Yamaha LF115 Bruksanvisning

Yamaha Utombordsmotor LF115

Läs nedan 📖 manual på svenska för Yamaha LF115 (90 sidor) i kategorin Utombordsmotor. Denna guide var användbar för 15 personer och betygsatt med 4.5 stjärnor i genomsnitt av 2 användare

Ladda ner PDF

Sida 1/90

F115

LF115

OWNER’S MANUAL

68V-28199-17

U.S.A.Edition

LIT-18626-06-75

EMU25060

ZMU01690

Read this owner s manual carefully before operating your outboard motor.’

Important manual information

EMU31280

To the owner

Thank you for choosing a Yamaha outboard

motor. This Owner’s Manual contains infor-

mation needed for proper operation, mainte-

nance and care. A thorough understanding

of these simple instructions will help you ob-

tain maximum enjoyment from your new

Yamaha. If you have any question about the

operation or maintenance of your outboard

motor, please consult a Yamaha dealer.

In this Owner’s Manual particularly important

information is distinguished in the following

ways.

The Safety Alert Symbol means

ATTENTION! BECOME ALERT! YOUR

SAFETY IS INVOLVED!

WARNING

EWM00780

Failure to follow WARNING instructions

could result in severe injury or death to

the machine operator, a bystander, or a

person inspecting or repairing the out-

board motor.

CAUTION:

ECM00700

A CAUTION indicates special precautions

that must be taken to avoid damage to the

outboard motor.

NOTE:

A NOTE provides key information to make

procedures easier or clearer.

Yamaha continually seeks advancements in

product design and quality. Therefore, while

this manual contains the most current prod-

uct information available at the time of print-

ing, there may be minor discrepancies

between your machine and this manual. If

there is any question concerning this manu-

al, please consult your Yamaha dealer.

NOTE:

The F115TR, LF115TR and the standard ac-

cessories are used as a base for the expla-

nations and illustrations in this manual.

Therefore some items may not apply to ev-

ery model.

EMU25110

F115, LF115

OWNER’S MANUAL

1st edition, April 2005

Any reprinting or unauthorized use

without the written permission of

Yamaha Motor Corporation, USA

is expressly prohibited.

Printed in Japan

P/N LIT-18626-06-75

Table of contents

General information .......................... 1

Identification numbers record.......... 1

Outboard motor serial number .......... 1

Key number....................................... 1

Emission control information ........... 1

North American models..................... 1

Star labels ......................................... 2

Safety information ........................... 3

Important labels............................... 4

Warning labels .................................. 4

Basic boating rules (Rules of the

road) ..............................................5

Steering and sailing rules and

sound signals.................................. 5

Rules when encountering vessels .... 5

Other special situations..................... 6

Fueling instructions ......................... 8

Gasoline............................................ 9

Engine oil .......................................... 9

Battery requirement....................... 10

Battery specifications ...................... 10

Propeller selection......................... 10

Start-in-gear protection ................. 11

Basic components .......................... 12

Main components.......................... 12

Remote control................................ 12

Remote control lever....................... 13

Neutral interlock trigger ................... 13

Neutral throttle lever........................ 14

Free accelerator.............................. 14

Tiller handle .................................... 14

Gear shift lever................................ 15

Throttle grip..................................... 15

Throttle indicator ............................. 15

Throttle friction adjuster................... 15

Engine stop lanyard switch ............. 16

Engine stop button .......................... 17

Main switch ..................................... 17

Power trim and tilt switch on

remote control or tiller handle ....... 18

Power trim and tilt switch on

bottom engine cowling .................. 18

Power trim and tilt switches (twin

binnacle type) ............................... 19

Trim tab with anode ........................ 19

Tilt support lever for power trim and

tilt or hydro tilt model..................... 20

Top cowling lock lever (pull up

type)..............................................20

Flushing device ............................... 20

Warning indicator ............................21

Tachometer ..................................... 21

Digital tachometer ...........................21

Low oil pressure warning

indicator ........................................ 22

Low oil pressure warning

indicator ........................................ 22

Overheat warning indicator ............. 22

Overheat warning indicator (digital

type)..............................................23

Speedometer (digital type) .............. 23

Trim meter.......................................23

Trim meter (digital type) .................. 24

Hour meter (digital type).................. 24

Trip meter........................................24

Clock ...............................................25

Fuel gauge ...................................... 25

Fuel warning indicator ..................... 25

Low battery voltage warning

indicator ........................................ 26

Fuel management meter ................. 26

Fuel flow meter................................ 26

Fuel consumption meter.................. 27

Fuel economy..................................27

Twin-engine speed synchronizer .... 28

Warning system ............................ 28

Overheat warning (twin engines) .... 29

Low oil pressure warning ................ 30

Operation ......................................... 31

Installation..................................... 31

Mounting the outboard motor .......... 31

Breaking in engine ........................ 32

Procedure for 4-stroke models........ 32

Preoperation checks ..................... 32

Fuel .................................................33

Controls...........................................33

Engine ............................................. 33

Checking the engine oil level .......... 33

Filling fuel...................................... 34

Ring Free Fuel Additive................... 34

Table of contents

Operating engine........................... 34

Feeding fuel .................................... 34

Starting engine................................ 35

Warming up engine ....................... 38

Manual start and electric start

models .......................................... 38

Shifting .......................................... 38

Forward (tiller handle and remote

control models) ............................. 38

Reverse (automatic reverse lock

and power trim and tilt models)..... 39

Stopping engine ............................ 40

Procedure ....................................... 40

Trimming outboard motor.............. 41

Adjusting trim angle ........................ 41

Adjusting boat trim .......................... 42

Tilting up and down ....................... 43

Procedure for tilting up.................... 44

Procedure for tilting down ............... 45

Cruising in shallow water .............. 46

Power trim and tilt models / power

tilt models...................................... 46

Cruising in other conditions........... 47

Maintenance..................................... 49

Specifications ................................ 49

Transporting and storing outboard

motor ...........................................50

Storing outboard motor ................... 50

Procedure ....................................... 51

Lubrication (except oil injection

models)......................................... 52

Cleaning and anticorrosion

measures ...................................... 52

Battery care..................................... 52

Flushing power unit......................... 53

Cleaning the outboard motor .......... 54

Checking painted surface of

motor............................................. 54

Periodic maintenance.................... 54

Replacement parts.......................... 54

Maintenance chart .......................... 55

Maintenance chart (additional)........ 56

Greasing ......................................... 57

Cleaning and adjusting spark

plug ............................................... 57

Checking fuel system ...................... 58

Inspecting fuel filter ......................... 59

Cleaning fuel filter ........................... 59

Inspecting idling speed.................... 59

Changing engine oil ........................ 60

Checking wiring and connectors ..... 62

Exhaust leakage..............................62

Water leakage ................................. 62

Engine oil leakage...........................62

Checking power trim and tilt

system........................................... 62

Checking propeller ..........................63

Removing the propeller ................... 64

Installing the Propeller..................... 64

Changing gear oil............................ 65

Inspecting and replacing

anode(s)........................................ 66

Checking battery (for electric start

models) ......................................... 67

Connecting the battery .................... 67

Disconnecting the battery................ 68

Checking top cowling ...................... 68

Coating the boat bottom.................. 68

Trouble Recovery............................ 69

Troubleshooting ............................ 69

Temporary action in emergency ... 72

Impact damage ...............................72

Running single engine..................... 72

Replacing fuse ................................73

Power trim and tilt / power tilt will

not operate.................................... 73

Starter will not operate .................... 74

Emergency starting engine ............. 74

Treatment of submerged motor .... 75

Procedure........................................76

Consumer information ................... 77

Important warranty information for

U.S.A. and Canada ..................... 77

YAMAHA MOTOR

CORPORATION, U.S.A.

FOUR-STROKE OUTBOARD

MOTOR

THREE-YEAR LIMITED

WARRANTY ............................... 79

IMPORTANT WARRANTY

Table of contents

INFORMATION IF YOU USE

YOUR YAMAHA OUTSIDE THE

USA OR CANADA ...................... 81

General information

EMU25262

Manufactured date label

This label is attached to the clamp bracket or

the swivel bracket.

EMU25272

Star labels

Your outboard motor is labeled with a Cali-

fornia Air Resources Board (CARB) star la-

bel. See below for a description of your

particular label.

EMU25280

One Star—Low Emission

The one-star label identifies engines that

meet the Air Resources Board’s 2001 ex-

haust emission standards. Engines meeting

these standards have 75% lower emissions

than conventional carbureted two-stroke en-

gines. These engines are equivalent to the

U.S. EPA’s 2006 standards for marine en-

gines.

EMU25290

Two Stars—Very Low Emission

The two-star label identifies engines that

meet the Air Resources Board’s 2004 ex-

haust emission standards. Engines meeting

these standards have 20% lower emissions

than One Star-Low-Emission engines.

1. Manufactured date label location

ZMU05159

ZMU04277

ZMU04776

ZMU01702

General information

EMU25300

Three Stars—Ultra Low Emission

The three-star label identifies engines that

meet the Air Resources Board’s 2008 ex-

haust emission standards. Engines meeting

these standards have 65% lower emissions

than One Star-Low-Emission engines.

EMU25362

Safety information

●Before mounting or operating the outboard

motor, read this entire manual. Reading it

should give you an understanding of the

motor and its operation.

●Before operating the boat, read any own-

er’s or operator’s manuals supplied with it

and all labels. Be sure you understand

each item before operating.

●Do not overpower the boat with this out-

board motor. Overpowering the boat could

result in loss of control. The rated power of

the outboard should be equal to or less

than the rated horsepower capacity of the

boat. If the rated horsepower capacity of

the boat is unknown, consult the dealer or

boat manufacturer.

●Do not modify the outboard. Modifications

could make the motor unfit or unsafe to

use.

●Incorrect propeller selection and incorrect

use may not only cause engine damage,

but also adversely affect fuel consumption.

Consult your dealer for correct use.

●Never operate after drinking alcohol or tak-

ing drugs. About 50% of all boating fatali-

ties involve intoxication.

●Have an approved personal flotation de-

vice (PFD) on board for every occupant. It

is a good idea to wear a PFD whenever

boating. At a minimum, children and non-

swimmers should always wear PFDs, and

everyone should wear PFDs when there

are potentially hazardous boating condi-

tions.

●Gasoline is highly flammable, and its va-

pors are flammable and explosive. Handle

and store gasoline carefully. Make sure

there are no gas fumes or leaking fuel be-

fore starting the engine.

●This product emits exhaust gases which

contain carbon monoxide, a colorless,

odorless gas which may cause brain dam-

age or death when inhaled. Symptoms in-

clude nausea, dizziness, and drowsiness.

Keep cockpit and cabin areas well ventilat-

ed. Avoid blocking exhaust outlets.

●Check throttle, shift, and steering for prop-

er operation before starting the engine.

●Attach the engine stop switch lanyard cord

to a secure place on your clothing, or your

arm or leg while operating. If you acciden-

tally leave the helm, the cord will pull from

ZMU01703

ZMU01704

General information

the switch, stopping the engine.

●Know the marine laws and regulations

where you will be boating—and obey

them. For basic boating rules, see “Rules

of the road” on page 5.

●Stay informed about the weather. Check

weather forecasts before boating. Avoid

boating in hazardous weather.

●Tell someone where you are going: leave

a Float Plan with a responsible person. Be

sure to cancel the Float Plan when you re-

turn.

●Use common sense and good judgment

when boating. Know your abilities, and be

sure you understand how your boat han-

dles under the different boating conditions

you may encounter. Operate within your

limits, and the limits of your boat. Always

operate at safe speeds, and keep a careful

watch for obstacles and other traffic.

●Always watch carefully for swimmers dur-

ing the engine operation.

●Stay away from swimming areas.

●When a swimmer is in the water near you

shift into neutral and shut off the engine.

●Do not illegally discard empty containers

used to replace or replenish oil. For the

correct processing of empty containers,

consult the dealer where you purchased

the oil.

●When replacing oils used to lubricate the

product (engine or gear oil), be sure to

wipe away any spilt oil. Never pour oil with-

out using a funnel or similar device. If nec-

essary, verify the necessary replacement

procedure with the dealer.

●Never illegally discard (dump) the product.

Yamaha recommends consulting the deal-

er on discarding the product.

Be informed about boating safety. Additional

publications and information can be obtained

from many organizations, including the fol-

lowing:

United States Coast Guard

Consumer Affairs Staff (G-BC)

Office of Boating, Public, and Consumer Af-

fairs

U.S. Coast Guard Headquarters

Washington, D.C. 20593-0001

Boating Safety Hotline: 1-800-368-5647

National Marine Manufacturers Associa-

tion (NMMA)

401 N. Michigan Ave.

Chicago, Il 60611

Marine Retailers Association of America

155 N. Michigan Ave.

Chicago, Il 60601

EMU25382

Important labels

EMU25395

Warning labels

EMU25401

Label

WARNING

EWM01260

●Be sure shift control is in neutral before

starting engine. (except 2HP)

●Do not touch or remove electrical parts

when starting or during operation.

●Keep hands, hair, and clothes away

from flywheel and other rotating parts

while engine is running.

ZMU04275

General information

sel head-on)

Crossing: (you are traveling across the oth-

er vessel’s path)

Overtaking: (you are passing or being

passed by another vessel)

In the following illustration, your boat is in the

center. You should give the right-of-way to

any vessels shown in white area (you are the

Give-Way vessel). Any vessels in the shad-

ed area must yield to you (they are the Give-

Way vessels). Both you and the meeting

vessel must alter course to avoid each other.

Meeting

If you are meeting another power vessel

head on, and are close enough to run the risk

of collision, neither of you has the right-of-

way! Both of you should alter course to avoid

an accident. You should keep the other ves-

sel on your port (left) side. This rule doesn’t

apply if both of you will clear one another if

you continue on your set course and speed.

Crossing

When two power driven vessels are crossing

each other’s path close enough to run the

risk of collision, the vessel which has the oth-

er on the starboard (right) side must keep out

of the way of the other. If the other vessel is

on your right, you must keep out of its way;

you are the Give-Way vessel. If the other

vessel is on your port (left) side, remember

that you should maintain course and direc-

tion, provided the other vessel gives you the

right-of-way as it should.

Overtaking

If you are passing another vessel, you are

the “Give-Way” vessel. This means that the

other vessel is expected to maintain its

course and speed. You must stay out of its

way until you are clear of it. Likewise, if an-

other vessel is passing you, you should

maintain your speed and direction so that the

other vessel can steer itself around you.

EMU25530

Other special situations

There are three other rules you should be

aware of when driving your boat around oth-

er vessels.

Narrow channels and bends

When navigating in narrow channels, you

should keep to the right when it is safe and

practical to do so. If the operator of a power-

driven vessel is preparing to go around a

General information

bend that may obstruct the view of other wa-

ter vessels, the operator should sound a pro-

longed blast on the whistle (4 to 6 seconds).

If another vessel is around the bend, it too

should sound the whistle. Even if no reply is

heard, however, the vessel should still pro-

ceed around the bend with caution. If you

navigate such waters with your boat, you will

need to carry a portable air horn, available

from local marine supply stores.

Fishing vessel right-of-way

All vessels which are fishing with nets, lines

or trawls are considered to be “fishing ves-

sels” under the International Rules. Vessels

with trolling lines are not considered fishing

vessels. Fishing vessels have the right-of-

way regardless of position. Fishing vessels

cannot, however, impede the passage of

other vessels in narrow channels.

Sailing vessel right-of-way

Sailing vessels should normally be given the

right-of-way. The exceptions to this are:

1. When the sailing vessel is overtaking

the power-driven vessel, the power-driv-

en vessel has the right-of-way.

2. Sailing vessels should keep clear of any

fishing vessel.

3. In a narrow channel, a sailing vessel

should not hamper the safe passage of

a power-driven vessel which can navi-

gate only in such a channel.

Reading buoys and other markers

The waters of the United states are marked

for safe navigation by the lateral system of

buoyage. Simply put, buoys and markers

have an arrangement of shapes, colors,

numbers and lights to show which side of the

buoy a boater should pass on when navigat-

ing in a particular direction. The markings on

these buoys are oriented from the perspec-

tive of being entered from seaward (the boat-

er is going towards the port). This means that

red buoys are passed on the starboard

(right) side when proceeding from open wa-

ter into port, and black buoys are to port (left)

side. When navigating out of port, your posi-

tion with respect to the buoys should be re-

versed; red buoys should be to port and

black buoys to starboard.

Many bodies of water used by boaters are

entirely within the boundaries of a particular

state. The Uniform State Waterway Marking

System has been devised for these waters.

This system uses buoys and signs with dis-

tinctive shapes and colors to show regulato-

ry or advisory information. These markers

are white with black letters and orange

boarders. They signify speed zones, restrict-

ed areas, danger areas, and general infor-

mation.

Remember, markings may vary by geo-

graphic location. Always consult local boat-

ing authorities before driving your boat in

unfamiliar waters.

General information

dry rags.

●Do not overfill the fuel tank.

●Tighten the filler cap securely after re-

fueling.

●If you should swallow some gasoline,

inhale a lot of gasoline vapor, or get

gasoline in your eyes, get immediate

medical attention.

●If any gasoline spills onto your skin, im-

mediately wash with soap and water.

Change clothing if gasoline spills on it.

●Touch the fuel nozzle to the filler open-

ing or funnel to help prevent electro-

static sparks.

CAUTION:

ECM00010

Use only new clean gasoline which has

been stored in clean containers and is not

contaminated with water or foreign mat-

ter.

EMU25570

Gasoline

If knocking or pinging occurs, use a different

brand of gasoline or premium unleaded fuel.

Gasohol

There are two types of gasohol: gasohol con-

taining ethanol and that containing metha-

nol. Gasohol containing ethanol can be used

if ethanol content does not exceed 10% and

the fuel meets minimum octane ratings.

Yamaha does not recommended gasohol

containing methanol because it can cause

fuel system damage or engine performance

problems.

EMU25683

Engine oil

NOTE:

If the recommended engine oil grades are

not available, select an alternative from the

following chart according to the average

temperatures in your area.

CAUTION:

ECM01050

All 4-stroke engines are shipped from the

factory without engine oil.

Recommended gasoline:

Regular unleaded gasoline with a min-

imum octane rating of 86 (Pump Oc-

tane Number) = (R+M)/2

Recommended engine oil:

4-stroke motor oil with a combination

of the following SAE and API oil classi-

fications

Engine oil type SAE:

10W-30 or 10W-40

Engine oil grade API:

SE, SF, SG, SH, SJ, SL

Engine oil quantity (excluding oil filter):

4.3 L (4.55 US qt) (3.78 Imp.qt)

General information

EMU25700

Battery requirement

CAUTION:

ECM01060

Do not use a battery that does not meet

the specified capacity. If a battery which

does not meet specifications is used, the

electric system could perform poorly or

be overloaded, causing electric system

damage.

For electric start models, choose a battery

which meets the following specifications.

EMU25711

Battery specifications

NOTE:

The engine cannot be started if battery volt-

age is too low.

EMU25742

Propeller selection

The performance of your outboard motor will

be critically affected by your choice of propel-

ler, as an incorrect choice could adversely

affect performance and could also seriously

damage the motor. Engine speed depends

on the propeller size and boat load. If engine

speed is too high or too low for good engine

performance, this will have an adverse effect

on the engine.

Yamaha outboard motors are fitted with pro-

pellers chosen to perform well over a range

of applications, but there may be uses where

a propeller with a different pitch would be

more appropriate. For a greater operating

load, a smaller-pitch propeller is more suit-

able as it enables the correct engine speed

to be maintained. Conversely, a larger-pitch

propeller is more suitable for a smaller oper-

ating load.

Yamaha dealers stock a range of propellers,

and can advise you and install a propeller on

your outboard that is best suited to your ap-

plication.

NOTE:

Select a propeller which will allow the engine

to reach the middle or upper half of the oper-

ating range at full throttle with the maximum

boat load. If operating conditions such as

light boat loads then allow the engine r/min to

Minimum cold cranking amps (CCA/

SAE):

380.0 A

Minimum marine cranking amps (MCA/

ABYC):

502.0 A

Minimum reserve capacity (RC/SAE):

124 minutes

ZMU01710

1. Propeller diameter in inches

2. Propeller pitch in inches

3. Type of propeller (propeller mark)

ZMU04608

-x

1 2 3

General information

rise above the maximum recommended

range, reduce the throttle setting to maintain

the engine in the proper operating range.

For instructions on propeller removal and in-

stallation, see page 63.

EMU25770

Start-in-gear protection

Yamaha outboard motors or Yamaha-ap-

proved remote control units are equipped

with start-in-gear protection device(s). This

feature permits the engine to be started only

when it is in neutral. Always select neutral

before starting the engine.

Basic components

EMU25796

Main components

NOTE:

* May not be exactly as shown; also may not be included as standard equipment on all mod-

els.

F115, LF115

EMU26180

Remote control

The remote control lever actuates both the

shifter and the throttle. The electrical switch-

es are mounted on the remote control box.

11 12 13

14 15

16 17 18

ZMU04773

1. Top cowling

2. Top cowling lock lever(s)

3. Drain screw

4. Anti-cavitation plate

5. Trim tab (anode)

6. Propeller*

7. Cooling water inlet

8. Anode

9. Flushing device

10. Power trim and tilt switch

11. Remote control box (side mount type)*

12. Remote control box (binnacle mount type)*

13. Switch panel (for use with binnacle type)*

14. Tachometer*

15. Trim meter*

16. Digital speedometer*

17. Digital tachometer*

18. Fuel management meter*

Basic components

EMU26190

Remote control lever

Moving the lever forward from the neutral po-

sition engages forward gear. Pulling the le-

ver back from neutral engages reverse. The

engine will continue to run at idle until the le-

ver is moved about 35° (a detent can be felt).

Moving the lever farther opens the throttle,

and the engine will begin to accelerate.

EMU26201

Neutral interlock trigger

To shift out of neutral, first pull the neutral in-

terlock trigger up.

1. Power trim and tilt switch

2. Remote control lever

3. Neutral interlock trigger

4. Neutral throttle lever

5. Main switch / choke switch

6. Engine stop lanyard switch

7. Throttle friction adjuster

1. Remote control lever

2. Power trim and tilt switch

3. Free accelerator

4. Throttle friction adjuster

ZMU04569

1. Neutral “ ”

2. Forward “ ”

3. Reverse “ ”

4. Shift

5. Fully closed

6. Throttle

7. Fully open

1. Neutral “ ”

2. Forward “ ”

3. Reverse “ ”

4. Shift

5. Fully closed

6. Throttle

7. Fully open

4 4

ZMU04573

Basic components

EMU26211

Neutral throttle lever

To open the throttle without shifting into ei-

ther forward or reverse, put the remote con-

trol lever in the neutral position and lift the

neutral throttle lever.

NOTE:

The neutral throttle lever will operate only

when the remote control lever is in neutral.

The remote control lever will operate only

when the neutral throttle lever is in the closed

position.

EMU26232

Free accelerator

To open the throttle without shifting into ei-

ther forward or reverse, push the free accel-

erator button and move the remote control

lever.

NOTE:

●The free accelerator button can only be

used when the remote control lever is in

the neutral position.

●After the button is pushed, the throttle be-

gins to open after the remote control lever

is moved at least 35°.

●After using the free accelerator, return the

remote control lever to the neutral position.

The free accelerator button will return au-

tomatically to its set position. The remote

control will then engage forward and re-

verse normally.

EMU25911

Tiller handle

To change direction, move the tiller handle to

the left or right as necessary.

1. Neutral interlock trigger

1. Fully open

2. Fully closed

1. Fully open

2. Fully closed

3. Free accelerator

ZMU04575

Basic components

EMU25922

Gear shift lever

Pulling the gear shift lever towards you puts

the engine in forward gear so that the boat

moves ahead. Pushing the lever away from

you puts the engine in reverse gear so that

the boat moves astern.

EMU25941

Throttle grip

The throttle grip is on the tiller handle. Turn

the grip counterclockwise to increase speed

and clockwise to decrease speed.

EMU25961

Throttle indicator

The fuel consumption curve on the throttle

indicator shows the relative amount of fuel

consumed for each throttle position. Choose

the setting that offers the best performance

and fuel economy for the desired operation.

EMU25970

Throttle friction adjuster

A friction device provides adjustable resis-

tance to movement of the throttle grip or the

remote control lever, and can be set accord-

ing to operator preference.

To increase resistance, turn the adjuster

clockwise. To decrease resistance, turn the

adjuster counterclockwise.

WARNING

EWM00030

Do not overtighten the friction adjuster. If

there is too much resistance, it could be

1. Forward “ ”

2. Neutral “ ”

3. Reverse “ ”

1. Throttle indicator

Basic components

difficult to move throttle lever or grip,

which could result in an accident.

When constant speed is desired, tighten the

adjuster to maintain the desired throttle set-

ting.

EMU25990

Engine stop lanyard switch

The lock plate must be attached to the en-

gine stop switch for the engine to run. The

lanyard should be attached to a secure place

on the operator’s clothing, or arm or leg.

Should the operator fall overboard or leave

the helm, the lanyard will pull out the lock

plate, stopping ignition to the engine. This

will prevent the boat from running away un-

der power.

WARNING

EWM00120

●Attach the engine stop switch lanyard

to a secure place on your clothing, or

your arm or leg while operating.

●Do not attach the lanyard to clothing

that could tear loose. Do not route the

lanyard where it could become entan-

gled, preventing it from functioning.

●Avoid accidentally pulling the lanyard

during normal operation. Loss of en-

gine power means the loss of most

steering control. Also, without engine

power, the boat could slow rapidly. This

could cause people and objects in the

boat to be thrown forward.

NOTE:

The engine cannot be started with the lock

plate removed.

ZMU04646

1. Lanyard

2. Lock plate

Basic components

EMU26141

Power trim and tilt switch on remote

control or tiller handle

The power trim and tilt system adjusts the

outboard motor angle in relation to the tran-

som. Pressing the switch “ ” (up) trims the

outboard motor up, then tilts it up. Pressing

the switch “ ” (down) tilts the outboard mo-

tor down and trims it down. When the switch

is released, the outboard motor will stop in its

current position.

NOTE:

For instructions on using the power trim and

tilt switch, see pages 41 and 43.

EMU26151

Power trim and tilt switch on bottom

engine cowling

The power trim and tilt switch is located on

the side of the bottom engine cowling. Press-

ing the switch “ ” (up) trims the outboard

motor up, then tilts it up. Pressing the switch

“ ” (down) tilts the outboard motor down

and trims it down. When the switch is re-

leased, the outboard motor will stop in its

current position.

WARNING

EWM01030

Use the power trim and tilt switch located

on the bottom engine cowling only when

the boat is at a complete stop with the en-

gine off. Attempting to use this switch

while the boat is moving could increase

the risk of falling overboard and could

distract the operator, increasing the risk

of collision with another boat or an obsta-

cle.

Basic components

EMU26340

Tilt support lever for power trim and

tilt or hydro tilt model

To keep the outboard motor in the tilted up

position, lock the tilt support lever to the

clamp bracket.

EMU26382

Top cowling lock lever (pull up type)

To remove the engine top cowling, pull up

the lock lever(s) and lift off the cowling.

When installing the cowling, check to be sure

it fits properly in the rubber seal. Then lock

the cowling by moving the lever(s) down-

ward.

EMU26460

Flushing device

This device is used to clean the cooling wa-

ter passages of the motor using a garden

hose and tap water.

NOTE:

For details on usage, see page 53.

2. Bolt

3. Cap

1. Tilt support lever

ZMU01863

ZMU03979

1. Top cowling lock lever(s)

ZMU04225

ZMU04226

Basic components

EMU26300

Warning indicator

If the engine develops a condition which is

cause for warning, the indicator lights up. For

details on how to read the warning indicator,

see page 28.

EMU26470

Tachometer

This gauge shows the engine speed and has

the following functions.

EMU26491

Digital tachometer

The tachometer shows the engine speed

and has the following functions.

NOTE:

All segments of the display will light momen-

tarily after the main switch is turned on and

will return to normal thereafter.

1. Flushing device

ZMU04256

1. Tachometer

2. Warning indicator(s)

1. Tachometer

2. Trim meter

3. Hour meter

4. Low oil pressure warning indicator

5. Overheat warning indicator

6. Water separator warning indicator

7. Engine trouble warning indicator

8. Set button

9. Mode button

ZMU04578

89ZMU04185

Basic components

NOTE:

The water separator and engine trouble

warning indicators only operate when the en-

gine is equipped with the appropriate func-

tions.

EMU26501

Low oil pressure warning indicator

If oil pressure drops too low, this indicator will

flash. For further information, see page 30.

CAUTION:

ECM00020

●Do not continue to run the engine if the

low oil pressure warning indicator is on

and the engine oil level is lower. Seri-

ous engine damage will occur.

●The low oil pressure warning indicator

does not indicate the engine oil level.

Use the oil dipstick to check the re-

maining oil quantity. For further infor-

mation, see page 33.

EMU26521

Low oil pressure warning indicator

If oil pressure drops too low, the warning in-

dicator will start to blink. For further informa-

tion, see page 30.

CAUTION:

ECM00020

●Do not continue to run the engine if the

low oil pressure warning indicator is on

and the engine oil level is lower. Seri-

ous engine damage will occur.

●The low oil pressure warning indicator

does not indicate the engine oil level.

Use the oil dipstick to check the re-

maining oil quantity. For further infor-

mation, see page 33.

EMU26571

Overheat warning indicator

If the engine temperature rises too high, this

indicator will flash. For further information on

reading the indicator, see page 30.

CAUTION:

ECM00050

Do not continue to run the engine if the

overheat warning indicator is on. Serious

engine damage will occur.

ZMU04754

1. Low oil pressure warning indicator

ZMU01736

ZMU04715

Basic components

EMU26581

Overheat warning indicator (digital

type)

If the engine temperature rises too high, the

warning indicator will start to blink. For fur-

ther information on reading the indicator, see

page 28.

CAUTION:

ECM00050

Do not continue to run the engine if the

overheat warning indicator is on. Serious

engine damage will occur.

EMU26600

Speedometer (digital type)

This gauge shows the boat speed.

NOTE:

After the main switch is first turned on, all

segments of the display come on as a test.

After a few seconds, the gauge will change

to normal operation. Watch the gauge when

turning on the main switch to make sure all

segments come on.

NOTE:

The speedometer displays km/h, mph, or

knots, according to operator preference. Se-

lect the desired unit of measurement by set-

ting the selector switch on the back of the

gauge. See the illustration for settings.

EMU26610

Trim meter

This gauge shows the trim angle of your out-

board motor.

1. Overheat warning indicator

1. Speedometer

2. Fuel gauge

3. Trip meter/clock/voltmeter

4. Warning indicator(s)

ZMU01737

1. Cap

2. Selector switch (for speed unit)

3. Selector switch (for fuel sensor)

Basic components

NOTE:

Memorize the trim angles that work best for

your boat under different conditions. Adjust

the trim angle to the desired setting with the

power trim and tilt switch.

EMU26620

Trim meter (digital type)

This meter shows the trim angle of your out-

board motor.

NOTE:

●Memorize the trim angles that work best

for your boat under different conditions.

Adjust the trim angle to the desired using

the power trim and tilt switch.

●If the trim angle of your motor exceeds the

trim operating range, the top segment on

the trim meter display will blink.

EMU26650

Hour meter (digital type)

This meter shows the number of hours the

engine has been run. It can be set to show

the total number of hours or the number of

hours for the current trip. The display can

also be turned on and off.

●Changing the display format

●Pressing the “ ” (mode) button chang-

es the display format in the following pat-

tern:

●Total hours→Trip hours→Display off

●Resetting the trip hours

●Simultaneously pressing the “ ” (set)

and “ ” (mode) buttons for more than

1 second while the trip hours are displayed

resets the trip counter to 0 (zero).

NOTE:

The total number of hours the engine has

been run cannot be reset.

EMU26690

Trip meter

This gauge displays the distance the boat

has traveled since the gauge was last reset.

Press the “ ” (mode) button repeatedly

until the indicator on the face of the gauge

points to “ ” (trip). To reset the trip meter

to zero, press the “ ” (set) and “ ”

(mode) buttons at the same time.

ZMU04581

ZMU01740

ZMU01741

Basic components

NOTE:

●The trip distance is shown in kilometers or

miles depending upon the unit of measure-

ment selected for the speedometer.

●The trip distance is kept in memory by bat-

tery power. The stored data will be lost if

the battery is disconnected.

EMU26700

Clock

Press the “ ” (mode) button repeatedly

until the indicator on the face of the gauge

points to “ ” (time). To set the clock, be

sure the gauge is in the “ ” (time) mode.

Press the “ ” (set) button; the hour display

will begin blinking. Press the “ ” (mode)

button until the desired hour is displayed.

Press the “ ” (set) button again, the minute

display will begin blinking. Press the “ ”

(mode) button until the desired minute is dis-

played. Press the “ ” (set) button again to

start the clock.

NOTE:

The clock operates on battery power. Dis-

connecting the battery will stop the clock.

Reset the clock after connecting the battery.

EMU26710

Fuel gauge

The fuel level is indicated by eight segments.

When all segments are showing, the fuel

tank is full.

CAUTION:

ECM00860

The Yamaha fuel tank sensor differs from

conventional sensors. Incorrectly setting

the selector switch on the gauge will give

false readings. Consult your Yamaha

dealer on how to correctly set the selec-

tor switch.

NOTE:

The fuel level reading can be affected by the

position of the sensor in the fuel tank and the

attitude of the boat in the water. Operation

with bow-up trim or continuous turning can

give false readings.

EMU26720

Fuel warning indicator

If the fuel level decreases to one segment,

the fuel level warning segment will begin to

ZMU01745

Basic components

blink.

CAUTION:

ECM00880

Do not continue to operate the engine

with full throttle if a warning device has

activated. Get back to the port within troll-

ing engine speed.

EMU26730

Low battery voltage warning

indicator

If battery voltage drops, the display will auto-

matically turn on and begin to blink.

CAUTION:

ECM00870

Get back to the port soon if a warning de-

vice has activated. For charging the bat-

tery, consult your Yamaha dealer.

EMU26740

Fuel management meter

The fuel management meter shows the state

of the fuel consumption while the engine is

running.

NOTE:

After the main switch is first turned on, all

segments of the display come on as a test.

After a few seconds, the gauge will change

to normal operation. Watch the gauge when

turning on the main switch to make sure all

segments come on.

EMU26750

Fuel flow meter

The fuel flow meter displays the amount of

fuel flow over a one hour period, at the cur-

rent rate of engine operation.

If twin engines are installed on your boat, the

fuel flow meter displays the total fuel flow of

both the port and starboard engines. It also

displays “ ” (for port and starboard).

1. Fuel level warning segment

1. Low battery indicator

1. Fuel ow meterﬂ

2. Fuel consumption meter / Fuel economy

meter / Twin engine speed synchronizer

3. Water separator warning indicator (operates

only if the sensor has been installed)

ZMU01748

Basic components

NOTE:

If twin engines are installed on your boat, the

gauge will only display the total fuel economy

of both engines.

NOTE:

●Fuel consumption varies greatly with boat

design, weight, propeller used, engine trim

angle, sea conditions (including wind), and

throttle position. Fuel consumption also

varies slightly with the type of water (salt,

fresh, and contaminate levels), air temper-

ature and humidity, cleanliness of the boat

bottom, engine mounting height, skill of

the operator, and individual gasoline for-

mulation (winter or summer fuel and

amount of additives).

●The Yamaha digital speedometer and fuel

management meter calculates speed,

miles traveled, and fuel economy by water

movement at the stern of the boat. This

distance can vary greatly from the actual

distance traveled because of water cur-

rents, sea swells, and the condition of the

water speed sensor (partially plugged or

damaged).

●Individual engines may slightly vary in their

fuel consumption due to manufacturing

variations. These variations can be even

greater if the engines are of different year

models. In addition, variations in propel-

lers, even of the same basic dimensions of

the same design, can also cause a slight

variation in fuel consumption.

EMU26780

Twin-engine speed synchronizer

This gauge displays the difference in engine

speed (r/min) between the port and star-

board engines for reference purposes when

synchronizing the two engines speeds.’

Press the “ ” (mode) button repeatedly

until the indicator on the face of the gauge

points to “ ” (synchronizer).

NOTE:

If the two engines speeds are not synchro-’

nized while cruising, they can be synchro-

nized by adjusting trim angle or throttle.

EMU26801

Warning system

CAUTION:

ECM00090

Do not continue to operate the engine if a

warning device has activated. Consult

your Yamaha dealer if the problem can-

1. Port engine speed is higher

2. Port engine speed is slightly higher

3. Engine speed is synchronized evenly

between port and starboard engines

4. Starboard engine speed is slightly higher

5. Starboard engine speed is higher

ZMU01753

ZMU01754

Basic components

on the engine not affected by overheating,

turn off the main switch of the engine over-

heating.

EMU30351

Low oil pressure warning

If the oil pressure drops too low, the warning

device will activate.

Activation of warning device

●Engine speed will automatically decrease

to 2000 3500 r/min.–

●The low oil pressure warning indicator will

light.

●The buzzer will sound.

If the warning system has activated, stop the

engine as soon as it is safe to do so. Check

the oil level and add oil as needed. If the oil

level is correct, consult your Yamaha dealer.

CAUTION:

ECM00100

Do not continue to run the engine if the

low oil pressure warning indicator is on.

Serious engine damage could occur.

ZMU04587

ZMU04254

ZMU02360

OFF START

ZMU04584

Operation

EMU26901

Installation

CAUTION:

ECM00110

Incorrect engine height or obstructions

to smooth water flow (such as the design

or condition of the boat, or accessories

such as transom ladders or depth finder

transducers) can create airborne water

spray while the boat is cruising. Severe

engine damage may result if the motor is

operated continuously in the presence of

airborne water spray.

NOTE:

During water testing check the buoyancy of

the boat, at rest, with its maximum load.

Check that the static water level on the ex-

haust housing is low enough to prevent wa-

ter entry into the powerhead, when water

rises due to waves when the outboard is not

running.

EMU26910

Mounting the outboard motor

WARNING

EWM00820

●Overpowering a boat could cause se-

vere instability. Do not install an out-

board motor with more horsepower

than the maximum rating on the capac-

ity plate of the boat. If the boat does not

have a capacity plate, consult the boat

manufacturer.

●The information presented in this sec-

tion is intended as reference only. It is

not possible to provide complete in-

structions for every possible boat and

motor combination. Proper mounting

depends in part on experience and the

specific boat and motor combination.

WARNING

EWM00830

Improper mounting of the outboard mo-

tor could result in hazardous conditions

such as poor handling, loss of control, or

fire hazards. Observe the following:

●For permanently mounted models, your

dealer or other person experienced in

proper rigging should mount the motor.

If you are mounting the motor yourself,

you should be trained by an experi-

enced person.

●For portable models, your dealer or oth-

er person experienced in proper out-

board motor mounting should show

you how to mount your motor.

Mount the outboard motor on the center line

(keel line) of the boat, and ensure that the

boat itself is well balanced. Otherwise the

boat will be hard to steer. For boats without

a keel or which are asymmetrical, consult

your dealer.

1. Center line (keel line)

ZMU01760

Operation

EMU26930

Mounting height (boat bottom)

To run your boat at optimum efficiency, the

water resistance (drag) of the boat and out-

board motor must be made as little as possi-

ble. The mounting height of the outboard

motor greatly affects the water resistance. If

the mounting height is too high, cavitation

tends to occur, thus reducing the propulsion;

and if the propeller tips cut the air, the engine

speed will rise abnormally and cause the en-

gine to overheat. If the mounting height is too

low, the water resistance will increase and

thereby reduce engine efficiency. Mount the

outboard motor so that the anti-cavitation

plate is in alignment with the bottom of the

boat.

NOTE:

●The optimum mounting height of the out-

board motor is affected by the boat/motor

combination and the desired use. Test

runs at different heights can help deter-

mine the optimum mounting height. Con-

sult your Yamaha dealer or boat

manufacturer for further information on de-

termining the proper mounting height.

●For instructions on setting the trim angle of

the outboard motor, see page 41.

EMU30172

Breaking in engine

Your new engine requires a period of break-

in to allow mating surfaces of moving parts to

wear in evenly. Correct break-in will help en-

sure proper performance and longer engine

life.

CAUTION:

ECM00800

Failure to follow the break-in procedure

could result in reduced engine life or

even severe engine damage.

EMU27080

Procedure for 4-stroke models

Run the engine under load (in gear with a

propeller installed) as follows.

1. For the first hour of operation:

Run the engine at 2000 r/min or at ap-

proximately half throttle.

2. For the second hour of operation:

Run the engine at 3000 r/min or at ap-

proximately three-quarter throttle.

3. For the next eight hours of operation:

Avoid continuous operation at full throt-

tle for more than five minutes at a time.

4. After the first 10 hours:

Operate the engine normally.

EMU27102

Preoperation checks

WARNING

EWM00080

If any item in the preoperation check is

1. Center line (keel line)

ZMU01874

Operation

not working properly, have it inspected

and repaired before operating the out-

board motor. Otherwise an accident

could occur.

CAUTION:

ECM00120

Do not start the engine out of water. Over-

heating and serious engine damage can

occur.

EMU27111

Fuel

●Check to be sure you have plenty of fuel

for your trip.

●Make sure there are no fuel leaks or gaso-

line fumes.

●Check fuel line connections to be sure they

are tight (if equipped Yamaha fuel tank or

boat tank).

●Be sure the fuel tank is positioned on a se-

cure, flat surface, and that the fuel line is

not twisted or flattened, or likely to contact

sharp objects (if equipped Yamaha fuel

tank or boat tank).

EMU27130

Controls

●Check throttle, shift, and steering for prop-

er operation before starting the engine.

●The controls should work smoothly, with-

out binding or unusual free play.

●Look for loose or damaged connections.

●Check operation of the starter and stop

switches when the outboard motor is in the

water.

EMU27150

Engine

●Check the engine and engine mounting.

●Look for loose or damaged fasteners.

●Check the propeller for damage.

●Check that the battery is in good condition

and the battery connections are secure.

EMU27163

Checking the engine oil level

1. Put the outboard motor in an upright po-

sition (not tilted).

2. Remove oil dipstick and wipe it clean.

3. Completely insert the dipstick and re-

move it again.

4. Check the oil level using the dipstick to

be sure the level falls between the upper

and lower marks. Fill with oil if it is below

the lower mark, or drain to the specified

level if it is above the upper mark.

NOTE:

Be sure to completely insert the dipstick into

the dipstick guide.

1. Oil dipstick

1. Lower level mark

2. Oil dipstick

3. Upper level mark

ZMU04257

ZMU02082

132

Operation

EMU30021

Filling fuel

WARNING

EWM00060

Gasoline and its vapors are highly flam-

mable and explosive. Keep away from

sparks, cigarettes, flames, or other

sources of ignition.

1. Remove the fuel tank cap.

2. Carefully fill the fuel tank.

3. Securely close the cap after filling the

tank. Wipe up any spilled fuel.

EMU27270

Ring Free Fuel Additive

Gasoline is a precise blend of many different

substances, each chosen to give certain

characteristics. Gasoline blends have been

changing in recent years in response to con-

cerns about pollution and resulting emis-

sions regulations. One of the most obvious

changes has been the elimination of lead

from most fuels.

As gasoline has changed, the amount of ad-

ditives such as aromatics and oxygenates

has increased. These additives are impor-

tant for the engines in passenger cars, but

they can have detrimental effects in marine

engines, because of increased deposits in

the combustion chamber. When enough de-

posits collect, piston rings begin sticking.

Performance drops and engine wear in-

creases dramatically.

While many additives available may reduce

deposits, Yamaha recommends the use of

Ring Free Fuel Additive, available from

your Yamaha dealer. Ring Free Fuel Addi-

tive has repeatedly proven its ability to clean

combustion deposits from inside the engine,

notably the critical piston-ring-land area, and

fuel system components. Follow product la-

beling for use instructions.

EMU27450

Operating engine

EMU27480

Feeding fuel

WARNING

EWM00420

●Before starting the engine, make sure

that the boat is tightly moored and that

you can steer clear of any obstructions.

Be sure there are no swimmers in the

water near you.

●When the air vent screw is loosened,

gasoline vapor will be released. Gaso-

line is highly flammable, and its vapors

are flammable and explosive. Refrain

from smoking, and keep away from

open flames and sparks while loosen-

ing the air vent screw.

●This product emits exhaust gases

which contain carbon monoxide, a col-

orless, odorless gas which could cause

brain damage or death when inhaled.

Symptoms include nausea, dizziness,

and drowsiness. Keep cockpit and cab-

in areas well ventilated. Avoid blocking

exhaust outlets.

1. If there is an air vent screw on the fuel

tank cap, loosen it 2 or 3 turns.

2. If there is a fuel joint or a fuel cock on the

boat, firmly connect the fuel line to the

joint or open the fuel cock.

3. Squeeze the primer pump with the outlet

end up until you feel it become firm.

Operation

EMU27490

Starting engine

EMU27592

Electric start / prime start models

1. Place the gear shift lever in neutral.

NOTE:

The start-in-gear protection device prevents

the engine from starting except when in neu-

tral.

2. Attach the engine stop switch lanyard to

a secure place on your clothing, or your

arm or leg. Then install the lock plate on

the other end of the lanyard into the en-

gine stop switch.

WARNING

EWM00120

●Attach the engine stop switch lanyard

to a secure place on your clothing, or

your arm or leg while operating.

●Do not attach the lanyard to clothing

that could tear loose. Do not route the

lanyard where it could become entan-

gled, preventing it from functioning.

●Avoid accidentally pulling the lanyard

during normal operation. Loss of en-

gine power means the loss of most

steering control. Also, without engine

power, the boat could slow rapidly. This

could cause people and objects in the

boat to be thrown forward.

3. Place the throttle grip in the “ ”

(start) position. After the engine starts,

return the throttle to the fully closed po-

sition.

4. Turn the main switch to “ ” (start),

and hold it for a maximum of 5 seconds.

Operation

5. Immediately after the engine starts, re-

lease the main switch and allow it to re-

turn to “ ” (on).

CAUTION:

ECM00191

●Never turn the main switch to “ ”

(start) while the engine is running.

●Do not keep the starter motor turning

for more than 5 seconds. If the starter

motor is turned continuously for more

than 5 seconds, the battery will be

quickly discharged, thus making it im-

possible to start the engine. The starter

can also be damaged. If the engine will

not start after 5 seconds of cranking,

return the main switch to “ ” (on), wait

10 seconds, then crank the engine

again.

NOTE:

●When the engine is cold, it needs to be

warmed up. For further information, see

page 38.

●If the engine is warm and fails to start,

open the throttle slightly and try to start the

engine again. If the engine still fails to

start, see page 69.

EMU27624

Electric start and remote control models

1. Place the remote control lever in “ ”

(neutral).

NOTE:

The start-in-gear protection device prevents

the engine from starting except when in neu-

tral.

2. Attach the engine stop switch lanyard to

a secure place on your clothing, or your

arm or leg. Then install the lock plate on

the other end of the lanyard into the en-

gine stop switch.

WARNING

EWM00120

●Attach the engine stop switch lanyard

to a secure place on your clothing, or

your arm or leg while operating.

●Do not attach the lanyard to clothing

that could tear loose. Do not route the

lanyard where it could become entan-

gled, preventing it from functioning.

●Avoid accidentally pulling the lanyard

during normal operation. Loss of en-

ZMU04588

Operation

gine power means the loss of most

steering control. Also, without engine

power, the boat could slow rapidly. This

could cause people and objects in the

boat to be thrown forward.

3. Turn the main switch to “ ” (on).

NOTE:

Dual engine users: When the main switch is

turned on, the buzzer operates for a few sec-

onds then stops automatically. The buzzer

also operates if one of the engines stalls.

4. Turn the main switch to “ ” (start),

and hold it for a maximum of 5 seconds.

5. Immediately after the engine starts, re-

lease the main switch to return it to “ ”

(on).

CAUTION:

ECM00191

●Never turn the main switch to “ ”

(start) while the engine is running.

●Do not keep the starter motor turning

for more than 5 seconds. If the starter

motor is turned continuously for more

than 5 seconds, the battery will be

quickly discharged, thus making it im-

possible to start the engine. The starter

can also be damaged. If the engine will

not start after 5 seconds of cranking,

return the main switch to “ ” (on), wait

10 seconds, then crank the engine

again.

STARTOFF

ZMU04589

START

ZMU04590

Operation

EMU27670

Warming up engine

EMU27710

Manual start and electric start

models

1. After starting the engine, allow it to idle

for 3 minutes to warm up. Failure to do

so will shorten engine life.

2. Be sure the low oil pressure warning in-

dicator goes off after starting the engine.

3. Check for a steady flow of water from the

cooling water pilot hole.

CAUTION:

ECM00210

●If the low oil pressure warning indicator

does not go off after the engine starts,

stop the engine. Otherwise serious en-

gine damage could occur. Check the oil

level and add oil if necessary. Consult

your Yamaha dealer if the cause for the

low oil pressure warning indicator can-

not be found.

●A continuous flow of water from the pi-

lot hole shows that the water pump is

pumping water through the cooling

passages. If water is not flowing out of

the pilot hole at all times while the en-

gine is running, overheating and seri-

ous damage could occur. Stop the

engine and check whether the cooling

water inlet on the lower case or the

cooling water pilot hole is blocked.

Consult your Yamaha dealer if the prob-

lem cannot be located and corrected.

EMU27740

Shifting

WARNING

EWM00180

Before shifting, make sure there are no

swimmers or obstacles in the water near

you.

CAUTION:

ECM00220

To change the boat direction or shifting

position from forward to reverse or vice-

versa, first close the throttle so that the

engine idles (or runs at low speeds).

EMU27763

Forward (tiller handle and remote

control models)

Tiller control models

1. Place the throttle grip in the fully closed

position.

2. Move the gear shift lever quickly and

ZMU04229

Operation

firmly from neutral to forward.

Remote control models

1. Pull up the neutral interlock trigger (if

equipped) and move the remote control

lever quickly and firmly from neutral to

forward.

EMU27784

Reverse (automatic reverse lock and

power trim and tilt models)

WARNING

EWM00190

When operating in reverse, go slowly. Do

not open the throttle more than half. Oth-

erwise the boat could become unstable,

which could result in loss of control and

an accident.

Tiller control models

1. Place the throttle grip in the fully closed

position.

2. Move the gear shift lever quickly and

firmly from neutral to reverse.

Remote control models

1. Pull up the neutral interlock trigger (if

equipped) and move the remote control

lever quickly and firmly from neutral to

reverse.

ZMU04597

Operation

EMU27820

Stopping engine

Before stopping the engine, first let it cool off

for a few minutes at idle or low speed. Stop-

ping the engine immediately after operating

at high speed is not recommended.

EMU27844

Procedure

1. Push and hold the engine stop button or

turn the main switch to “ ” (off).

2. After stopping the engine, disconnect

the fuel line if there is a fuel joint on the

outboard motor.

3. Tighten the air vent screw on the fuel

tank cap (if equipped).

4. Remove the key if the boat will be left

unattended.

NOTE:

The engine can also be stopped by pulling

the lanyard and removing the lock plate from

the engine stop switch, then turning the main

ZMU04598

OFF

ZMU04600

Operation

switch to “ ” (off).

EMU27861

Trimming outboard motor

The trim angle of the outboard motor helps

determine the position of the bow of the boat

in the water. Correct trim angle will help im-

prove performance and fuel economy while

reducing strain on the engine. Correct trim

angle depends upon the combination of

boat, engine, and propeller. Correct trim is

also affected by variables such as the load in

the boat, sea conditions, and running speed.

WARNING

EWM00740

Excessive trim for the operating condi-

tions (either trim up or trim down) can

cause boat instability and can make

steering the boat more difficult. This in-

creases the possibility of an accident. If

the boat begins to feel unstable or is hard

to steer, slow down and/or readjust the

trim angle. EMU27881

Adjusting trim angle

Power trim and tilt models

WARNING

EWM00750

●Be sure all people are clear of the out-

board motor when adjusting the tilt an-

gle, also be careful not to pinch any

body parts between the drive unit and

clamp bracket.

●Use caution when trying a trim position

for the first time. Increase speed gradu-

ally and watch for any signs of instabil-

ity or control problems. Improper trim

angle can cause loss of control.

●Use the power tilt switch located on the

bottom engine cowling (if equipped)

only when the boat is at a complete

stop with the engine off.

1. Trim operating angle

ZMU04258

Operation

Adjust the outboard motor trim angle using

the power trim and tilt switch.

To raise the bow (trim-out), press the switch

“ ” (up).

To lower the bow (trim-in), press the switch

“ ” (down).

Make test runs with the trim set to different

angles to find the position that works best for

your boat and operating conditions.

NOTE:

To adjust the trim angle while the boat is

moving, use the power trim and tilt switch lo-

cated on the remote control device or tiller

handle, if equipped.

EMU27911

Adjusting boat trim

When the boat is on plane, a bow-up attitude

results in less drag, greater stability and effi-

ciency. This is generally when the keel line of

the boat is up about 3 to 5 degrees. With the

bow up, the boat may have a greater tenden-

cy to steer to one side or the other. Compen-

sate for this as you steer. The trim tab can

also be adjusted to help offset this effect.

When the bow of the boat is down, it is easier

to accelerate from a standing start onto

plane.

1. Power trim and tilt switch

ZMU04601

ZMU04231

1. Power trim and tilt switch

Operation

Bow Up

Too much trim-out puts the bow of the boat

too high in the water. Performance and econ-

omy are decreased because the hull of the

boat is pushing the water and there is more

air drag. Excessive trim-out can also cause

the propeller to ventilate, which reduces per-

formance further, and the boat may “por-

poise” (hop in the water), which could throw

the operator and passengers overboard.

Bow Down

Too much trim-in causes the boat to “ ”plow

through the water, decreasing fuel economy

and making it hard to increase speed. Oper-

ating with excessive trim-in at higher speeds

also makes the boat unstable. Resistance at

the bow is greatly increased, heightening the

danger of bow steering and making opera-“ ”

tion difficult and dangerous.

NOTE:

Depending on the type of boat, the outboard

motor trim angle may have little effect on the

trim of the boat when operating.

EMU27933

Tilting up and down

If the engine will be stopped for some time or

if the boat is moored in shallows, the out-

board motor should be tilted up to protect the

propeller and casing from damage by colli-

sion with obstructions, and also to reduce

salt corrosion.

WARNING

EWM00220

Be sure all people are clear of the out-

board motor when tilting up and down,

also be careful not to pinch any body

parts between the drive unit and engine

bracket.

WARNING

EWM00250

Leaking fuel is a fire hazard. If there is a

fuel joint on the outboard motor, discon-

nect the fuel line or close the fuel cock if

the engine will be tilted for more than a

few minutes. Otherwise fuel may leak.

CAUTION:

ECM00241

●Before tilting the outboard motor, stop

the engine by following the procedure

Operation

on page 40. Never tilt the outboard mo-

tor while the engine is running. Severe

damage from overheating can result.

●Do not tilt up the engine by pushing the

tiller handle (if equipped) because this

could break the handle.

EMU28005

Procedure for tilting up

Power trim and tilt models / power tilt models

1. Place the remote control lever / the gear

shift lever in neutral.

2. Disconnect the fuel line from the out-

board motor or close the fuel cock.

3. Press the power trim and tilt switch /

power tilt switch “ ” (up) until the out-

board motor has tilted up completely.

ZMU03196

ZMU04588

ZMU04602

ZMU04232

Operation

4. Push the tilt support knob into the clamp

bracket or pull the tilt support lever to-

ward you to support the engine.

WARNING

EWM00260

After tilting the outboard motor, be sure

to support it with the tilt support knob or

tilt support lever. Otherwise the outboard

motor could fall back down suddenly if oil

in the power trim and tilt unit loses pres-

sure.

5. Models equipped with trim rods: Once

the outboard motor is supported with the

tilt support lever, press the power trim

and tilt switch “ ” (down) to retract the

trim rods.

CAUTION:

ECM00250

Be sure to retract the trim rods complete-

ly during mooring. This protects the rods

from marine growth and corrosion which

could damage the power trim and tilt

mechanism.

EMU28053

Procedure for tilting down

Power trim and tilt models / power tilt models

1. Push the power tilt / power trim and tilt

switch “ ” (up) until the outboard motor

is supported by the tilt rod and the tilt

support lever / tilt support knob becomes

free.

2. Release the tilt support lever or pull out

the tilt support knob.

3. Push the power tilt / power trim and tilt

switch “ ” (down) to lower the outboard

motor to the desired position.

ZMU03449

ZMU03452

ZMU03453

Operation

2. Slightly tilt the outboard motor up to the

desired position using the power trim / tilt

switch.

3. To return the outboard motor to the nor-

mal running position, press the power

trim / tilt switch and slowly tilt the out-

board motor down.

EMU28191

Cruising in other conditions

Cruising in salt water

After operating in salt water, wash out the

cooling water passages with fresh water to

prevent them from becoming clogged with

salt deposits.

ZMU04588

ZMU01935

ZMU04602

ZMU04235

Operation

NOTE:

For cooling system flushing instructions, see

page 50.

Cruising in turbid water

Yamaha strongly recommends that you use

the optional chromium-plated water pump kit

(not available for some models) if you use

the outboard motor in turbid (muddy) water

conditions.

Maintenance

EMU28217

Specifications

Dimension:

Overall length:

825 mm (32.5 in)

Overall width:

498 mm (19.6 in)

Overall height L:

F115TR 1609 mm (63.3 in)

Overall height X:

1736 mm (68.3 in)

Transom height L:

F115TR 516 mm (20.3 in)

Transom height X:

643 mm (25.3 in)

Weight (without propeller) L:

F115TR 183.0 kg (403 lb)

Weight (without propeller) X:

188.0 kg (414 lb)

Performance:

Full throttle operating range:

5000 6000 r/min–

Maximum output:

84.6 kW@5500 r/min (115 HP@5500

r/min)

Idling speed (in neutral):

750 ±50 r/min

Engine:

Type:

4-stroke L

Displacement:

1741.0 cm3 (106.24 cu.in)

Bore × stroke:

79.0 × 88.8 mm (3.11 × 3.50 in)

Ignition system:

TCI

Spark plug (NGK):

LFR6A-11

Spark plug gap:

1.0 1.1 mm (0.039 0.043 in)– –

Control system:

Remote control

Starting system:

Electric

Starting carburetion system:

Electronic fuel injection

Valve clearance (cold engine) IN:

0.17 0.23 mm (0.0067 0.0091 in)– –

Valve clearance (cold engine) EX:

0.31 0.37 mm (0.0122 0.0146 in)– –

Min. cold cranking amps (CCA/SAE):

380.0 A

Min. marine cranking amps (MCA/ABYC):

502.0 A

Min. reserve capacity (RC/SAE):

124 minutes

Alternator output for battery DC:

25.0 A

Drive unit:

Gear positions:

Forward-neutral-reverse

Gear ratio:

2.15 (28/13)

Trim and tilt system:

Power trim and tilt

Propeller mark:

F115TR K

LF115TR KL

Fuel and oil:

Recommended fuel:

Regular unleaded gasoline

Min. pump octane:

Recommended engine oil:

4-stroke outboard motor oil

Engine oil grade API:

API SE, SF, SG, SH, SJ, SL

Engine oil type SAE:

SAE10W30 or SAE10W40

Lubrication:

Wet sump

Engine oil quantity (excluding oil filter):

Maintenance

4.3 L (4.55 US qt) (3.78 Imp.qt)

Recommended gear oil:

Hypoid gear oil SAE#90

Gear oil quantity:

F115TR 760.0 cm3 (25.70 US oz)

(26.81 Imp.oz)

LF115TR 715.0 cm

3 (24.17 US oz)

(25.22 Imp.oz)

Tightening torque for engine:

Spark plug:

25.0 Nm (18.4 ft-lb) (2.55 kgf-m)

Propeller nut:

55.0 Nm (40.6 ft-lb) (5.61 kgf-m)

Engine oil drain bolt:

28.0 Nm (20.7 ft-lb) (2.86 kgf-m)

Engine oil filter:

18.0 Nm (13.3 ft-lb) (1.84 kgf-m)

EMU28222

Transporting and storing

outboard motor

WARNING

EWM00690

●Leaking fuel is a fire hazard. When

transporting and storing the outboard

motor, close the air vent screw and fuel

cock to prevent fuel from leaking.

●USE CARE when transporting fuel tank,

whether in a boat or car.

●DO NOT fill fuel container to maximum

capacity. Gasoline will expand consid-

erably as it warms up and can build up

pressure in the fuel container. This can

cause fuel leakage and a potential fire

hazard.

WARNING

EWM00700

Never get under the lower unit while it is

tilted, even if a motor support bar is used.

Severe injury could occur if the outboard

motor accidentally falls.

CAUTION:

ECM00660

Do not use the tilt support lever or knob

when trailering the boat. The outboard

motor could shake loose from the tilt sup-

port and fall. If the motor cannot be trail-

ered in the normal running position, use

an additional support device to secure it

in the tilt position.

The outboard motor should be trailered and

stored in the normal running position. If there

is insufficient road clearance in this position,

then trailer the outboard motor in the tilt po-

sition using a motor support device such as

a transom saver bar. Consult your Yamaha

dealer for further details.

EMU28280

Storing outboard motor

When storing your Yamaha outboard motor

for prolonged periods of time (2 months or

longer), several important procedures must

be performed to prevent excessive damage.

It is advisable to have your outboard motor

serviced by an authorized Yamaha dealer

prior to storage. However, you, the owner,

with a minimum of tools, can perform the fol-

ZMU03659

Maintenance

lowing procedures.

CAUTION:

ECM01080

●To prevent problems which can be

caused by oil entering the cylinder from

the sump, keep the outboard motor in

the attitude shown when transporting

and storing it. If storing or transporting

the outboard motor on its side (not up-

right), put it on a cushion after draining

the engine oil.

●Do not place the outboard motor on its

side before the cooling water has

drained from it completely, otherwise

water may enter the cylinder through

the exhaust port and cause engine trou-

ble.

●Store the outboard motor in a dry, well-

ventilated place, not in direct sunlight.

EMU28301

Procedure

EMU28380

Flushing with the flushing attachment

1. Wash the outboard motor body using

fresh water. For further information, see

page 54.

2. Fill the fuel tank with fresh fuel and add

one ounce of Yamaha Fuel Conditioner“

and Stabilizer (Part No. LUB-FUELC-”

12-00) to each gallon of fuel.

NOTE:

The use of Yamaha Fuel Conditioner and“

Stabilizer” eliminates the need to drain the

fuel system. Consult your Yamaha dealer or

other qualified mechanic if the fuel system is

to be drained instead.

3. Remove the top cowling and silencer

cover/cap. Remove the propeller.

4. Install the flushing attachment over the

cooling water inlet.

CAUTION:

ECM00300

Do not run the engine without supplying

it with cooling water. Either the engine

water pump will be damaged or the en-

gine will be damaged from overheating.

Before starting the engine, be sure to

supply water to the cooling water passag-

es.

CAUTION:

ECM00310

Avoid running the outboard motor at high

speed while on the flushing attachment,

otherwise overheating could occur.

5. Cooling system flushing is essential to

prevent the cooling system from clog-

ging up with salt, sand, or dirt. In addi-

tion, fogging/lubricating of the engine is

mandatory to prevent excessive engine

damage due to rust. Perform the flush-

ing and fogging at the same time.

WARNING

EWM00090

●Do not touch or remove electrical parts

when starting or during operation.

●Keep hands, hair, and clothes away

from the flywheel and other rotating

1. Flushing attachment

Maintenance

equipment, lighted cigarettes, and so

on.)

●DO NOT SMOKE when charging or han-

dling batteries.

KEEP BATTERIES AND ELECTROLYTIC

FLUID OUT OF REACH OF CHILDREN.

Batteries vary among manufacturers. There-

fore the following procedures may not al-

ways apply. Consult your battery

manufacturer s instructions.’

Procedure

1. Disconnect and remove the battery from

the boat. Always disconnect the black

negative cable first to prevent the risk of

shorting.

2. Clean the battery casing and terminals.

Fill each cell to the upper level with dis-

tilled water.

3. Store the battery on a level surface in a

cool, dry, well-ventilated place out of di-

rect sunlight.

4. Once a month, check the specific gravity

of the electrolyte and recharge as re-

quired to prolong battery life.

EMU28441

Flushing power unit

Perform this procedure right after operation

for the most thorough flushing.

CAUTION:

ECM01530

Do not perform this procedure while the

engine is running. The water pump may

be damaged and severe damage from

overheating can result.

1. After shutting off the engine, unscrew

the garden hose connector from the fit-

ting on the bottom cowling.

2. Screw the garden hose connector onto a

garden hose which is connected to a

fresh water supply.

3. With the engine off, turn on the water tap

and let the water flush through the cool-

ing passages for about 15 minutes. Turn

off the water and disconnect the garden

hose.

4. When flushing is complete, reinstall the

garden hose connector on the fitting on

the bottom cowling. Tighten the connec-

tor securely.

CAUTION:

ECM00540

Do not leave the garden hose connector

loose on the bottom cowling fitting or let

the hose hang free during normal opera-

tion. Water will leak out of the connector

1. Fitting

2. Garden hose connector

3. Garden hose

ZMU04264

Maintenance

instead of cooling the engine, which can

cause serious overheating. Be sure the

connector is tightened securely on the fit-

ting after flushing the engine.

NOTE:

●When flushing the engine with the boat in

the water, tilting up the outboard motor un-

til it is completely out of the water will

achieve better results.

●For cooling system flushing instructions,

see page 50.

EMU28450

Cleaning the outboard motor

After use, wash the exterior of the outboard

motor with fresh water. Flush the cooling

system with fresh water.

NOTE:

For cooling system flushing instructions, see

page 50.

EMU28460

Checking painted surface of motor

Check the motor for scratches, nicks, or flak-

ing paint. Areas with damaged paint are

more likely to corrode. If necessary, clean

and paint the areas. A touch-up paint is avail-

able from your Yamaha dealer.

EMU28486

Periodic maintenance

WARNING

EWM01070

Be sure to turn off the engine when you

perform maintenance unless otherwise

specified. If you or the owner is not famil-

iar with machine servicing, this work

should be done by your Yamaha dealer or

other qualified mechanic.

Maintenance, replacement, or repair of

the emission control devices and sys-

tems may be performed by any marine

engine repair establishment or individual.

All warranty repairs, however, including

those to the emission control system,

must be performed by an authorized

Yamaha marine dealership.

A service manual is available for purchase

through your Yamaha dealer for owners who

have the mechanical skills, tools, and other

equipment necessary to perform mainte-

nance not covered by this owner s manual.’

EMU28510

Replacement parts

If replacement parts are necessary, use only

genuine Yamaha parts or parts of the same

type and of equivalent strength and materi-

als. Any part of inferior quality may malfunc-

tion, and the resulting loss of control could

endanger the operator and passengers.

Yamaha genuine parts and accessories are

available from your Yamaha dealer.

ZMU04265

Maintenance

EMU30562

Maintenance chart

NOTE:

●Refer to the sections in this chapter for explanations of each owner-specific action.

●The maintenance cycle on these charts assume usage of 200 hours per year and regular

flushing of the cooling water passages. Maintenance frequency should be adjusted ac-

cording to usage conditions.

●Disassembly or repairs may be necessary depending on the outcome of maintenance

checks.

●Expendable or consumable parts and lubricants will lose their effectiveness over time and

through normal usage regardless of the warranty period.

●When operating in salt water, turbid or muddy water, the engine should be flushed with

clean water after each use.

The “ ” symbol indicates the check-ups which you may carry out yourself.

The “ ” symbol indicates work to be carried out by your Yamaha dealer.

Item Actions

Initial Every

10 hours

(1 month)

50 hours

months)

100

hours (6

months)

200

hours (1

year)

Anode(s) (external) Inspection / replace-

ment

Anode(s) (cylinder

head, thermostat

cover)

Inspection / replace-

ment

Battery Inspection / charging

Cooling water pas-

sages Cleaning

Cowling clamp Inspection

Fuel lter (can be dis-ﬁ

assembled) Inspection / cleaning

Fuel system Inspection

Gear oil Change

Greasing points Greasing

Idling speed (EFI mod-

els) Inspection

PCV (Pressure Con-

trol Valve) Inspection

Power trim and tilt unit Inspection

Propeller and cotter pin Inspection / replace-

ment

Maintenance

EMU28874

Maintenance chart (additional)

EMU28910

NOTE:

When using lead or high-sulfur gasoline, inspecting valve clearance may be required more

frequently than every 500 hours.

Shift link / shift cable Inspection / adjustment

Thermostat Inspection / replace-

ment

Throttle link / throttle

cable / throttle pick-up

timing

Inspection / adjustment

Water pump Inspection / replace-

ment

Engine oil Inspection / change

Oil lter (cartridge) Changeﬁ

Spark plug(s) Cleaning / adjustment /

replacement

Timing belt Inspection / replace-

ment

Item Actions Every

500 hours (2.5 years) 1000 hours (5 years)

Timing belt Replacement

Valve clearance

(DOHC) Inspection / adjustment

Anode(s) (exhaust

cover, cover joint) Replacement

Exhaust guide, exhaust

manifold

Inspection / replace-

ment

Item Actions

Initial Every

10 hours

(1 month)

50 hours

months)

100

hours (6

months)

200

hours (1

year)

Maintenance

When fitting the plug, always clean the gas-

ket surface and use a new gasket. Wipe off

any dirt from the threads and screw in the

spark plug to the correct torque.

NOTE:

If a torque-wrench is not available when you

are fitting a spark plug, a good estimate of

the correct torque is 1/4 to 1/2 a turn past fin-

ger-tight. Have the spark plug adjusted to the

correct torque as soon as possible with a

torque-wrench.

EMU28962

Checking fuel system

WARNING

EWM00060

Gasoline and its vapors are highly flam-

mable and explosive. Keep away from

sparks, cigarettes, flames, or other

sources of ignition.

WARNING

EWM00910

Leaking fuel can result in fire or explo-

sion.

●Check for fuel leakage regularly.

●If any fuel leakage is found, the fuel

system must be repaired by a qualified

mechanic. Improper repairs can make

the outboard unsafe to operate.

Check the fuel lines for leaks, crack, or mal-

function. If a problem is found, your Yamaha

dealer or other qualified mechanic should re-

pair it immediately.

Checkpoints

●Fuel system parts leakage

●Fuel line joint leakage

●Fuel line cracks or other damage

●Fuel connector leakage

1. Spark plug gap

2. Spark plug I.D. mark (NGK)

Spark plug gap:

1.0 1.1 mm (0.039 0.043 in)– –

Spark plug torque:

25.0 Nm (18.4 ft-lb) (2.55 kgf-m)

ZMU04267

Maintenance

EMU28980

Inspecting fuel filter

WARNING

EWM00310

Gasoline is highly flammable, and its va-

pors are flammable and explosive.

●If you have any question about properly

doing this procedure, consult your

Yamaha dealer.

●Do not perform this procedure on a hot

or running engine. Allow the engine to

cool.

●There will be fuel in the fuel filter. Keep

away from sparks, cigarettes, flames or

other sources of ignition.

●This procedure will allow some fuel to

spill. Catch fuel in a rag. Wipe up any

spilled fuel immediately.

●The fuel filter must be reassembled

carefully with the O-ring, filter cup, and

hoses in place. Improper assembly or

replacement could result in a fuel leak,

which could result in a fire or explosion

hazard.

EMU29021

Cleaning fuel filter

NOTE:

If any water is in the fuel, the float will rise. If

so, remove the cup and drain the water.

1. Remove the nut holding the fuel filter as-

sembly if so equipped.

2. Unscrew the filter cup, catching any

spilled fuel in a rag.

3. Remove the filter element, and wash it in

solvent. Allow it to dry. Inspect the filter

element and O-ring to make sure they

are in good condition. Replace them if

necessary. If any water is found in the

fuel, the Yamaha portable fuel tank or

other fuel tanks should be checked and

cleaned.

4. Reinstall the filter element in the cup.

Make sure the O-ring is in proper posi-

tion in the cup. Firmly screw the cup onto

the filter housing.

5. Attach the filter assembly to the bracket.

6. Run the engine and check the filter and

lines for leaks.

EMU29041

Inspecting idling speed

WARNING

EWM00451

●Do not touch or remove electrical parts

when starting or during operation.

●Keep hands, hair, and clothes away

from the flywheel and other rotating

ZMU04268

1. Filter cup

2. Filter element

3. O-ring

4. Filter housing

5. Float

ZMU04269

Maintenance

7. Dispose of used oil according to local

regulations.

NOTE:

●For more information on the disposal of

used oil, consult your Yamaha dealer.

●Change the oil more often when operating

the engine under adverse conditions such

as extended trolling.

EMU29112

Checking wiring and connectors

●Check that each grounding wire is properly

secured.

●Check that each connector is engaged se-

curely.

EMU29120

Exhaust leakage

Start the engine and check that no exhaust

leaks from the joints between the exhaust

cover, cylinder head, and body cylinder.

EMU29130

Water leakage

Start the engine and check that no water

leaks from the joints between the exhaust

cover, cylinder head, and body cylinder.

EMU29140

Engine oil leakage

Check for oil leaks on the around the engine.

NOTE:

If any leaks are found, consult your Yamaha

dealer.

EMU29153

Checking power trim and tilt system

WARNING

EWM00430

●Never get under the lower unit while it

is tilted, even when the tilt support lever

is locked. Severe injury could occur if

the outboard motor accidentally falls.

●Make sure no one is under the outboard

motor before performing this test.

1. Check the power trim and tilt unit for any

sign of oil leaks.

2. Operate each of the power trim and tilt

switches on the remote control and en-

gine bottom cowling (if equipped) to

check that all switches work.

3. Tilt the outboard motor up and check

that the tilt rod and trim rods are extend-

ed completely.

ZMU02058

ZMU04286

1. Tilt rod

ZMU02633

Maintenance

4. Use the tilt support lever to lock the mo-

tor in the up position. Operate the tilt

down switch briefly so the motor is sup-

ported by the tilt support lever.

5. Check that the tilt rod and trim rods are

free of corrosion or other flaws.

6. Activate the tilt-down switch until the trim

rods have retracted completely into the

cylinders.

7. Activate the trim-up switch until the tilt

rod is fully extended. Unlock the tilt sup-

port lever.

8. Tilt the outboard motor down. Check

that the tilt rod and trim rods operate

smoothly.

NOTE:

Consult your Yamaha dealer if any operation

is abnormal.

EMU29171

Checking propeller

WARNING

EWM00321

You could be seriously injured if the en-

gine accidentally starts when you are

near the propeller.

●Before inspecting, removing, or install-

ing the propeller, remove the spark

plug caps from the spark plugs. Also,

place the shift control in neutral, turn

the main switch to “ ” (off) and re-

move the key, and remove the lanyard

from the engine stop switch. Turn off

the battery cut-off switch if your boat

has one.

●Do not use your hand to hold the pro-

peller when loosening or tightening the

propeller nut. Put a wood block be-

tween the anti-cavitation plate and the

propeller to prevent the propeller from

turning.

2. Trim rods

3. Tilt support lever

1. Tilt support lever

ZMU02634

ZMU02635

ZMU04262

Maintenance

Checkpoints

●Check each of the propeller blades for

wear, erosion from cavitation or ventila-

tion, or other damage.

●Check the propeller shaft for damage.

●Check the splines / shear pin for wear or

damage.

●Check for fish line tangled around the pro-

peller shaft.

●Check the propeller shaft oil seal for dam-

age.

NOTE:

If the shear pin equipped: it is designed to

break if the propeller hits a hard underwater

obstacle to help protect the propeller and

drive mechanism. The propeller will then

spin freely on the shaft. If this happens, the

shear pin must be replaced.

EMU30660

Removing the propeller

EMU29194

Spline models

1. Straighten the cotter pin and pull it out

using a pair of pliers.

2. Remove the propeller nut, washer, and

spacer (if equipped).

3. Remove the propeller and thrust wash-

er.

EMU30670

Installing the Propeller

EMU29241

Spline models

WARNING

EWM00770

On counter rotation models, be sure to

use a propeller intended for counter-

clockwise rotation. These propellers are

identified with the letter “ ”L after the size

indication on the propeller. Otherwise the

boat could move in the opposite direction

ZMU01897

1. Cotter pin

2. Propeller nut

3. Washer

4. Spacer

5. Propeller

6. Thrust washer

Maintenance

from that expected.

CAUTION:

ECM00340

●Be sure to install the thrust washer be-

fore installing the propeller, otherwise

the lower case and propeller boss

could be damaged.

●Be sure to use a new cotter pin and

bend the ends over securely. Otherwise

the propeller could come off during op-

eration and be lost.

1. Apply Yamaha marine grease or a cor-

rosion resistant grease to the propeller

shaft.

2. Install the thrust washer and propeller

on the propeller shaft.

3. Install the spacer and washer. Tighten

the propeller nut to the specified torque.

4. Align the propeller nut with the propeller

shaft hole. Insert a new cotter pin in the

hole and bend the cotter pin ends.

NOTE:

If the propeller nut does not align with the

propeller shaft hole after tightening to the

specified torque, tighten the nut further to

align it with the hole.

EMU29281

Changing gear oil

WARNING

EWM00800

●Be sure the outboard motor is securely

fastened to the transom or a stable

stand. You could be severely injured if

the outboard motor falls on you.

●Never get under the lower unit while it

is tilted, even when the tilt support lever

or knob is locked. Severe injury could

occur if the outboard motor accidental-

ly falls.

1. Tilt the outboard motor so that the gear

oil drain screw is at the lowest point pos-

sible.

2. Place a suitable container under the

gear case.

3. Remove the gear oil drain screw.

NOTE:

If the magnetic gear oil drain screw

equipped: remove all metal particles from

the screw before installing it.

4. Remove the oil level plug to allow the oil

1. Gear oil drain screw

2. Oil level plug

ZMU03273

Maintenance

to drain completely.

CAUTION:

ECM00710

Inspect the used oil after it has been

drained. If the oil is milky, water is getting

into the gear case which can cause gear

damage. Consult a Yamaha dealer for re-

pair of the lower unit seals.

NOTE:

For disposal of used oil consult your Yamaha

dealer.

5. With the outboard motor in a vertical po-

sition, and using a flexible or pressur-

ized filling device, inject the gear oil into

the gear oil drain screw hole.

6. When the oil begins to flow out of the oil

level plug hole, insert and tighten the oil

level plug.

7. Insert and tighten the gear oil drain

screw.

EMU29312

Inspecting and replacing anode(s)

Yamaha outboard motors are protected from

corrosion by sacrificial anodes. Inspect the

external anodes periodically. Remove scales

from the surfaces of the anodes. Consult a

Yamaha dealer for replacement of external

anodes.

CAUTION:

ECM00720

Do not paint anodes, as this would render

them ineffective.

NOTE:

Inspect ground leads attached to external

anodes on equipped models. Consult a

Yamaha dealer for inspection and replace-

ment of internal anodes attached to the pow-

er unit.

Recommended gear oil:

Hypoid gear oil SAE#90

Gear oil quantity:

F115TR 760.0 cm3 (25.70 US oz)

(26.81 Imp.oz)

LF115TR 715.0 cm

3 (24.17 US oz)

(25.22 Imp.oz)

ZMU03274

ZMU01901

ZMU04008

Maintenance

EMU29320

Checking battery (for electric start

models)

WARNING

EWM00330

Battery electrolytic fluid is dangerous; it

contains sulfuric acid and therefore is

poisonous and highly caustic.

Always follow these preventive mea-

sures:

●Avoid bodily contact with electrolytic

fluid as it can cause severe burns or

permanent eye injury.

●Wear protective eye gear when han-

dling or working near batteries.

Antidote (EXTERNAL):

●SKIN - Flush with water.

●EYES - Flush with water for 15 minutes

and get immediate medical attention.

Antidote (INTERNAL):

●Drink large quantities of water or milk

followed by milk of magnesia, beaten

egg, or vegetable oil. Get immediate

medical attention.

Batteries also generate explosive hydro-

gen gas; therefore, you should always

follow these preventive measures:

●Charge batteries in a well-ventilated ar-

ea.

●Keep batteries away from fire, sparks,

or open flames (for example: welding

equipment, lighted cigarettes, and so

on.)

●DO NOT SMOKE when charging or han-

dling batteries.

KEEP BATTERIES AND ELECTROLYTIC

FLUID OUT OF REACH OF CHILDREN.

CAUTION:

ECM00360

●A poorly maintained battery will quickly

deteriorate.

●Ordinary tap water contains minerals

harmful to a battery, and should not be

used for topping up.

1. Check the electrolyte level at least once

a month. Fill to the manufacturer s rec-’

ommended level when necessary. Top

up only with distilled water (or pure de-

ionized water suitable to use in batter-

ies).

2. Always keep the battery in a good state

of charge. Installing a voltmeter will help

you monitor your battery. If you will not

use the boat for a month or more, re-

move the battery from the boat and store

it in a cool, dark place. Completely re-

charge the battery before using it.

3. If the battery will be stored for longer

than a month, check the specific gravity

of the fluid at least once a month and re-

charge the battery when it is low.

NOTE:

Consult a Yamaha dealer when charging or

re-charging batteries.

EMU29331

Connecting the battery

WARNING

EWM00570

Mount the battery holder securely in a

dry, well-ventilated, vibration-free loca-

Maintenance

tion in the boat. Install a fully charged bat-

tery in the holder.

CAUTION:

ECM01121

●Make sure the main switch (on applica-

ble models) is “ ” (off) before work-

ing on the battery.

●Reversal of the battery cables will dam-

age the electrical parts.

●Connect the red battery cable first

when installing the battery and discon-

nect the black battery cable first when

removing it. Otherwise, the electrical

parts can be damaged.

●The electrical contacts of the battery

and cables must be clean and properly

connected, or the battery will not start

the engine.

Connect the red battery cable to the POSI-

TIVE (+) terminal first. Then connect the

black battery cable to the NEGATIVE (-) ter-

minal.

EMU29370

Disconnecting the battery

Disconnect the BLACK cable from the NEG-

ATIVE (-) terminal first. Then disconnect the

RED cable from the POSITIVE (+) terminal.

EMU29390

Checking top cowling

Check the fitting of the top cowling by push-

ing it with both hands. If it is loose have it re-

paired by your Yamaha dealer.

EMU29400

Coating the boat bottom

A clean hull improves boat performance. The

boat bottom should be kept as clean of ma-

rine growth as possible. If necessary, the

boat bottom can be coated with an anti-foul-

ing paint approved for your area to inhibit

marine growth.

Do not use anti-fouling paint which includes

copper or graphite. These paints can cause

more rapid engine corrosion.

1. Red cable

2. Black cable

3. Battery

ZMU04246

Trouble Recovery

Q. Is fuel system obstructed?

A. Check for pinched or kinked fuel line or

other obstructions in fuel system.

Q. Is fuel contaminated or stale?

A. Fill tank with clean, fresh fuel.

Q. Is fuel filter clogged?

A. Clean or replace filter.

Q. Have ignition parts failed?

A. Have serviced by a Yamaha dealer.

Q. Has warning system activated?

A. Find and correct cause of warning.

Q. Is spark plug gap incorrect?

A. Inspect and adjust as specified.

Q. Is ignition wiring damaged or poorly con-

nected?

A. Check wires for wear or breaks. Tighten

all loose connections. Replace worn or bro-

ken wires.

Q. Is specified engine oil not being used?

A. Check and replace oil as specified.

Q. Is thermostat faulty or clogged?

A. Have serviced by a Yamaha dealer.

Q. Are carburetor adjustments incorrect?

A. Have serviced by a Yamaha dealer.

Q. Is fuel pump damaged?

A. Have serviced by a Yamaha dealer.

Q. Is air vent screw on fuel tank closed?

A. Open air vent screw.

Q. Is choke knob pulled out?

A. Return to home position.

Q. Is motor angle too high?

A. Return to normal operating position.

Q. Is carburetor clogged?

A. Have serviced by a Yamaha dealer.

Q. Is fuel joint connection incorrect?

A. Connect correctly.

Q. Is throttle valve adjustment incorrect?

A. Have serviced by a Yamaha dealer.

Q. Is battery cable disconnected?

A. Connect securely.

Warning buzzer sounds or indicator

lights.

Q. Is cooling system clogged?

A. Check water intake for restriction.

Q. Is engine oil level low?

A. Fill oil tank with specified engine oil.

Q. Is heat range of spark plug incorrect?

A. Inspect spark plug and replace it with rec-

ommended type.

Q. Is specified engine oil not being used?

A. Check and replace oil with specified type.

Q. Is engine oil contaminated or deteriorat-

ed?

A. Replace oil with fresh, specified type.

Q. Is oil filter clogged?

A. Have serviced by a Yamaha dealer.

Q. Has oil feed/injection pump malfunc-

tioned?

Trouble Recovery

A. Have serviced by a Yamaha dealer.

Q. Is load on boat improperly distributed?

A. Distribute load to place boat on an even

plane.

Q. Is water pump or thermostat faulty?

A. Have serviced by a Yamaha dealer.

Q. Is there excess water in fuel filter cup?

A. Drain filter cup.

Engine power loss.

Q. Is propeller damaged?

A. Have propeller repaired or replaced.

Q. Is propeller pitch or diameter incorrect?

A. Install correct propeller to operate out-

board at its recommended speed (r/min)

range.

Q. Is trim angle incorrect?

A. Adjust trim angle to achieve most efficient

operation.

Q. Is motor mounted at incorrect height on

transom?

A. Have motor adjusted to proper transom

height.

Q. Has warning system activated?

A. Find and correct cause of warning.

Q. Is boat bottom fouled with marine growth?

A. Clean boat bottom.

Q. Are spark plug(s) fouled or of incorrect

type?

A. Inspect spark plug(s). Clean or replace

with recommended type.

Q. Are weeds or other foreign matter tangled

on gear housing?

A. Remove foreign matter and clean lower

unit.

Q. Is fuel system obstructed?

A. Check for pinched or kinked fuel line or

other obstructions in fuel system.

Q. Is fuel filter clogged?

A. Clean or replace filter.

Q. Is fuel contaminated or stale?

A. Fill tank with clean, fresh fuel.

Q. Is spark plug gap incorrect?

A. Inspect and adjust as specified.

Q. Is ignition wiring damaged or poorly con-

nected?

A. Check wires for wear or breaks. Tighten

all loose connections. Replace worn or bro-

ken wires.

Q. Have electrical parts failed?

A. Have serviced by a Yamaha dealer.

Q. Is specified fuel not being used?

A. Replace fuel with specified type.

Q. Is specified engine oil not being used?

A. Check and replace oil with specified type.

Q. Is thermostat faulty or clogged?

A. Have serviced by a Yamaha dealer.

Q. Is air vent screw closed?

A. Open the air vent screw.

Q. Is fuel pump damaged?

A. Have serviced by a Yamaha dealer.

Trouble Recovery

Q. Is fuel joint connection incorrect?

A. Connect correctly.

Q. Is heat range of spark plug incorrect?

A. Inspect spark plug and replace it with rec-

ommended type.

Q. Is high pressure fuel pump drive belt bro-

ken?

A. Have serviced by a Yamaha dealer.

Q. Is engine not responding properly to shift

lever position?

A. Have serviced by a Yamaha dealer.

Engine vibrates excessively.

Q. Is propeller damaged?

A. Have propeller repaired or replaced.

Q. Is propeller shaft damaged?

A. Have serviced by a Yamaha dealer.

Q. Are weeds or other foreign matter tangled

on propeller?

A. Remove and clean propeller.

Q. Is motor mounting bolt loose?

A. Tighten bolt.

Q. Is steering pivot loose or damaged?

A. Tighten or have serviced by a Yamaha

dealer.

EMU29432

Temporary action in

emergency

EMU29440

Impact damage

WARNING

EWM00870

The outboard motor can be seriously

damaged by a collision while operating or

trailering. Damage could make the out-

board motor unsafe to operate.

If the outboard motor hits an object in the wa-

ter, follow the procedure below.

1. Stop the engine immediately.

2. Inspect the control system and all com-

ponents for damage. Also inspect the

boat for damage.

3. Whether damage is found or not, return

to the nearest harbor slowly and careful-

ly.

4. Have a Yamaha dealer inspect the out-

board motor before operating it again.

EMU29450

Running single engine

When using only engine in an emergency, be

sure to keep the unused one tilted up and op-

erate the other engine at low speed.

CAUTION:

ECM00370

If the boat is operated with one engine in

the water but not running, water may run

into the exhaust pipe due to wave action,

causing engine trouble.

NOTE:

When you are maneuvering at low speed,

such as near a dock, it is recommended that

both engines be running with one in neutral

gear if possible.

Trouble Recovery

EMU29480

Replacing fuse

If the fuse has blown on an electric start

model, remove the electrical cover, open the

fuse holder, and replace the fuse with a new

one of the proper amperage.

WARNING

EWM00630

Be sure to use the specified fuse. An in-

correct fuse or a piece of wire could allow

excessive current flow. This could cause

electric system damage and a fire hazard.

NOTE:

Consult your Yamaha dealer if the new fuse

immediately blows again.

EMU29522

Power trim and tilt / power tilt will not

operate

If the engine cannot be tilted up or down with

1. Electrical cover

2. Fuse holder

3. Fuse (20 A×2, 30 A×2)

4. Spare fuse (20 A, 30 A)

5. Fuse puller

1. Fuse puller

ZMU04279

ZMU04280

Produktspecifikationer

Varumärke:	Yamaha
Kategori:	Utombordsmotor
Modell:	LF115

Behöver du hjälp?

Om du behöver hjälp med Yamaha LF115 ställ en fråga nedan och andra användare kommer att svara dig

Ditt namn*

Din e-post*

Skriv din fråga här

Utombordsmotor Yamaha Manualer

Yamaha F40H (2024) Bruksanvisning

2 Januari 2025

Yamaha F30 (2024) Bruksanvisning

2 Januari 2025

Yamaha FT50 (2024) Bruksanvisning

2 Januari 2025

Yamaha FL350A (2024) Bruksanvisning

2 Januari 2025

Yamaha XF450 (2024) Bruksanvisning

2 Januari 2025

Yamaha F4 (2024) Bruksanvisning

2 Januari 2025

Yamaha F9.9H (2024) Bruksanvisning

2 Januari 2025

Yamaha M20 (2014) Bruksanvisning

23 September 2024

Yamaha M12 (2012) Bruksanvisning

19 September 2024

Yamaha M12 (2013) Bruksanvisning

8 September 2024

Utombordsmotor Manualer

Nyaste Utombordsmotor Manualer

Tohatsu MFS9.9D Bruksanvisning

8 Januari 2025

Suzuki DF250 Bruksanvisning

30 December 2025

Tohatsu MX15E2 Bruksanvisning

30 December 2025

Torqeedo Travel 1103 CS Bruksanvisning

29 December 2024

Torqeedo Deep Blue 25 R Bruksanvisning

29 December 2024

Rhino BLX 110 Bruksanvisning

27 December 2024

Honda BF40A Bruksanvisning

27 Oktober 2024

Honda BF75 (1986) Bruksanvisning

2 Oktober 2024

Garmin Forerunner 255 Bruksanvisning

2 Oktober 2024

Honda BF2A (1997) Bruksanvisning

28 September 2024