Yamaha FL115 (2022), F115 (2022) User guide

OWNER’S MANUAL
Read this manual carefully before operating this
outboard motor.
F115 LF115 F130
6EK-28199-77-E0
Read this manual carefully before operating this outboard motor. Keep this manual onboard in a waterproof bag when boating. This manual should stay with the outboard motor if it is sold.

Important manual information

TIP:
TIP:
EMU25108
To the owner
Thank you for selecting a Yamaha outboard motor. This Owner’s Manual contains infor­mation needed for proper operation, mainte­nance and care. A thorough understanding of these simple instructions will help you obtain 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.
: This is the safety alert symbol. It is used to alert you to potential personal injury haz­ards. Obey all safety messages that follow this symbol to avoid possible injury or death.
EWM00782
A WARNING indicates a hazardous situa­tion which, if not avoided, could result in death or serious injury.
ECM00702
A NOTICE indicates special precautions that must be taken to avoid damage to the outboard motor or other property.
between your machine and this manual. If there is any question concerning this manual, please consult your Yamaha dealer. To ensure long product life, Yamaha recom­mends that you use the product and perform the specified periodic inspections and main­tenance by correctly following the instruc­tions in the owner’s manual. Any damage resulting from neglect of these instructions is not covered by warranty. Some countries have laws or regulations re­stricting users from taking the product out of the country where it was purchased, and it may be impossible to register the product in the destination country. Additionally, the war­ranty may not apply in certain regions. When planning to take the product to another coun­try, consult the dealer where the product was purchased for further information. If the product was purchased used, please consult your closest dealer for customer re­registration, and to be eligible for the speci­fied services.
The F115B, LF115B, F130A and the standard accessories are used as a base for the expla­nations and illustrations in this manual. Therefore some items may not apply to every model.
EMU25123
A TIP 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 prod­uct information available at the time of print­ing, there may be minor discrepancies
F115, LF115, F130
OWNER’S MANUAL
©2022 by Yamaha Motor Co., Ltd.
1st Edition, November 2021
All rights reserved.
Any reprinting or unauthorized use
without the written permission of
Yamaha Motor Co., Ltd.
is expressly prohibited.
Printed in Japan

Table of contents

Safety information ............................. 1
Outboard motor safety.................... 1
Propeller............................................. 1
Rotating parts..................................... 1
Hot parts ............................................ 1
Electric shock..................................... 1
Power trim and tilt.............................. 1
Engine shut-off cord (lanyard)............ 1
Gasoline ............................................. 2
Gasoline exposure and spills ............. 2
Carbon monoxide .............................. 2
Modifications...................................... 2
Boating safety ................................. 2
Alcohol and drugs.............................. 2
Personal flotation devices (PFDs) ...... 2
People in the water ............................ 2
Passengers......................................... 2
Overloading........................................ 3
Avoid collisions .................................. 3
Collisions with floating or submerged
objects ............................................ 3
Weather.............................................. 4
Passenger training ............................. 4
Boating safety publications................ 4
Laws and regulations......................... 4
General information .......................... 5
Identification numbers record ......... 5
Outboard motor serial number........... 5
Key number........................................ 5
EC Declaration of Conformity
(DoC) ............................................ 5
CE Marking / UKCA Marking .......... 5
Compliance mark label ................... 6
Read manuals and labels ................ 7
Warning labels ................................... 7
Engine data recording ..................... 9
Specifications and requirements... 11
Specifications................................ 11
Installation requirements............... 12
Boat horsepower rating.................... 12
Mounting outboard motor................ 12
Remote control requirements ....... 12
Battery requirements .................... 13
Battery specifications....................... 13
Propeller selection ........................ 13
Counter rotation models .................. 13
Start-in-gear protection ................ 14
Engine oil requirements ................ 14
Fuel requirements ......................... 14
Gasoline ........................................... 14
Muddy or acidic water .................. 15
Anti-fouling paint .......................... 15
Outboard motor disposal
requirements.............................. 15
Emergency equipment.................. 16
Emission control information ........ 16
Star labels ........................................ 16
Components .................................... 18
Components diagram ................... 18
Optional items .................................. 20
Yamaha Security System
(Y-COP/Optional).......................... 20
Remote control box.......................... 21
Remote control lever........................ 21
Neutral interlock trigger.................... 22
Neutral throttle lever......................... 22
Free accelerator ............................... 22
Tiller handle ..................................... 23
Gear shift lever ................................ 23
Throttle grip ..................................... 23
Throttle indicator ............................. 23
Throttle friction adjuster ................... 24
Engine shut-off cord (lanyard) and
clip ................................................ 24
Engine stop button .......................... 25
Main switch ...................................... 26
Steering friction adjuster ................. 26
Power trim and tilt switch on remote
control or tiller handle ................... 27
Power trim and tilt switch on bottom
cowling.......................................... 27
Power trim and tilt switches (twin
binnacle type)................................ 28
Table of contents
Variable trolling RPM switches ........ 28
Trim tab with anode ......................... 28
Tilt support lever for power trim and
tilt model ....................................... 29
Cowling lock lever............................ 29
Flushing device ................................ 30
Fuel filter........................................... 30
Alert indicator .................................. 30
Instruments and indicators ............31
Indicators ..................................... 31
Low oil pressure-alert indicator........ 31
Overheat-alert indicator ................... 31
Digital tachometer ......................... 31
Tachometer ...................................... 31
Trim meter........................................ 32
Hour meter ....................................... 32
Low oil pressure-alert indicator........ 32
Overheat-alert indicator ................... 32
Digital speedometer ...................... 33
Speedometer.................................... 33
Fuel gauge........................................ 33
Trip meter / Clock / Voltmeter.......... 34
Fuel level-alert indicator................... 34
Low battery voltage-alert
indicator........................................ 35
Fuel management meter ............... 35
Fuel flow meter................................. 35
Fuel consumption meter / Fuel
economy meter / Twin engine
speed synchronizer....................... 36
Water separator-alert indicator ........ 37
CL5 Display ................................... 38
6Y8 Multifunction meters .............. 40
Engine control system .................... 43
Alert system .................................. 43
Overheat alert................................... 43
Low oil pressure alert....................... 44
Water separator alert........................ 45
Installation ....................................... 47
Installation ..................................... 47
Mounting the outboard motor.......... 47
Operation ......................................... 49
First-time operation ...................... 49
Fill engine oil..................................... 49
Breaking in engine............................ 49
Getting to know your boat ............... 49
Checks before starting engine...... 50
Fuel level .......................................... 50
Removing top cowling...................... 50
Fuel system ...................................... 50
Controls............................................ 51
Engine shut-off cord (lanyard) .......... 51
Engine oil.......................................... 51
Outboard motor................................ 52
Flushing device ................................ 52
Install cowling................................... 52
Power trim and tilt system................ 53
Battery.............................................. 53
Filling fuel ..................................... 54
Operating engine .......................... 54
Sending fuel ..................................... 54
Starting engine ................................. 55
Checks after starting engine ......... 58
Cooling water ................................... 58
Warming up engine....................... 59
Procedure for warming up engine.... 59
Checks after engine warm up ....... 59
Shifting ............................................. 59
Stop switches................................... 59
Shifting.......................................... 59
Stopping boat ............................... 61
Trolling .......................................... 61
Adjusting trolling speed.................... 61
Stopping engine............................ 62
Procedure......................................... 62
Trimming outboard motor............. 63
Adjusting trim angle (Power trim
and tilt) .......................................... 63
Adjusting boat trim........................... 64
Tilting up and down ...................... 65
Procedure for tilting up (power trim
and tilt models) ............................. 65
Procedure for tilting down................ 67
Table of contents
Shallow water ............................... 68
Cruising in shallow water ................. 68
Cruising in other conditions .......... 69
Maintenance .................................... 70
Transporting and storing outboard
motor.......................................... 70
Storing outboard motor.................... 70
Procedure......................................... 71
Lubrication ....................................... 72
Flushing cooling water passage....... 72
Cleaning the outboard motor........... 73
Checking painted surface of
outboard motor............................. 73
Periodic maintenance ................... 74
Replacement parts........................... 74
Severe operating conditions ............ 74
Maintenance chart 1 ........................ 75
Maintenance chart 2 ........................ 78
Greasing........................................... 79
Inspecting spark plug....................... 80
Inspecting idle speed....................... 82
Changing engine oil.......................... 82
Replacing the engine oil filter........... 84
Why Yamalube ................................. 85
Inspecting wiring and connectors.... 85
Checking propeller........................... 86
Removing propeller.......................... 87
Installing propeller............................ 87
Changing gear oil ............................. 88
Inspecting and replacing anode(s) ... 89 Checking battery (for electric start
models) ......................................... 90
Connecting the battery..................... 90
Disconnecting the battery ................ 91
Power trim and tilt will not
operate.......................................... 97
Water separator-alert is activated
after leaving port........................... 97
Treatment of submerged motor.... 99
INDEX ............................................. 100
Trouble Recovery ............................ 92
Troubleshooting ............................ 92
Temporary action in emergency ... 95
Impact damage ................................ 95
Running single engine (twin
engines) ........................................ 95
Replacing fuse ................................. 96

Safety information

EMU33623
Outboard motor safety
Observe these precautions at all times.
EMU36502
Propeller
People can be injured or killed if they come in contact with the propeller. The propeller can keep moving even when the motor is in neu­tral, and sharp edges of the propeller can cut even when stationary. Stop the engine when a person is in the
water near you.
Keep people out of reach of the propeller,
even when the engine is off.
EMU40272
Rotating parts
Hands, feet, hair, jewelry, clothing, personal flotation device (PFD) straps, etc., can be­come entangled with internal rotating parts of the engine, resulting in serious injury or death. Keep the top cowling in place whenever pos­sible. Do not remove or replace the top cowl­ing with the engine running. Only operate the engine with the top cowling removed according to the specific instruc­tions in the manual. Keep hands, feet, hair, jewelry, clothing, PFD straps, etc., away from any exposed moving parts.
EMU33641
Hot parts
During and after operation, engine parts are hot enough to cause burns. Avoid touching any parts under the top cowling until the en­gine has cooled.
EMU33651
Electric shock
Do not touch any electrical parts while start­ing or operating the engine. They can cause shock or electrocution.
EMU33662
Power trim and tilt
Body parts can be crushed between the mo­tor and the clamp bracket when the motor is trimmed or tilted. Keep body parts out of this area at all times. Be sure no one is in this area before operating the power trim and tilt mechanism. The power trim and tilt switches operate even when the main switch is off. Keep people away from the switches whenever working around the motor. 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.
EMU33672
Engine shut-off cord (lanyard)
Attach the engine shut-off cord so that the engine stops if the operator falls overboard or leaves the helm. This prevents the boat from running away under power and leaving peo­ple stranded, or running over people or ob­jects. Always attach the engine shut-off cord to a secure place on your clothing or your arm or leg while operating. Do not remove it to leave the helm while the boat is moving. Do not at­tach the cord to clothing that could tear loose, or route the cord where it could be­come entangled, preventing it from function­ing. Do not route the cord where it is likely to be accidentally pulled out. If the cord is pulled during operation, the engine will shut off and you will lose most steering control. The boat could slow rapidly, throwing people and ob­jects forward.
1
Safety information
EMU33811
Gasoline
Gasoline and its vapors are highly flamma­ble and explosive. Always, refuel according
to the procedure on page 54 to reduce the risk of fire and explosion.
EMU33821
Gasoline exposure and spills
Take care not to spill gasoline. If gasoline spills, wipe it up immediately with dry rags. Dispose of rags properly. If any gasoline spills onto your skin, immedi­ately wash with soap and water. Change clothing if gasoline spills on it. If you swallow gasoline, inhale a lot of gaso­line vapor, or get gasoline in your eyes, get immediate medical attention. Never siphon fuel by mouth.
EMU33901
Carbon monoxide
This product emits exhaust gases which con­tain carbon monoxide, a colorless, odorless gas which may cause brain damage or death when inhaled. Symptoms include nausea, dizziness, and drowsiness. Keep cockpit and cabin areas well ventilated. Avoid blocking exhaust outlets.
EMU33781
Modifications
Do not attempt to modify this outboard mo­tor. Modifications to your outboard motor may reduce safety and reliability, and render the outboard unsafe or illegal to use.
EMU33742
Boating safety
This section includes a few of the many im­portant safety precautions that you should follow when boating.
EMU33711
Alcohol and drugs
Never operate after drinking alcohol or taking drugs. Intoxication is one of the most com­mon factors contributing to boating fatalities.
EMU40281
Personal flotation devices (PFDs)
Have an approved PFD on board for every occupant. Yamaha recommends that you must 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 conditions.
EMU33732
People in the water
Always watch carefully for people in the wa­ter, such as swimmers, skiers, or divers, whenever the engine is running. When some­one is in the water near the boat, shift into neutral and stop the engine. Stay away from swimming areas. Swimmers can be hard to see. The propeller can keep moving even when the motor is in neutral. Stop the engine when a person is in the water near you.
EMU33752
Passengers
Consult your boat manufacturer’s instruc­tions for details about appropriate passenger locations in your boat and be sure all passen­gers are positioned properly before acceler­ating and when operating above an idle speed. Standing or sitting in non-designated locations may result in being thrown either overboard or within the boat due to waves, wakes, or sudden changes in speed or direc­tion. Even when people are positioned prop-
2
Safety information
ZMU06025
erly, alert your passengers if you must make any unusual maneuver. Always avoid jump­ing waves or wakes.
EMU33763
Overloading
Do not overload the boat. Consult the boat capacity plate or boat manufacturer for maxi­mum weight and number of passengers. Be sure that weight is properly distributed ac­cording to the boat manufacturer’s instruc­tions. Overloading or incorrect weight distribution can compromise the boat’s han­dling and lead to an accident, capsizing or swamping.
EMU33773
Avoid collisions
Scan constantly for people, objects, and oth­er boats. Be alert for conditions that limit your visibility or block your vision of others.
Operate defensively at safe speeds and keep a safe distance away from people, objects, and other boats. Do not follow directly behind other boats or
waterskiers.
Avoid sharp turns or other maneuvers that
make it hard for others to avoid you or un­derstand where you are going.
Avoid areas with submerged objects or
shallow water.
Ride within your limits and avoid aggres-
sive maneuvers to reduce the risk of loss of control, ejection, and collision.
Take early action to avoid collisions. Re-
member, boats do not have brakes, and stopping the engine or reducing throttle can reduce the ability to steer. If you are not sure that you can stop in time before hitting an obstacle, apply throttle and turn in an­other direction.
EMU48100
Collisions with floating or submerged objects
If the outboard motor hits a floating object or an obstacle in the water while cruising, the following could occur: The passengers and any loose equipment
or luggage could be thrown forward due to the sudden deceleration.
Parts of the outboard motor could come
loose as a result of the impact and could be thrown into the boat.
The boat or outboard motor could be dam-
aged as a result of the impact. When you operate the boat in an area where there might be floating objects or obstacles in the water, be sure to adjust the trim angle of the outboard motor, slow down, and operate carefully. For further information, see page
68. If the outboard motor hits a floating object or an obstacle in the water, make sure that there are no abnormalities with the boat and the outboard motor. If anything abnormal is found, return to the nearest harbor at low speed and have a Yamaha dealer inspect the outboard motor.
3
Safety information
EMU33791
Weather
Stay informed about the weather. Check weather forecasts before boating. Avoid boating in hazardous weather.
EMU33881
Passenger training
Make sure at least one other passenger is trained to operate the boat in the event of an emergency.
EMU33891
Boating safety publications
Be informed about boating safety. Additional publications and information can be obtained from many boating organizations.
EMU33602
Laws and regulations
Know the marine laws and regulations where you will be boating—and obey them. Several sets of rules prevail according to geographic location, but all are basically the same as the International Rules of the Road.
4

General information

1
3412
ZMU01692
1
ZMU01694
EMU25172
Identification numbers record
EMU25186
Outboard motor serial number
The outboard motor serial number is stamped on the label attached to the port side of the clamp bracket. Record your outboard motor serial number in the spaces provided to assist you in ordering spare parts from your Yamaha dealer or for reference in case your outboard motor is sto­len.
1. Outboard motor serial number location
1. Serial number
2. Model name
3. Motor transom height
4. Engine code
EMU25192
Key number
If a main key switch is equipped with the mo­tor, the key identification number is stamped on your key as shown in the illustration. Re­cord this number in the space provided for reference in case you need a new key.
1. Key number
EMU38984
EC Declaration of Conformity
(DoC)
This declaration is included with outboard motors that conform to European regula­tions. This outboard motor conforms to certain por­tions of the European Parliament directive re­lating to machinery. Each conformed outboard motor accompa­nied with EC DoC. EC DoC contains the fol­lowing information;
ManufacturerModel nameEngine codeApplied directives
EMU48442
CE Marking / UKCA Marking
This label is affixed to outboard motors that conform to European regulations.
5
General information
1
6EE-43394-90
15210026
1
ZMU08190
1
ZMU08191
1
1. CE marking location
CE marking
Outboard motors affixed with this “CE” mark­ing conform with the directives of; 2006/42/EC, 2014/30/EU, and 2013/53/EU.
UKCA marking
This product is in compliance with the Recre­ational Craft Regulations 2017, Electromag­netic Compatibility Regulations 2016 and Supply of Machinery (Safety) Regulations
2008.
EMU46133
Compliance mark label
Engines affixed with this label conform to the regulations for each country. This label is affixed to the clamp bracket or swivel bracket.
1. Compliance mark label location
Regulatory Compliance Mark (RCM)
Engines affixed with this mark conform to certain portion(s) of the Australian Radio Communications Act.
1. Regulatory Compliance Mark (RCM)
ICES-002 Compliance Label
Engines affixed with this mark meet all re­quirements of the Canadian Interference Causing Equipment Regulations.
1. ICES-002 Compliance Label
6
General information
1
3
2
EMU33524
Read manuals and labels
Before operating or working on this outboard motor:
Read this manual.Read any manuals supplied with the boat.Read all labels on the outboard motor and the boat.
If you need any additional information, contact your Yamaha dealer.
EMU33836
Warning labels
If these labels are damaged or missing, contact your Yamaha dealer for replacements.
7
General information
6EE-G2794-40
6EE-H1994-40
1
2
6EE-G2794-50
6EE-H1994-50
3
EMU34652
Contents of labels
The above warning labels mean as follows.
1
EWM01682
Keep hands, hair, and clothing away
from rotating parts while the engine is running.
Do not touch or remove electrical parts
when starting or during operation.
2
EWM01672
Read Owner’s Manuals and labels.Wear an approved personal flotation de-
vice (PFD).
8
Attach engine shut-off cord (lanyard) to
your PFD, arm, or leg so the engine
stops if you accidentally leave the helm,
which could prevent a runaway boat.
EMU33851
Other labels
General information
ZMU05696
ZMU05664
ZMU05665
ZMU05666
https://www.yamaha-motor.eu/eu/ privacy/privacy-policy.aspx
EMU35133
Symbols
The following symbols mean as follows.
Notice/Warning
Read Owner’s Manual
Hazard caused by continuous rotation
Electrical hazard
EMU48000
Engine data recording
This model’s ECM stores certain engine data to assist in the diagnosis of malfunctions and for research, statistical analysis and develop­ment purposes. Although the sensors and recorded data will vary by model, the main data points are: Engine status and engine performance
data This data will be uploaded only when a spe­cial Yamaha diagnostic tool is attached to the engine, such as when maintenance checks or service procedures are performed. Engine data uploaded will be handled appropriately according to the following Privacy Policy.
Privacy Policy
Yamaha will not disclose this data to a third party except in the following cases. In addi­tion, Yamaha may provide engine data to a contractor in order to outsource services re­lated to the handling of the engine data. Even in this case, Yamaha will require the contrac­tor to properly handle the engine data we provided and Yamaha will appropriately manage the data.
With the consent of the boat ownerWhere obligated by law
9
General information
For use by Yamaha in litigationFor general Yamaha-conducted research
purposes when the data is not related to an individual engine or owner
10

Specifications and requirements

TIP:
EMU40501
Specifications
“(SUS)” indicates that the specification is for the outboard motor when it is equipped with a stainless steel propeller.
EMU48360
Dimension and weight:
Overall length:
826 mm (32.5 in)
Overall width:
524 mm (20.6 in)
Overall height L:
1629 mm (64.1 in) (F115B, F130A)
Overall height X:
1756 mm (69.1 in)
Motor transom height L:
516 mm (20.3 in) (F115B, F130A)
Motor transom height X:
643 mm (25.3 in)
Dry weight (SUS) L:
175 kg (386 lb) (F115B) 176 kg (388 lb) (F130A)
Dry weight (SUS) X:
179 kg (395 lb) (F115B, LF115B) 180 kg (397 lb) (F130A)
Performance:
Full throttle operating range:
5300–6300 r/min
Rated power:
84.6 kW (115 HP) (F115B, LF115B)
95.6 kW (130 HP) (F130A)
Idle speed (in neutral):
700–800 r/min
Power unit:
Type:
4-stroke DOHC L4 16 valves
Total displacement:
1832 cm³ (111.8 c.i.)
Bore × stroke:
81.0 × 88.9 mm (3.19 × 3.50 in)
Ignition system:
TCI
Spark plug (NGK):
LKR6E
Spark plug gap:
0.8–0.9 mm (0.031–0.035 in)
Steering system:
Remote steering
Starting system:
Electric starter
Starting carburetion system:
Fuel injection
Valve clearance IN (cold engine):
0.17–0.24 mm (0.0067–0.0094 in)
Valve clearance EX (cold engine):
0.31–0.38 mm (0.0122–0.0150 in)
Battery rating (CCA/EN):
430–1080 A
Battery rating (20HR/IEC):
70 Ah
Maximum generator output:
35 A
Lower unit:
Gear shift positions:
Forward-neutral-reverse
Gear ratio:
2.15 (28/13)
Trim and tilt system:
Power trim and tilt
Propeller mark:
K/K2 (F115B, F130A) KL (LF115B)
Fuel and oil:
Recommended fuel:
Regular unleaded gasoline
Min. research octane number (RON):
90
11
Specifications and requirements
Recommended engine oil:
YAMALUBE 4 or 4-stroke outboard motor oil
Recommended engine oil grade 1:
SAE 10W-30/10W-40/5W-30
API SG/SH/SJ/SL Engine oil quantity (without oil filter replacement):
3.0 L (3.17 US qt, 2.64 Imp.qt) Engine oil quantity (with oil filter replacement):
3.2 L (3.38 US qt, 2.82 Imp.qt) Lubrication system:
Wet sump
Recommended gear oil:
YAMALUBE outboard gear oil or Hypoid gear oil
Recommended gear oil grade:
SAE 90 API GL-4 / SAE 80W API GL-5 / SAE 90 API GL-5
Gear oil quantity:
0.715 L (0.756 US qt, 0.629 Imp.qt)
(LF115B)
0.760 L (0.803 US qt, 0.669 Imp.qt)
(F115B, F130A)
Noise and vibration level:
Operator sound pressure level (ICOMIA 39/94):
83.6 dB(A)
EMU33556
Installation requirements
Before installing the outboard motor(s), con­firm that the total horsepower of your out­board motor(s) does not exceed the boat’s maximum horsepower rating. See the boat’s capacity plate or contact the manufacturer.
EMU40491
Mounting outboard motor
EWM02501
Improper mounting of the outboard mo-
tor could result in hazardous conditions such as poor handling, loss of control, or fire hazards.
Because the outboard motor is very
heavy, special equipment and training is required to mount it safely.
Your dealer or other person experienced in proper rigging should mount the outboard motor using correct equipment and complete rigging instructions. For further information, see page 47.
EMU33582
Remote control requirements
EWM01581
If the engine starts in gear, the boat can
move suddenly and unexpectedly, pos­sibly causing a collision or throwing passengers overboard.
If the engine ever starts in gear, the
start-in-gear protection device is not working correctly and you should dis­continue using the outboard. Contact your Yamaha dealer.
EMU33566
Boat horsepower rating
EWM01561
Overpowering a boat can cause severe in­stability.
12
The remote control unit must be equipped with a start-in-gear protection device(s). This device prevents the engine from starting un­less it is in neutral.
Specifications and requirements
3
1
2
-
x
123
A
AB
A
B
EMU25695
Battery requirements
EMU25723
Battery specifications
Battery rating (CCA/EN):
430–1080 A
Battery rating (20HR/IEC):
70 Ah
The engine cannot be started if battery volt­age is too low.
EMU36293
Mounting battery
Mount the battery holder securely in a dry, well-ventilated, vibration-free location in the boat. WARNING! Do not put flammable
items, or loose heavy or metal objects in the same compartment as the battery. Fire, explosion or sparks could result.
[EWM01821]
Battery cable
The battery cable size and length are critical. Consult your Yamaha dealer about the bat­tery cable size and length.
EMU41604
Propeller selection
Next to selecting an outboard motor, select­ing the right propeller is one of the most im­portant purchasing decisions a boater can make. The type, size, and design of your pro­peller have a direct impact on acceleration, top speed, fuel economy, and even engine life. Yamaha designs and manufactures pro­pellers for every Yamaha outboard motor and every application. Your Yamaha dealer can help you select the right propeller for your boating needs. Select a propeller that will allow the engine to reach the middle or upper half of the operating range at full throttle with the maximum boat-
load. Generally, select a larger pitch propeller for a smaller operating load and a smaller pitch propeller for a heavier load. If you carry loads that vary widely, select the propeller that lets the engine run in the proper range for your maximum load but remember that you may need to reduce your throttle setting to stay within the recommended engine speed range when carrying lighter loads. Yamaha recommends to use a propeller suit­able for the “Shift Dampener System (SDS)”. For further information, consult your Yamaha dealer. To check the propeller, see page 86.
Propeller example
1. Propeller diameter in inches
2. Propeller pitch in inches
3. Type of propeller (propeller mark)
EMU36313
Counter rotation models
Standard outboard motors rotate clockwise. Counter rotation models rotate counterclock­wise and are typically used in multiple motor setups. On counter rotation models, be sure to use a propeller intended for counterclockwise rota­tion. These propellers are identified with the
13
Specifications and requirements
ZMU08143
122˚F
50˚C
104
40
86
30
68
SAE API
SG SH
SJ SL
20
50
10
32
0
14
-10
-4
-20
10W–30
10W–40
5W–30
ZMU06855
122˚F
50˚C
104
40
86
30
68
SAE API
SH
SJ SL
20
50
10
32
0
14
-10
-4
-20
15W–40
20W–40
20W–50
letter “L” after the size indication on the pro­peller. WARNING! Never use a standard
propeller with a counter rotation motor, or a counter rotation propeller with a stan­dard motor. Otherwise the boat could go in the direction opposite of that expected (for example, reverse instead of forward), which could lead to an accident.
[EWM01811]
For instructions on propeller removal and ins­tallation, see page 87.
EMU25771
Start-in-gear protection
Yamaha outboard motors or Yamaha-ap­proved 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.
EMU41953
Engine oil requirements
Select an oil grade according to the average temperatures in the area where the outboard motor will be used.
Recommended engine oil:
YAMALUBE 4 or 4-stroke outboard motor oil
Recommended engine oil grade 1:
SAE 10W-30/10W-40/5W-30 API SG/SH/SJ/SL
Recommended engine oil grade 2:
SAE 15W-40/20W-40/20W-50 API SH/SJ/SL Engine oil quantity (without oil filter replacement):
3.0 L (3.17 US qt, 2.64 Imp.qt) Engine oil quantity (with oil filter re­placement):
3.2 L (3.38 US qt, 2.82 Imp.qt)
Recommended engine oil grade 1
Recommended engine oil grade 2
EMU36361
Fuel requirements
EMU40203
Gasoline
Use a good quality gasoline that meets the minimum octane rating. If knocking or ping­ing occurs, use a different brand of gasoline or premium unleaded fuel.
Recommended fuel:
Regular unleaded gasoline
Min. research octane number (RON):
90
ECM01982
If oil grades listed under Recommended en­gine oil grade 1 are not available, select an al­ternative oil grade listed under Recommended engine oil grade 2.
14
Do not use leaded gasoline. Leaded
gasoline can seriously damage the en­gine.
Specifications and requirements
TIP:
Avoid getting water and contaminants in
the fuel tank. Contaminated fuel can cause poor performance or engine dam­age. Use only fresh gasoline that has been stored in clean containers.
E5 E10
This mark identifies the recommended fuel
for this outboard motor as specified by Eu­ropean regulation (EN228).
Check that gasoline nozzle has the same
identifier when fueling.
Gasohol
There are two types of gasohol: gasohol con­taining ethanol (E5 and E10) and that contain­ing methanol. Ethanol can be used if the ethanol content does not exceed 10% and the fuel meets the minimum octane ratings. E85 is a fuel containing 85% ethanol and must not be used in your outboard motor. All ethanol blends containing more than 10% ethanol can cause fuel system damage or cause engine starting and running problems. Yamaha does not recommend gasohol con­taining methanol because it can cause fuel system damage or engine performance prob­lems. It is recommended that you install a water­separating marine fuel filter assembly (10 mi­cron minimum) between your boat’s fuel tank and outboard motor when using ethanol. Eth­anol is known to allow moisture to be ab-
sorbed into boat fuel tanks and systems. Moisture in the fuel can cause corrosion of metallic fuel system components, starting and running complaints and require addition­al fuel system maintenance.
EMU36881
Muddy or acidic water
Yamaha strongly recommends that you have your dealer install the optional chromium­plated water pump kit if you use the outboard motor in muddy or acidic water conditions. However, depending on the model it might not be required.
EMU36331
Anti-fouling paint
A clean hull improves boat performance. The boat bottom should be kept as clean of mari­ne growth as possible. If necessary, the boat bottom can be coated with an anti-fouling 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.
EMU40302
Outboard motor disposal re-
quirements
Never illegally discard (dump) the outboard motor. Yamaha recommends consulting the dealer about discarding the outboard motor.
15
Specifications and requirements
1
EMISSION CONTROL INFORMATION
THIS ENGINE CONFORMS TO CALIFORNIA EXHAUST AND U.S. EPA EXHAUST AND EVAP REGULATIONS FOR SI MARINE ENGINES. REFER TO OWNER’S MANUAL FOR MAINTENANCE SPECIFICATIONS AND ADJUSTMENTS. FAMILY :
DISPLACEMENT : liters
MAX POWER : kW
EPA/CA FEL : HC+NOx ,CO g/kW-h
EPA CERTIFIED EVAP COMPONENTS :
YAMAHA MOTOR CO.,LTD.
ZMU06894
1
EMU36353
Emergency equipment
Keep the following items onboard in case there is trouble with the outboard motor. A tool kit with assorted screwdrivers, pliers,
wrenches (including metric sizes), and electrical tape.
Waterproof flashlight with extra batteries.An extra engine shut-off cord (lanyard) with
clip.
Spare parts, such as an extra set of spark
plugs.
Consult your Yamaha dealer for details.
EMU39001
Emission control information
The following labels are affixed to outboard motors that conform to US regulations.
EMU25232
This engine conforms to U.S. Environmental Protection Agency (EPA) regulations for mari­ne SI engines. See the label affixed to your engine for details.
EMU31563
Approval label of emission control certifi­cate
This label is attached at the location shown. New Technology; (4-stroke) MFI
1. Approval label location
EMU25275
Star labels
Your outboard motor is labeled with a Califor­nia Air Resources Board (CARB) star label. See below for a description of your particular label.
EMU40331
One Star—Low Emission
The one-star label identifies engines that meet the Air Resources Board’s Personal Watercraft and Outboard marine engine 2001 exhaust emission standards. Engines meet­ing these standards have 75% lower emis­sions than conventional carbureted two­stroke engines. These engines are equivalent to the U.S. EPA’s 2006 standards for marine engines.
1. Star label location
16
Specifications and requirements
ZMU01702
ZMU01703
ZMU01704
ZMU05663
EMU40341
Two Stars—Very Low Emission
The two-star label identifies engines that meet the Air Resources Board’s Personal Watercraft and Outboard marine engine 2004 exhaust emission standards. Engines meet­ing these standards have 20% lower emis­sions than One Star-Low-Emission engines.
EMU40351
Three Stars—Ultra Low Emission
The three-star label identifies engines that meet the Air Resources Board’s Personal Watercraft and Outboard marine engine 2008 exhaust emission standards or the Sterndrive and Inboard marine engine 2003-2008 ex­haust emission standards. Engines meeting these standards have 65% lower emissions than One Star-Low-Emission engines.
EMU33862
Four Stars—Super Ultra Low Emission
The four-star label identifies engines that meet the Air Resources Board’s Sterndrive and Inboard marine engine 2009 exhaust emission standards. Personal Watercraft and Outboard marine engines may also comply with these standards. Engines meeting these standards have 90% lower emissions than One Star-Low-Emission engines.
17

Components

TIP:
1
2
3
4
5
6
10
11
12
F115, LF115
F130
12
8
9
7
EMU46722
Components diagram
* May not be exactly as shown; also may not be included as standard equipment on all models (order from dealer).
1. Top cowling
2. Cowling lock lever
3. Power trim and tilt unit
4. Clamp bracket
5. Anode
6. Cooling water inlet
7. Propeller*
8. Trim tab (anode)
9. Anti-cavitation plate
10.Flushing device
11.Power trim and tilt switch
12.Fuse box
18
Components
7
1
2
3
4
5
8
9
6
1. Oil filler cap
2. Cowling lock lever
3. Fuel filter
4. Cooling water pilot hole
5. Drain screw
6. Gear oil drain screw
7. Cooling water inlet
8. Oil level plug
9. Oil dipstick
19
Components
TRIP TIME BATT
Km/h knot mph
km mile
SPEED
YAMAHA
set
mode
SET MODE
SET MODE
6
2451
3
10987
11 1312
EMU46733
Optional items
The following items are available from your Yamaha dealer. For details, consult your Yamaha dealer.
1. Remote control box (side mount type)
2. Remote control box (binnacle mount type)
3. Remote control box (binnacle mount type)
4. Switch panel (for use with binnacle type)
5. Switch panel (for use with binnacle type)
6. Digital tachometer
7. Digital speedometer
8. Fuel management meter
9. 6Y8 Multifunction tachometer
10.6Y8 Multifunction speed & fuel meter
11.CL5 Display
12.Yamaha Security System (Y-COP)
20
13.Tiller handle
EMU46753
Yamaha Security System (Y-COP/Op­tional)
ECM02461
The Yamaha Security System is sold in conformity with the relevant laws and reg­ulations regarding radio wave transmis­sion. Therefore, if this product is used outside the country where it was sold, it
may violate the laws or regulations re-
12
1 2
3
5
4
6
7
ZMU01723
2
3
2
1
4
ZMU04569
garding radio wave transmission in the country it is used in. For details, consult your Yamaha dealer.
The Yamaha Security System, which pro­tects against theft, consists of the receiver and key fobs. The Yamaha Security System is available from your Yamaha dealer. For de­tails, consult your Yamaha dealer.
1. Key fob
2. Receiver
The engine cannot be started if the security system is in the lock mode. The engine can be started only in the unlock mode. For more information, see the installation and owner’s manual included with the security system.
EMU26182
Remote control box
The remote control lever actuates both the shifter and the throttle. The electrical switch­es are mounted on the remote control box.
Components
1. Power trim and tilt switch
2. Remote control lever
3. Neutral interlock trigger
4. Neutral throttle lever
5. Main switch
6. Engine shut-off switch
7. Throttle friction adjuster
1. Remote control lever
2. Power trim and tilt switch
3. Free accelerator
4. Throttle friction adjuster
EMU26191
Remote control lever
Moving the lever forward from the neutral po­sition engages forward gear. Pulling the lever back from neutral engages reverse. The en­gine will continue to run at idle until the lever is moved about 35° (a detent can be felt). Moving the lever farther opens the throttle, and the engine will begin to accelerate.
21
Components
TIP:
1
23
44
5
5
6
6
7
7
F
N
R
ZMU01725
N
1
F
7
6
2
R
3
4
4
6
5
7
5
1
2
N
ZMU01728
1. Neutral “ ”
2. Forward “ ”
3. Reverse “ ”
4. Shift
5. Fully closed
6. Throttle
7. Fully open
1
ZMU01727
1. Neutral interlock trigger
EMU26213
Neutral throttle lever
To open the throttle without shifting into ei­ther forward or reverse, put the remote con­trol lever in the neutral position and lift the neutral throttle lever.
1. Neutral “ ”
2. Forward “ ”
3. Reverse “ ”
4. Shift
5. Fully closed
6. Throttle
7. Fully open
EMU26202
Neutral interlock trigger
To shift out of neutral, first pull the neutral in­terlock trigger up.
22
1. Fully open
2. Fully closed
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.
EMU26234
Free accelerator
To open the throttle without shifting into ei­ther forward or reverse, push the free accel­erator button and move the remote control lever.
TIP:
1. Fully open
1
3
2
ZMU04575
22
1
3
2
1
3
2. Fully closed
3. Free accelerator
Components
EMU25925
Gear shift lever
Move the gear shift lever forward to engage the forward gear or rearward to engage the reverse gear.
The free accelerator button can only be
pushed 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 auto­matically to its set position. The remote control will then engage forward and re­verse normally.
EMU25914
Tiller handle
To change direction, move the tiller handle to the left or right as necessary.
1. Forward “ ”
2. Neutral “ ”
3. Reverse “ ”
EMU25943
Throttle grip
The throttle grip is on the tiller handle. Turn the grip counterclockwise to increase speed and clockwise to decrease speed.
EMU25963
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.
23
Components
111
ZMU01714
ZMU04646
1. Throttle indicator
EMU25978
Throttle friction adjuster
A friction device provides adjustable resis­tance to movement of the throttle grip or the remote control lever, and can be set accord­ing to operator preference. To increase resistance, turn the adjuster clockwise. To decrease resistance, turn the adjuster counterclockwise. WARNING! Do
not overtighten the friction adjuster. If there is too much resistance, it could be difficult to move the remote control lever or throttle grip, which could result in an accident.
[EWM00033]
When constant speed is desired, tighten the adjuster to maintain the desired throttle set­ting.
EMU25996
Engine shut-off cord (lanyard) and clip
The clip must be attached to the engine shut­off switch for the engine to run. The cord 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 cord will pull out the clip, stopping ignition to the engine. This will prevent the boat from running away under power. WARNING! At-
tach the engine shut-off cord to a secure place on your clothing, or your arm or leg while operating. Do not attach the cord to clothing that could tear loose. Do not rou­te the cord where it could become entan­gled, preventing it from functioning. Avoid accidentally pulling the cord during nor­mal operation. Loss of engine power
24
means the loss of most steering control.
ZMU01716
1
2
3
1
2
3
ON
STARTOFF
ON
STARTOFF
1
2
3
ZMU05818
2
3
Also, without engine power, the boat could slow rapidly. This could cause peo­ple and objects in the boat to be thrown forward.
1. Engine shut-off cord (lanyard)
2. Clip
3. Engine shut-off switch
[EWM00123]
Components
1. Engine shut-off cord (lanyard)
2. Clip
3. Engine shut-off switch
3
2
111
1. Engine shut-off cord (lanyard)
2. Clip
3. Engine shut-off switch
1. Engine shut-off cord (lanyard)
2. Clip
3. Engine shut-off switch
EMU26004
Engine stop button
The engine stop button stops the engine when the button is pushed.
25
Components
ON
STARTOFF
ZMU01718
ON
OFF
START
ZMU04567
ON
OFF
START
ON
OFF
START
ZMU05821
EMU26092
Main switch
The main switch controls the ignition system; its operation is described below.  “” (off) With the main switch in the “ ” (off) posi­tion, the electrical circuits are off, and the key can be removed.  “” (on) With the main switch in the “ ” (on) position, the electrical circuits are on, and the key can­not be removed.  “” (start) With the main switch in the “ ” (start) po­sition, the starter motor turns to start the en­gine. When the key is released, it returns automatically to the “ ” (on) position.
EMU26113
Steering friction adjuster
A friction device provides adjustable resis­tance to the steering mechanism, and can be set according to operator preference. An ad­juster lever is located on the bottom of the til­ler handle bracket. To increase resistance, turn the lever to the port side “A”. To decrease resistance, turn the lever to the starboard side “B”.
EWM00041
26
Do not overtighten the friction adjuster. If there is too much resistance, it could be difficult to steer, which could result in an accident.
TIP:
Check the tiller handle for smooth move-
DN
UP
ZMU01720
ment when the lever is turned to the star­board side “B”.
Do not apply lubricants such as grease to
the friction areas of the steering friction ad­juster.
EMU26144
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 tran­som. Pressing the switch “ ” (up) trims the outboard motor up, and then tilts it up. Press­ing the switch “ ” (down) tilts the outboard motor down and trims it down. When the switch is released, the outboard motor will stop in its current position. For instructions on using the power trim and tilt switch, see pages 63 and 65.
Components
EMU26156
Power trim and tilt switch on bottom cowling
The power trim and tilt switch is located on the side of the bottom cowling. Pushing the switch “ ” (up) trims the outboard motor up, and then tilts it up. Pushing the switch “ ” (down) tilts the outboard motor down and trims it down. When the switch is released, the outboard motor will stop in its current po­sition. For instructions on using the power trim and tilt switch, see page 65.
EWM01032
Use the power trim and tilt switch located on the bottom cowling only when the boat is at a complete stop with the engine 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 obstacle.
27
Components
TIP:
TIP:
1
UP
DN
ZMU04601
DN
UP
1
11
1. Power trim and tilt switch
EMU26164
Power trim and tilt switches (twin bin­nacle type)
The power trim and tilt system adjusts the outboard motor angle in relation to the tran­som. Pushing the switch “ ” (up) trims the outboard motor up, and then tilts it up. Press­ing the switch “ ” (down) tilts the outboard motor down and trims it down. When the switch is released, the outboard motor will stop in its current position. For instructions on using the power trim and tilt switches, see pages 63 and 65.
EMU30903
Variable trolling RPM switches
The trolling speed can be adjusted when the outboard motor is trolling. Press the “ ” switch to increase the trolling speed and press the “ ” switch to decrease the trolling speed.
1. Variable trolling RPM switch
The trolling speed changes approximately
50 r/min each time a switch is pressed.
If the trolling speed has been adjusted, the
engine returns to the normal trolling speed when the engine is stopped and restarted or when the engine speed exceeds ap­proximately 3000 r/min.
For instructions on using the variable troll-
ing RPM switches, see page 61.
1. Power trim and tilt switch
On the dual engine control, the switch on the remote control grip controls both outboard motors at the same time.
28
EMU26246
Trim tab with anode
EWM00841
An improperly adjusted trim tab could cause difficult steering. Always test run af­ter the trim tab has been installed or re­placed to be sure steering is correct. Be sure you have tightened the bolt after ad­justing the trim tab.
Components
3
2
1
A
B
ZMU08077
1
1
The trim tab should be adjusted so that the steering control can be turned to either the right or left by applying the same amount of force. If the boat tends to veer to the left (port side), turn the trim tab rear end to the port side “A” in the figure. If the boat tends to veer to the right (starboard side), turn the trim tab end to the starboard side “B” in the figure.
ECM00841
The trim tab also serves as an anode to protect the engine from electrochemical corrosion. Never paint the trim tab as it will become ineffective as an anode.
1. Cap
2. Bolt
3. Trim tab
EMU26342
Tilt support lever for power trim and tilt model
To keep the outboard motor in the tilted up position, lock the tilt support lever to the clamp bracket.
1. Tilt support lever
ECM00661
Do not use the tilt support lever or knob when trailering the boat. The outboard motor could shake loose from the tilt sup­port and fall. If the motor cannot be trailered in the normal running position, use an additional support device to secure it in the tilt position.
EMU40762
Cowling lock lever
The cowling lock levers are used to secure the top cowling.
Bolt tightening torque:
42 N·m (4.2 kgf·m, 31 lb·ft)
1. Cowling lock lever
29
Components
1
1
1
1
1. Cowling lock lever
EMU40803
Flushing device
The flushing device is used to clean the cool­ing water passages of the outboard motor using a garden hose and tap water. For in­structions on using the flushing device, see page 72.
1. Flushing device
EMU41312
Fuel filter
The fuel filter functions to remove foreign ma­terial and separate water from the fuel. If wa­ter separated from the fuel exceeds a specific volume, the alert system will activate. For fur­ther information, see page 45.
1. Fuel filter
EMU26305
Alert indicator
If the engine develops a condition which is cause for alert, the indicator lights up. For de­tails on how to read the alert indicator, see page 43.
1. Alert indicator
30

Instruments and indicators

1
1
1
5
2
4
3
6
7
EMU36016
Indicators
EMU36026
Low oil pressure-alert indicator
If oil pressure drops too low, this indicator will light up. For further information, see page 43.
ECM00024
Do not continue to run the engine if the
low oil pressure-alert indicator is on and the engine oil level is lower. Serious en­gine damage will occur.
The low oil pressure-alert indicator does
not indicate the engine oil level. Use the oil dipstick to check the oil level. For fur­ther information, see page 51.
1. Overheat-alert indicator
EMU41391
Digital tachometer
The tachometer shows the engine speed and has the following functions. All segments of the display will light momen­tarily after the main switch is turned on and will return to normal thereafter.
1. Low oil pressure-alert indicator
EMU36034
Overheat-alert indicator
If the engine temperature rises too high, this indicator will light up. For further information on reading the indicator, see page 43.
ECM00053
Do not continue to run the engine if the overheat-alert indicator is on. Serious en­gine damage will occur.
1. Tachometer
2. Trim meter
3. Hour meter
4. Low oil pressure-alert indicator
5. Overheat-alert indicator
6. Set button
7. Mode button
EMU36051
Tachometer
The tachometer displays engine speed in hundreds of revolutions per minute (r/min). For example, if the tachometer display reads “22” then the engine speed is 2200 r/min.
31
Instruments and indicators
ZMU01740
ZMU01741
ZMU01736
1
EMU26622
Trim meter
This meter shows the trim angle of your out­board motor. 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.
EMU26652
Hour meter
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.
To reset the trip hours, simultaneously press the “ ” (set) and “ ” (mode) buttons for more than 1 second while the trip hours are displayed. This resets the trip counter to 0 (zero). The total number of hours the engine has been run cannot be reset.
EMU26526
Low oil pressure-alert indicator
If oil pressure drops too low, the alert indica­tor will start to blink. For further information, see page 43.
ECM00024
Do not continue to run the engine if the
low oil pressure-alert indicator is on and the engine oil level is lower. Serious en­gine damage will occur.
The low oil pressure-alert indicator does
not indicate the engine oil level. Use the oil dipstick to check the oil level. For fur­ther information, see page 51.
To change the display format, press the “ ” (mode) button. The display can show total hours or trip hours, or turn off.
32
1. Low oil pressure-alert indicator
EMU26584
Overheat-alert indicator
If the engine temperature rises too high, the alert indicator will start to blink. For further in­formation on reading the indicator, see page
43.
Instruments and indicators
ZMU01737
1
TRIP TIME BATT
km/h knot mph
km mile
SPEED
YAMAHA
set
mode
1
2
4
3
ZMU07002
ECM00053
Do not continue to run the engine if the overheat-alert indicator is on. Serious en­gine damage will occur.
1. Overheat-alert indicator
EMU26603
Digital speedometer
This gauge shows the boat speed and other information.
EMU36062
Speedometer
The speedometer displays km/h, mph, or knots, according to operator preference. Se­lect the desired units of measurement by set­ting the selector switch on the back of the gauge. See the illustration for settings.
1
2
km/h (km)
mph (mile)
knots (mile)
1. Cap
2. Selector switch (for speed unit)
3. Selector switch (for fuel sensor)
EMU26714
Fuel gauge
Eight segments indicate the fuel level. When all segments are showing, the fuel tank is full.
1234
3
ZMU07001
1. Speedometer
2. Fuel gauge
3. Trip meter/clock/voltmeter
4. Alert indicator(s)
All segments of the display will light momen­tarily after the main switch is turned on and will return to normal thereafter.
The fuel level reading can be inaccurate due to 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. Do not adjust the selector switch for fuel sen­sor. Incorrectly setting the selector switch on the gauge will give false readings. Consult
33
Instruments and indicators
TRIP TIME BATT
km/h knot mph
km mile
SPEED
YAMAHA
set
mode
ZMU07003
TRIP TIME BATT
km/h knot mph
km mile
SPEED
YAMAHA
set
mode
ZMU07004
your Yamaha dealer on how to correctly set the selector switch. NOTICE: Running out of
fuel can damage the engine.
EMU36072
[ECM01771]
Trip meter / Clock / Voltmeter
The display shows either the trip meter, the clock, or the voltmeter. To change the display, press the “ ” (mo­de) button repeatedly until the indicator on the face of the gauge points to “ ” (trip meter), “ ” (clock), or “ ” (voltmeter).
EMU26692
Trip meter
This gauge displays the distance the boat has traveled since the gauge was last reset. The trip distance is shown in kilometers or miles depending upon the unit of measure­ment selected for the speedometer. To reset the trip meter to zero, press the “ ” (set) and “ ” (mode) buttons at the same time. The trip distance is kept in memory by battery power. The stored data will be lost if the bat­tery is disconnected.
(3) Press the “ ” (mode) button until the
desired hour is displayed.
(4) Press the “ ” (set) button again, the mi-
nute display will begin blinking.
(5) Press the “ ” (mode) button until the
desired minute is displayed.
(6) Press the “ ” (set) button again to start
the clock.
The clock operates on battery power. Dis­connecting the battery will stop the clock. Reset the clock after connecting the battery.
EMU36081
Voltmeter
The voltmeter displays the charge of the bat­tery in volts(V).
EMU26702
Clock
To set the clock: (1) Be sure the gauge is in the “ ” (time)
mode.
(2) Press the “ ” (set) button; the hour dis-
34
play will begin blinking.
EMU26723
Fuel level-alert indicator
If the fuel level decreases to one segment, the fuel level alert segment will blink. Do not continue to operate the engine at full throttle if an alert device has activated. Get back to the port using trolling engine speed.
NOTICE: Running out of fuel can damage the engine.
[ECM01771]
Instruments and indicators
TRIP TIME BATT
km/h knot mph
km mile
SPEED
YAMAHA
set
mode
1
TRIP TIME BATT
km/h knot mph
km mile
SPEED
YAMAHA
set
mode
ZMU07006
1
ZMU01748
1
2
3
111
1. Fuel level-alert segment
EMU26733
Low battery voltage-alert indicator
If battery voltage drops, the display will auto­matically turn on and blink. Get back to the port soon if an alert device has activated. For charging the battery, con­sult your Yamaha dealer.
1. Low battery indicator
EMU26742
Fuel management meter
The fuel management meter shows the state of the fuel consumption while the engine is running.
1. Fuel flow meter
2. Fuel consumption meter / Fuel economy meter / Twin engine speed synchronizer
3. Water separator-alert indicator (operates only if the sensor has been installed)
All segments of the display will light momen­tarily after the main switch is turned on and will return to normal thereafter.
EMU26753
Fuel flow meter
The fuel flow meter displays the amount of fuel flow over a one-hour period, at the cur­rent rate of engine operation. The fuel flow meter displays gallons/hour
or liters/hour according to operator prefer­ence. Select the desired units of measure­ment by setting the selector switch on the back of the gauge during installation.
1. Selector switch
The fuel consumption meter and fuel econ-
omy meter will indicate the same unit of measurement.
35
Instruments and indicators
ZMU01749
ZMU01751
ZMU01752
Fuel flow readings are not accurate when the engine is operating under about 1300 r/min. As the fuel pump cycles on and off, the dis­play indicates either no fuel flow or higher flow than the actual average use. Dual engine users: the fuel flow meter can display the fuel flow of either or both engines.
To change the fuel flow display, press the “ ” (set) button repeatedly until the gauge displays “ ” (for fuel flow to the starboard en­gine only), “ ” (for fuel flow to the port engine only), or “ ” (for total fuel flow both en­gines).
EMU36091
Fuel consumption meter / Fuel econo­my meter / Twin engine speed syn­chronizer
The display shows either the fuel consump­tion meter, the fuel economy meter, or the twin engine synchronizer. To change the display, press the “ ” (mo­de) button repeatedly until the indicator on the face of the gauge points to “ ” (fuel consumption meter), “ ” (fuel economy meter), or “ ” (twin engine speed syn­chronizer).
EMU26762
Fuel consumption meter
This gauge displays the total amount of fuel consumed since the gauge was last reset.
To reset the total fuel consumption meter to zero, press the “ ” (set) and “ ” (mode) buttons at the same time.
EMU26772
Fuel economy
This gauge displays the approximate dis­tance per liter or gallon when cruising.
If twin engines are installed on your boat, the gauge will only display the total fuel economy of both engines. 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 temper­ature and humidity, cleanliness of the boat bottom, engine mounting height, skill of the operator, and individual gasoline formula­tion (winter or summer fuel and amount of additives).
36
Instruments and indicators
ZMU01753
1
2
3
4
5
ZMU01755
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 currents, sea swells, and the condition of the water speed sensor (if 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 propel­lers, even of the same basic dimensions of the same design, can also cause a slight variation in fuel consumption.
EMU26783
Twin-engine speed synchronizer
This gauge displays the difference in engine speed (r/min) between the port and starboard engines for reference purposes when syn­chronizing the two engines’ speeds.
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
If the two engines’ speeds are not synchro­nized while cruising, adjusting trim angle or throttle can synchronize them. If large differences in trim angle or throttle are needed to synchronize the engines, consult your Yamaha dealer for adjustments to the throttle cables.
EMU26794
Water separator-alert indicator
This indicator will blink when water has accu­mulated in the water separator. In such an event, stop the engine and drain the water from the separator. This indicator only operates when a water separator sensor is equipped.
37
Instruments and indicators
TIP:
TIP:
1
2
1
23 54
10 9 8 7 6
EMU48821
CL5 Display
The CL5 Display shows engine status and alert information. The display can be changed. This manual mainly covers the alert display. If a warning message appears on the CL5 Display, follow the instructions on the dis­play.
The functions shown in the display varies
according to the equipment of the boat.
For more information, see the CL5 owner’s
manual.
1. Touchscreen
2. Power button
1. Boat status
2. Speedometer
3. Tank level
4. Engine condition
5. Trolling mode button
6. Trim angle
7. Engine alert
8. Tachometer
9. Sub status
10.Engine status
GPS signal strength icons
The icons shown in the upper-right of the en­gine screen indicate the GPS signal strength. “ ” shows GPS satellite signal strength ac­cording to the number of antenna symbol. “ ” shows no GPS antenna connection.
To use the GPS feature, a GPS receiver must be connected to this device. Contact your Yamaha dealer for information on how to connect a GPS receiver.
Engine condition icons
Orange icons indicate engine conditions.
Yamaha Security System indicator “ ”
(optional)
This indicator appears when the Yamaha Security System is in lock mode. Make sure it is off before starting the engine.
Engine warm-up indicator “ ”
This indicator appears while the engine is being warmed up and goes off when warming-up is finished.
Engine synchronization indicator “ ”
In multiple engine types, this indicator ap­pears while the engines are under synchro­nization control. It goes off when engine synchronization control is released.
Engine alert icons
Red icons indicate engine abnormalities. When an abnormality occurs, a pop-up win­dow will be displayed, and the buzzer will sound.
38
Instruments and indicators
12
1
ECM01594
Do not continue to run the engine if the
overheat-alert indicator blinks. Serious engine damage will occur.
Do not continue to operate the engine if
an alert device has activated. Consult your Yamaha dealer if the problem can­not be located and corrected.
1. Pop-up window
2. Confirm button
Press the confirm button to change to the normal display. The engine alert icon will start to blink.
1. Engine alert icon
ECM00093
Do not continue to operate the engine if an alert device has activated. Consult your
Yamaha dealer if the problem cannot be
located and corrected.
The engine alert icon will appear according to the kind of abnormality. The symbols and their explanations are described below.
Overheat alert “ ”
If the engine temperature rises too high while cruising, this alert will be activated. Stop the engine immediately. Check the cooling water inlet for clogging, and clear it if it is blocked.
Low oil pressure alert “ ”
If the engine oil pressure drops too low, this alert will be activated. Stop the engine im­mediately. Check the engine oil level and replenish oil if necessary. If the alert device has activated while the appropriate engine oil level is maintained, consult your Yamaha dealer.
ECM01602
Do not continue to run the engine if the low oil pressure alert device has activated. Serious engine damage will occur.
Water in Fuel Alert “ ”
If water has accumulated in the water sep­arator (fuel filter) while cruising, this alert will be activated. Stop the engine immedi­ately and see page 95 of this manual to drain the water from the fuel filter. Consult a Yamaha dealer.
ECM00911
Gasoline mixed with water could cause damage to the engine.
Low battery voltage alert “ ”
If the battery voltage drops, this alert will be activated. If the low battery voltage alert device has activated, return to port and consult a Yamaha dealer immediately. To charge the battery, consult your Yamaha dealer.
39
Instruments and indicators
TIP:
SET MODE
21
ZMU08407
1 2
3
ZMU08408
SET MODE
21
ZMU08409
1
3
2
ZMU08410
Check engine alert “ ”
If the engine malfunctions while cruising, this alert will be activated. Return to port and consult a Yamaha dealer immediately.
Check System / Steering Malfunction
Alert
If a malfunction occurs in the system, the system alert will be activated. Return to port immediately and contact your Yamaha dealer.
EMU46654
6Y8 Multifunction meters
There are two types of 6Y8 Multifunction me­ters.
6Y8 Multifunction tachometer6Y8 Multifunction speed & fuel meter
6Y8 Multifunction tachometer
6Y8 Multifunction speed & fuel meter
1. Set button
2. Mode button
1. Speedometer
2. Fuel meter
3. Multifunction display
1. Set button
2. Mode button
1. Tachometer
2. Trim meter
3. Multifunction display
40
The information displayed on the multifunc­tion display can be changed. For information on other settings or changing the displayed information, see the operation manual includ­ed with the 6Y8 Multifunction meter.
This manual mainly covers the alert display of the 6Y8 Multifunction tachometer. See the following sections for information about the alert indicators.
Indicators
1
7 6 5 4
2 3
ZMU08411
SET MODE
1
ZMU08412
1
ZMU08413
1
ZMU08414
Instruments and indicators
1. Yamaha Security System indicator (optional)
2. Water separator-alert indicator
3. Engine trouble-alert indicator
4. Battery voltage indicator
5. Overheat-alert indicator
6. Low oil pressure-alert indicator
7. Cooling water pressure indicator (optional)
Yamaha Security System indicator (op-
tional)
This indicator appears, when the Yamaha Se­curity System is in lock mode.
Lock mode
1. Yamaha Security System indicator (optional)
Make sure that the Yamaha Security System indicator is off before starting the engine.
Water separator-alert indicator
If water has accumulated in the water sepa­rator (fuel filter) while cruising, the water sep­arator-alert indicator will start to blink.
1. Water separator-alert indicator
Stop the engine immediately and see page 95 of this manual to drain the water from the fuel filter. Get back to the port soon and con­sult a Yamaha dealer immediately.
ECM00911
Gasoline mixed with water could cause damage to the engine.
Engine trouble-alert indicator
If the engine malfunctions while cruising, the engine trouble-alert indicator will start to blink. Get back to the port soon and consult a Yamaha dealer immediately.
1. Engine trouble-alert indicator
ECM00921
In such an event, the engine will not oper­ate properly. Consult a Yamaha dealer im­mediately.
41
Instruments and indicators
1
ZMU08415
1
ZMU08416
1
ZMU08417
Low battery voltage alert
If the battery voltage drops, the battery volt­age value will start to blink.
1. Battery voltage value
Get back to the port soon if the low battery voltage alert device has activated. For charg­ing the battery, consult your Yamaha dealer.
Overheat-alert indicator
If the engine temperature rises too high while cruising, the overheat-alert indicator will start to blink, and the engine speed will automati­cally decrease to about 2000–3500 r/min.
ECM01594
Do not continue to run the engine if the
overheat-alert indicator blinks. Serious engine damage will occur.
Do not continue to operate the engine if
an alert device has activated. Consult your Yamaha dealer if the problem can­not be located and corrected.
Low oil pressure-alert indicator
If the engine oil pressure drops too low, the low oil pressure-alert indicator will start to blink, and the engine speed will automatically decrease to about 2000–3500 r/min.
1. Overheat-alert indicator
Stop the engine immediately if the buzzer sounds and the overheat device has activat­ed. Check the cooling water inlet for clog­ging.
42
1. Low oil pressure-alert indicator
Stop the engine immediately if the buzzer sounds and the low oil pressure-alert indica­tor blinks. Check the engine oil level and re­plenish oil if necessary. If the alert device has activated while the appropriate engine oil lev­el is maintained, consult your Yamaha dealer.
ECM01602
Do not continue to run the engine if the low oil pressure alert device has activated. Serious engine damage will occur.
EMU26806
ZMU05422
ZMU01758
ZMU04583
ZMU07859
Alert system
ECM00093
Do not continue to operate the engine if an alert device has activated. Consult your
Yamaha dealer if the problem cannot be
located and corrected.
EMU41927
Overheat alert
This engine has an overheat-alert device. If the engine temperature rises too high, the alert device will activate. The engine speed will automatically de-
crease to about 2000–3500 r/min.
The overheat-alert indicator will light or
blink.

Engine control system

The pop-up window will appear on the
Multi-Display.
The buzzer will sound.
If the alert system has activated, stop the en­gine and check the cooling water inlets: Check trim angle to be sure that the cooling
water inlet is submerged.
43
Engine control system
TIP:
1
ZMU08288
ON
OFF START
ZMU05431
1. Cooling water inlet
Check the cooling water inlet for clogging.
Twin engine drive users
If the overheat alert system of one outboard motor activates, the engine will slow down. To turn off the alert activation on the out­board motors not affected by overheating (1) Turn the main switch to “ ” (off) for the
overheating outboard motor.
If the alert system has activated, stop the en­gine and tilt the outboard motor up to check the cooling water inlets for clogging. (2) If the alert system is still activated, tilt the
overheated outboard motor up and re­turn to port.
EMU41937
Low oil pressure alert
If the oil pressure drops too low, the alert de­vice will activate. The engine speed will automatically de-
crease to about 2000–3500 r/min.
The low oil pressure-alert indicator will light
or blink.
44
The pop-up window will appear on the
Multi-Display.
The buzzer will sound.
TIP:
ZMU01758
ZMU07012
ZMU07859
ON
OFF START
Engine control system
If the alert 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 and the alert system does not turn off, consult your Yamaha dealer.
Twin engine drive users
If the low oil pressure alert system of one out­board motor activates, all of the engines will slow down and the buzzer will sound. To turn off the alert activation on the out­board motors not affected by the low oil pres­sure Turn the main switch to “ ” (off) for the out­board motor that has the low oil pressure.
EMU41947
Water separator alert
The outboard motor is equipped with a water separator alert system. If water separated from the fuel exceeds a specific volume, the alert system will activate. The water separator-alert indicator will
come on or blink.
45
Engine control system
ZMU05424
The pop-up window will appear on the
Multi-Display.
The buzzer will sound intermittently when
the control lever is in the neutral position. If the alert system has activated Stop the engine and see page 97 of this man­ual to drain the water from the fuel filter. Re­turn to port and consult a Yamaha dealer immediately.
ECM02471
Although the buzzer will stop when the en­gine is started and the control lever is moved to the forward or reverse position, do not use the outboard motor. Otherwise, serious engine damage could occur.
46
EMU26903
1
1

Installation

The information presented in this section is intended as reference only. It is not possible to provide complete instructions for every possible boat and motor combination. Proper mounting depends in part on experience and the specific boat and motor combination.
EWM01591
Installation
Overpowering a boat could cause se-
vere instability. Do not install an out-
board motor with more horsepower
than the maximum rating on the capaci-
ty plate of the boat. If the boat does not
have a capacity plate, consult the boat
manufacturer. Improper mounting of the outboard mo-
tor could result in hazardous conditions
such as poor handling, loss of control,
or fire hazards. For permanently mount-
ed models, your dealer or other person
experienced in proper rigging should
mount the motor.
EMU33482
Mounting the outboard motor
The outboard motor should be mounted so that the boat is well balanced. Otherwise, the boat could be hard to steer. For single-engine boats, mount the outboard motor on the cen­terline (keel line) of the boat. For twin engine boats, mount the outboard motors equidis­tant from the centerline. Consult your
Yamaha dealer or boat manufacturer for fur-
ther information on determining the proper mounting location.
1. Center line (keel line)
1. Center line (keel line)
EMU26937
Mounting height (boat bottom)
The mounting height of your outboard motor affects its efficiency and reliability. If it is mounted too high, propeller ventilation may occur, which will reduce propulsion due to excessive propeller slip, and the water in­takes for the cooling system may not get an adequate water supply, which can cause en­gine overheating. If the engine is mounted too low, water resistance (drag) will increase, thereby reducing engine efficiency and per­formance. Most commonly, an outboard motor should be mounted so that the anti-cavitation plate is in alignment with the bottom of the boat. The optimum mounting height of the out­board motor is affected by the boat/motor combination and the desired use. Test runs at different heights can help determine the
47
Installation
1
optimum mounting height. Consult your
Yamaha dealer or boat manufacturer for fur-
ther information on determining the proper mounting height.
1. Idle hole
ECM01635
Make sure that the idle hole is high
enough to prevent water from entering
the engine even if the boat is stationary
with the maximum load. Incorrect engine height or obstructions
to the smooth flow of water (such as the
design or condition of the boat, or ac-
cessories, such as transom ladders or
depth finder transducers) can create air-
borne water spray while the boat is
cruising. If the outboard motor is oper-
ated continuously in the presence of air-
borne water spray, enough water could
enter the engine through the air intake
opening in the top cowling to cause se-
vere engine damage. Remove the cause
of the airborne water spray.
48

Operation

TIP:
ZMU01710
EMU36382
First-time operation
EMU36393
Fill engine oil
The engine is shipped from the factory with­out engine oil. If your dealer did not fill the oil, you must fill it before starting the engine.
NOTICE: Check that the engine is filled
with oil before first-time operation to avoid severe engine damage.
The engine is shipped with the following tag, which should be removed after engine oil is filled for the first time. For more information on checking the engine oil level, see page 51.
[ECM01782]
life. NOTICE: Failure to follow the break-in
procedure could result in reduced engine life or even severe engine damage.
EMU27086
[ECM00802]
Procedure for 4-stroke models
Your new engine requires a period of 10 hours break-in to allow mating surfaces of moving parts to wear in evenly.
Run the engine in the water, under load (in gear with a propeller installed) as follows. For 10 hours for breaking in engine avoid extend­ed idling, rough water and crowded areas. (1) For the first hour of operation:
Run the engine at varying speeds up to 2000 r/min or approximately half throttle.
(2) For the second hour of operation:
Increase engine speed as much as nec­essary to put the boat on plane (but avoid full-throttle operation), then back off on the throttle while keeping the boat at a planing speed.
(3) Remaining 8 hours:
Run the engine at any speed. However, avoid operating at full throttle for more than 5 minutes at a time.
(4) After the first 10 hours:
Operate the engine normally.
EMU30175
Breaking in engine
Your new engine requires a period of break­in to allow mating surfaces of moving parts to wear in evenly. Correct break-in will help en­sure proper performance and longer engine
EMU36402
Getting to know your boat
All boats have unique handling characteris­tics. Operate cautiously while you learn how your boat handles under different conditions and various trim angles (see page 63).
49
Operation
1
1
EMU36414
Checks before starting engine
EWM01922
If any item in “Checks before starting en­gine” is not working properly, have it in­spected and repaired before operating the outboard motor. Otherwise, an accident could occur.
ECM00121
Do not start the engine out of water. Over­heating and serious engine damage can occur.
1. Cowling lock lever
EMU36443
Fuel system
EWM00061
EMU36422
Fuel level
Be sure you have plenty of fuel for your trip. A good rule is to use 1/3 of your fuel to get to the destination, 1/3 to return, and to keep 1/3 as an emergency reserve. With the boat level on a trailer or in the water, turn the key to “ ” (on) and check the fuel level. For fuel filling in­structions, see page 54.
EMU40774
Removing top cowling
For the following checks, remove the top cowling from the bottom cowling. To remove the top cowling, pull the cowling lock levers and lift up the top cowling.
Gasoline and its vapors are highly flamma­ble and explosive. Keep away from sparks, cigarettes, flames, or other sources of ig­nition.
EWM00911
Leaking fuel can result in fire or explosion.
Check for fuel leakage regularly.If any fuel leakage is found, the fuel sys-
tem must be repaired by a qualified me­chanic. Improper repairs can make the outboard unsafe to operate.
EMU36453
Check for fuel leaks
Check for fuel leaks or gasoline fumes in
the boat.
Check for fuel leakage from the fuel sys-
tem.
Check the fuel tank and fuel lines for
cracks, swellings, or other damage.
1. Cowling lock lever
50
Operation
1
ZMU06873
1
2
1
EMU37323
Checking the fuel filter
Check that the fuel filter is clean and free of water. If any water is found in the fuel, or if a significant amount of debris is found, the fuel tank should be checked and cleaned by a
Yamaha dealer.
1. Fuel filter
EMU36903
Controls
Tiller handle models: Move the tiller handle fully to the left and
right to make sure operation is smooth. Turn the throttle grip from the fully closed
to the fully open position. Make sure that it
turns smoothly and that it completely re-
turns to the fully closed position. Look for loose or damaged connections of
the throttle and shift cables. Remote control models: Turn the steering wheel full-right and full-
left. Make sure operation is smooth and un-
restricted throughout the whole range with
no binding or excessive free play. Operate the throttle levers several times to
make sure there is no hesitation in their
travel. Operation should be smooth over
the complete range of motion, and each le-
ver should return completely to the idle po-
sition.
Look for loose or damaged connections of
the throttle and shift cables.
EMU36484
Engine shut-off cord (lanyard)
Inspect the engine shut-off cord and clip for damage, such as cuts, breaks, and wear.
1. Clip
2. Engine shut-off cord (lanyard)
EMU40994
Engine oil
(1) Place the outboard motor in a vertical
position (not tilted). NOTICE: If the out-
board motor is not level, the oil level indicated on the oil dipstick may not be accurate.
(2) Remove the oil dipstick and wipe it
clean.
1. Oil dipstick
(3) Insert the oil dipstick completely and re-
move it again.
[ECM01862]
51
Operation
1
3 2
123
1
2
(4) Check that the oil level on the oil dipstick
is between the upper and lower marks. Consult your Yamaha dealer if the oil lev­el is not at the proper level or if it appears milky or dirty.
1. Oil dipstick
2. Upper mark
3. Lower mark
EMU40412
Outboard motor
Check that the outboard motor is mounted
properly and check the outboard motor
mounting bolts for looseness.
Check the propeller for damage.Check for engine oil leaks.
1. Fitting
2. Garden hose connector
3. Flushing device
EMU36965
Install cowling
(1) Be sure that all cowling lock levers are
released.
(2) Be sure that the rubber seal is seated all
the way around the top cowling.
EMU36494
Flushing device
Check that the flushing device’s garden hose connector is securely screwed on to the fit­ting on the bottom cowling. NOTICE: If the
garden hose connector is not properly connected, cooling water can leak out and the engine can overheat during operation.
[ECM01802]
52
1. Top cowling
2. Rubber seal
(3) Place the top cowling on the bottom
cowling.
(4) Check to be sure the rubber seal is seat-
ed correctly between the top cowling and the bottom cowling.
(5) Move the cowling lock levers to lock the
top cowling as shown. NOTICE: If the
top cowling is not installed correctly,
Operation
1
1
ZMU07760
1
ZMU08094
water spray under the top cowling can damage the engine, or the top cowling can blow off at high speeds.
1. Cowling lock lever
1. Cowling lock lever
[ECM01992]
After installing, check the fitting of the top cowling by pushing it with both hands. If the top cowling is loose, have it repaired by your
Yamaha dealer.
EMU34582
Power trim and tilt system
EWM01931
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.
Body parts can be crushed between the
motor and the clamp bracket when the motor is trimmed or tilted.
Be sure no one is near the outboard mo-
tor before performing this check.
(1) Check the power trim and tilt unit for any
sign of oil leaks.
(2) Operate each of the power trim and tilt
switches to check that all switches work.
(3) Tilt the outboard motor up and check
that the trim and tilt rod is pushed out completely.
1. Trim and tilt rod
(4) Check that the trim and tilt rod is free of
corrosion or other flaws.
(5) Tilt the outboard motor down. Check
that the trim and tilt rod operates smoothly.
EMU36585
Battery
Check the battery’s charge. If your boat is equipped with a Yamaha digital speedome­ter, the voltmeter and low battery alert func-
53
Operation
tions will help you monitor the battery’s charge. A battery in good condition will pro­vide a minimum of 12 volts. Check that the battery connections are clean, secure and covered by insulating covers. The electrical connections of the battery and cables must be clean and properly connected or the bat­tery will not start the engine. If the battery needs charging, consult your
Yamaha dealer or the battery manufacturer’s
instructions.
EMU30027
Filling fuel
EWM01831
Gasoline and its vapors are highly flam-
mable and explosive. Always refuel ac-
cording to this procedure to reduce the
risk of fire and explosion. Gasoline is poisonous and can cause in-
jury or death. Handle gasoline with care.
Never siphon gasoline by mouth. If you
should swallow some gasoline or inhale
a lot of gasoline vapor, or get some gas-
oline in your eyes, see your doctor im-
mediately. If gasoline spills on your skin,
wash with soap and water. If gasoline
spills on your clothing, change your
clothes.
(1) Make sure that the engine is stopped. (2) Make sure that the boat is in a well-ven-
tilated outdoor area, either securely
moored or trailered. (3) Make sure that no one is in the boat. (4) Do not smoke and keep away from
sparks, flames, static electric discharge,
or other sources of ignition. (5) If you use a portable container to store
and dispense fuel, only use a locally ap-
proved GASOLINE container.
(6) Touch the fuel nozzle to the filler opening
or funnel to help prevent electrostatic sparks.
(7) Fill the fuel tank, but do not overfill.
WARNING! Do not overfill. Otherwise fuel can expand and overflow if the temperature increases.
[EWM02611]
(8) Tighten the fuel tank cap securely. (9) Wipe up any spilled gasoline immediate-
ly with dry rags. Dispose of rags properly according to local laws or regulations.
EMU40252
Operating engine
EWM02601
This product emits exhaust gases which contain carbon monoxide, a colorless, odorless gas which could cause brain damage or death when inhaled. Symp­toms include nausea, dizziness, and drowsiness. Keep cockpit and cabin areas well ventilated. Avoid blocking exhaust outlets.
EMU31814
Sending fuel
(1) If there is a fuel joint or a fuel valve on the
boat, firmly connect the fuel line to the joint or open the fuel valve.
(2) Squeeze the primer pump, with the ar-
row pointing up, until you feel it become firm.
54
TIP:
1. Arrow
11
Operation
EMU27496
Starting engine
EWM01601
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.
EMU27597
Electric start / prime start models
EWM01842
Failure to attach the engine shut-off
cord could result in a runaway boat if operator is ejected. Attach the engine shut-off cord to a secure place on your clothing, or your arm or leg while oper­ating. Do not attach the cord to clothing that could tear loose. Do not route the cord where it could become entangled, preventing it from functioning.
Avoid accidentally pulling the cord dur-
ing normal operation. Loss of engine 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.
The start-in-gear protection device prevents the engine from starting except when in neu­tral. (2) Attach the engine shut-off cord to a se-
cure place on your clothing, or your arm or leg. Then install the clip on the other end of the cord into the engine shut-off switch.
(3) Place the throttle grip in the “
(start) position. After the engine starts, return the throttle to the fully closed po­sition.
(1) Place the gear shift lever in neutral.
55
Operation
TIP:
N
ZMU01771
(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 and allow it to re-
turn to “ ” (on). NOTICE: 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 impossible to start the
engine. The starter can also be dam-
aged. 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.
When the engine is cold, it needs to be
warmed up. For further information, see page 59.
[ECM00193]
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 92.
EMU2762B
Electric start and remote control models
EWM01842
Failure to attach the engine shut-off
cord could result in a runaway boat if operator is ejected. Attach the engine shut-off cord to a secure place on your clothing, or your arm or leg while oper­ating. Do not attach the cord to clothing that could tear loose. Do not route the cord where it could become entangled, preventing it from functioning.
Avoid accidentally pulling the cord dur-
ing normal operation. Loss of engine 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.
(1) Place the remote control lever in “ ”
(neutral).
56
TIP:
The start-in-gear protection device prevents
TIP:
N
ZMU04588
ZMU01772
ZMU04628
ON
STARTOFF
ON
STARTOFF
ZMU05828
ON
START
ZMU01774
the engine from starting except when in neu­tral. (2) Attach the engine shut-off cord to a se-
cure place on your clothing, or your arm
or leg. Then install the clip on the other
end of the cord into the engine shut-off
switch.
Operation
(3) Turn the main switch to “ ” (on).
Dual engine users: When the main switch is turned on, the buzzer operates for a few sec­onds 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.
57
Operation
TIP:
ZMU06928
ON
START
ON
START
ZMU05830
1
(5) Immediately after the engine starts, re-
lease the main switch to return it to “ ”
(on). NOTICE: Never turn the main
switch to “ ” (start) while the en-
gine is running. Do not keep the start-
er 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 impossible to start the
engine. The starter can also be dam-
aged. 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.
[ECM00193]
EMU36511
Checks after starting engine
EMU41361
Cooling water
Check for a steady flow of water from the cooling water pilot hole. A continuous flow of water from the cooling water pilot hole shows that the water pump is pumping water through the cooling water passages.
When the engine is started, there may be a slight delay before water flows from the cool­ing water pilot hole.
ECM02251
If water is not flowing out of the cooling water pilot hole at all times while the en­gine is running, overheating and serious 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 problem cannot be located and corrected.
1. Cooling water pilot hole
58
Operation
EMU27671
Warming up engine
EMU41234
Procedure for warming up engine
(1) After starting the engine, warm up the
engine until the engine speed stabilizes
at idle speed to provide maximum oper-
ating performance and acceleration.
NOTICE: Failure to do so will shorten
engine life.
Idle speed (in neutral):
700–800 r/min
(2) Check that the low oil pressure-alert indi-
cator remains off. NOTICE: If the low oil
pressure-alert indicator blinks after
the engine starts, stop the engine.
Otherwise, serious engine damage
could occur. Consult your Yamaha
dealer.
EMU36532
[ECM04550]
[ECM02381]
Checks after engine warm up
EMU36542
Shifting
While the boat is tightly moored, and without applying throttle, confirm that the engine shifts smoothly into forward and reverse, and back to neutral.
EMU36981
Stop switches
Turn the main switch to “ ”, or press the
engine stop button and make sure the en­gine stops.
Confirm that removing the clip from the en-
gine shut-off switch stops the engine.
Confirm that the engine cannot be started
with the clip removed from the engine shut­off switch.
EMU33493
Shifting
EWM00181
Before shifting, make sure there are no swimmers or obstacles in the water near you.
ECM01611
Warm up the engine before shifting into gear. Until the engine is warm, the idle speed may be higher than normal. High idle speed can prevent you from shifting back to neutral. If this occurs, stop the en­gine, shift to neutral, then restart the en­gine and allow it to warm up.
To shift out of neutral (1) Pull the neutral interlock trigger up (if
equipped).
1
ZMU01727
1. Neutral interlock trigger
(2) Move the remote control lever / gear shift
lever firmly and crisply forward (for for­ward gear) or backward (for reverse gear) [about 35° (a detent can felt) for remote control models].
59
Operation
F
N
R
32˚
32˚
ZMU05460
RF
ZMU05462
To shift from in gear (forward/reverse) to neu­tral (1) Close the throttle so that the engine
slows to idle speed.
60
(2) After the engine is at idle speed in gear
move the remote control lever / gear shift lever firmly and crisply into the neutral position.
Operation
TIP:
N
ZMU01771
N
ZMU04588
1121
2
Do not shift into reverse while traveling
at planing speeds. Loss of control, boat swamping, or damage to the boat could occur.
The boat is not equipped with a separate braking system. Water resistance stops it af­ter the throttle lever is moved back to idle. The stopping distance varies depending on gross weight, water surface conditions, and wind direction.
EMU30881
Trolling
EMU30891
Adjusting trolling speed
The trolling speed on outboard motors equipped with the variable trolling RPM switches can be adjusted approximately 50 r/min with each press of a switch.
EMU31743
Stopping boat
EWM01511
Do not use the reverse function to slow
down or stop the boat as it could cause you to lose control, be ejected, or im­pact the steering wheel or other parts of the boat. This could increase the risk of serious injury. It could also damage the shift mechanism.
1. “ ” switch
2. “ ” switch
To increase the trolling speed, press the “ ” switch. To decrease the trolling speed, press the “” switch.
The trolling speed changes approximately
50 r/min each time a switch is pressed.
61
Operation
ON
OFF
ZMU01779
ZMU06932
ON
OFF
OFFOFF
ON ON
ZMU05833
If the trolling speed has been adjusted, the
engine returns to the normal trolling speed when the engine is stopped and restarted or when the engine speed exceeds ap­proximately 3000 r/min.
EMU27823
Stopping engine
Before stopping the engine, first let it cool off for a few minutes at idle or low speed. Stop­ping the engine immediately after operating at high speed is not recommended.
EMU2784A
Procedure
(1) Push and hold the engine stop button or
turn the main switch to “ ” (off).
62
(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 un-
attended.
TIP:
The engine can also be stopped by pulling
1
DN
UP
1
ZMU01781
the cord and removing the clip from the en­gine shut-off switch, then turning the main switch to “ ” (off).
EMU27865
Trimming outboard motor
EWM00741
Excessive trim for the operating condi­tions (either trim up or trim down) can cau­se boat instability and can make steering the boat more difficult. This increases 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.
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 im­prove 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.
Operation
EMU27889
Adjusting trim angle (Power trim and tilt)
EWM00754
Be sure all people are clear of the out-
board motor when adjusting the trim an­gle. Body parts can be crushed between the motor and the clamp bracket when the motor is trimmed or tilted.
Use caution when trying a trim position
for the first time. Increase speed gradu­ally and watch for any signs of instability or control problems. Improper trim an­gle can cause loss of control.
If equipped with a power trim and tilt
switch located on the bottom cowling, use the switch only when the boat is at a complete stop with the engine off. Do not adjust the trim angle with this switch while the boat is moving.
Adjust the outboard motor trim angle using the power trim and tilt switch.
1. Trim operating angle
1. Power trim and tilt switch
63
Operation
DN
UP
1
11
1. Power trim and tilt switch
1. 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.
EMU27913
Adjusting boat trim
When the boat is on plane, a bow-up attitude results in less drag, greater stability and effi­ciency. 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 tenden­cy to steer to one side or the other. Compen­sate for this as you steer. When the bow of the boat is down, it is easier to accelerate from a standing start onto plane.
Bow Up
Too much trim-out puts the bow of the boat too high in the water. Performance and econ­omy 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 per­formance further, and the boat may “por­poise” (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. Oper­ating 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 opera­tion difficult and dangerous.
64
Operation
TIP:
N
ZMU01771
N
ZMU07382
ECM00242
Before tilting the outboard motor, stop
the engine by following the procedure on page 62. Never tilt the outboard mo­tor 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.
Depending on the type of boat, the outboard motor trim angle may have little effect on the trim of the boat when operating.
EMU27936
Tilting up and down
If the engine will be stopped for some time or if the boat is moored in shallows, the out­board motor should be tilted up to protect the propeller and lower casing from damage by collision with obstructions, and also to re­duce salt corrosion.
EWM00223
Make sure that no one is near the out­board motor when tilting the outboard motor up or down. Otherwise, body parts could be crushed between the outboard motor and the clamp bracket.
EWM00251
Leaking fuel is a fire hazard. If there is a fuel joint on the outboard motor, discon­nect the fuel line or close the fuel cock if the engine will be tilted for more than a few minutes. Otherwise fuel may leak.
EMU44631
Procedure for tilting up (power trim and tilt models)
(1) Place the remote control lever / gear shift
lever in neutral.
65
Operation
UP
1
ZMU07850
UP
1
1
UP
1
(2) Press the power trim and tilt switch “ ”
(up) until the outboard motor has tilted
up completely.
1. Power trim and tilt switch
1. Power trim and tilt switch
1. Power trim and tilt switch
1. Power trim and tilt switch
(3) Pull the tilt support lever toward you to
support the engine. WARNING! 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 or in the power tilt unit loses pres­sure.
[EWM00263] NOTICE: Do not use the
tilt support lever or knob when traile­ring the boat. The outboard motor could shake loose from the tilt support and fall. If the motor cannot be trailered in the normal running posi­tion, use an additional support device to secure it in the tilt position. For more detailed information, see page
70.
[ECM01642]
66
Operation
1
1
1
DN
ZMU07853
DN
1
1
DN
1. Tilt support lever
EMU42703
Procedure for tilting down
(1) Push the power trim and tilt switch “ ”
(up) until the outboard motor is support-
ed by the tilt rod and the tilt support lever
becomes free. (2) Release the tilt support lever.
1. Tilt support lever
(3) Push the power trim and tilt switch “ ”
(down) to lower the outboard motor to
the desired position.
1. Power trim and tilt switch
1. Power trim and tilt switch
1. Power trim and tilt switch
67
Operation
1
1
N
ZMU01771
N
ZMU04588
1. Power trim and tilt switch
EMU28063
Shallow water
EMU40702
Cruising in shallow water
The outboard motor can be tilted up partially to allow operation in shallow water.
ECM02361
Do not tilt the outboard motor up so that the cooling water inlet on the lower unit is above the surface of the water when set­ting up for and cruising in shallow water. Otherwise severe damage from overheat­ing can result.
1. Cooling water inlet
EMU32914
Procedure for power trim and tilt models
(1) Place the remote control lever / gear shift
lever in neutral.
68
(2) Slightly tilt the outboard motor up to the
desired position using the power trim and tilt switch. WARNING! Using the
power trim and tilt switch on the bot­tom cowling while the boat is moving or engine is on could increase the risk of falling overboard and could distract the operator, increasing the risk of collision with another boat or an ob­stacle.
[EWM01851]
(3) To return the outboard motor to the nor-
mal running position, press the power
trim and tilt switch and slowly tilt the out-
board motor down.
EMU28196
Cruising in other conditions
Cruising in salt water
After operating in salt water, flush the cooling water passages with fresh water to prevent them from becoming clogged. Also rinse the outside of the outboard motor with fresh wa­ter.
Cruising in muddy, turbid, or acidic water
Yamaha strongly recommends that you use
the optional chromium-plated water pump kit (see page 15) if you use the outboard motor in acidic water or water with a lot of sediment in it, such as muddy or turbid (cloudy) water. After operating in such water, flush the cool­ing passages with fresh water to prevent cor­rosion. Also rinse the outside of the outboard motor with fresh water.
Operation
69

Maintenance

EMU31845
Transporting and storing out-
board motor
EWM02641
USE CARE when transporting fuel tank,
whether in a boat or car.
DO NOT fill fuel container to maximum
capacity. Gasoline will expand consider­ably as it warms up and can build up pressure in the fuel container. This can cause fuel leakage and a potential fire hazard.
Leaking fuel is a fire hazard. Tighten se-
curely the fuel valve when transporting and storing the outboard motor.
Never get under the outboard motor
while it is tilted. Severe injury could oc­cur if the outboard motor accidentally falls.
Do not use the tilt support lever or knob
when trailering the boat. The outboard motor could shake loose from the tilt support and fall. If the outboard motor cannot be trailered in the normal run­ning position, use an additional support device to secure it in the tilt position.
ECM02441
When storing the outboard motor for pro­longed time, fuel must be drained from the fuel tank. The deteriorated fuel could clog the fuel line causing engine start difficulty or malfunction.
Leaking fuel is a fire hazard. When trailering the boat, close the fuel valve to prevent fuel from leaking. The outboard motor should be transported and stored in the normal running position. If there is insufficient road clearance in this po-
sition, then trailer the outboard motor in the tilt position using a motor support device such as a transom saver bar. Consult your Yamaha dealer for further details. When the outboard motor is tilted prolonged time for mooring or trailering the boat, close the fuel valve.
EMU44930
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 follow­ing procedures.
ECM04450
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 up­right, port side only), 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 trouble.
Store the outboard motor in a dry, well-
ventilated place, not in direct sunlight.
Drain the remaining gasoline from the
vapor separator. Gasoline left in the va­por separator for a prolonged period of time will break down and could cause damage to the fuel line.
70
EMU28306
TIP:
ZMU08126
1
Procedure
EMU44323
Flushing with the flushing attachment
EWM00323
You could be seriously injured if the en­gine accidentally starts when you are near the propeller. Before inspecting, removing, or install-
ing the propeller, remove the ignition coils from the spark plugs. Also, place the shift control in neutral, turn the main switch to “ ” (off) and remove the key, and remove the clip from the engine shut-off switch. Turn off the battery cut­off switch if your boat has one.
Do not use your hand to hold the propel-
ler when loosening or tightening the propeller nut. Put a wood block between the anti-cavitation plate and the propel­ler to prevent the propeller from turning.
Cooling system flushing is essential to pre­vent the cooling system from clogging up with salt, sand, or dirt. In addition, fogging/lu­bricating of the engine is mandatory to pre­vent excessive engine damage due to rust. Perform the flushing and fogging at the same time.
Maintenance
(1) If there is a fuel joint or a fuel valve on the
boat, disconnect the fuel line from the joint or close the fuel valve.
(2) Wash the exterior of the outboard motor
using fresh water. NOTICE: Do not
spray water into the air intake.
For further information, see page 73. (3) Remove the top cowling and propeller. (4) Install the flushing attachment over the
cooling water inlet, and then turn on the
water supply. NOTICE: Do not run the
engine without supplying it with cool-
ing water. Either the engine water
pump will be damaged or the engine
will be damaged from overheating.
Before starting the engine, be sure to
supply water to the cooling water pas-
sages. Avoid running the outboard
motor at high speed while on the
flushing attachment, otherwise over-
heating could occur.
1. Flushing attachment
[ECM02001]
A flushing attachment is available from your Yamaha dealer. (5) Run the engine at a fast idle for a few mi-
nutes in neutral while supplying fresh wa-
ter. WARNING! Do not touch or
remove electrical parts when starting
or during operation. Keep hands, hair,
and clothes away from the flywheel
[ECM01841]
71
Maintenance
TIP:
TIP:
TIP:
ZMU08100
and other rotating parts while the en­gine is running.
[EWM00092] NOTICE: 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 im­possible 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.
[ECM00193]
When using the flushing attachment, main-
tain adequate water pressure so that there is a steady flow of water from the cooling water pilot hole.
If the overheat alert device is activated, turn
the engine off, and consult your Yamaha dealer.
(6) Just prior to turning off the engine, quick-
ly spray fogging oil into the intake silenc­er. When properly done, the engine will smoke excessively and almost stall.
(7) Turn off the water supply, and then re-
move the flushing attachment and wipe
off any excess water. (8) Install the top cowling and propeller. (9) Drain the cooling water completely out of
the outboard motor. Clean the exterior of
the outboard motor thoroughly.
EMU41321
Draining the gasoline from the vapor sep­arator
Gasoline in the vapor separator must be drained before storing the outboard motor. Have a Yamaha dealer drain the gasoline from the vapor separator.
EMU41072
Lubrication
(1) Change the gear oil. For instructions, see
page 88. Check the gear oil for the pres-
ence of water that indicates a leaky seal.
Seal replacement should be performed
by an authorized Yamaha dealer prior to
use. (2) Lubricate all grease fittings. For further
details, see page 79.
For long-term storage, fogging the engine with fogging oil is recommended. Contact your Yamaha dealer for information about fogging oil and procedures for your outboard motor.
If fogging oil is not available, consult your
Yamaha dealer.
72
EMU40964
Flushing cooling water passage
Perform this procedure right after operation for the most thorough flushing.
ECM01531
Do not perform this procedure while the engine is running. The water pump may be damaged and severe damage from over­heating can result.
Maintenance
TIP:
2 1
23 1
1
(1) Disconnect the garden hose connector
from the fitting on the bottom cowling.
1. Fitting
2. Garden hose connector
(2) Connect the garden hose to the garden
hose connector.
connected, cooling water can leak out
and the engine can overheat during
operation.
[ECM01802]
When flushing the cooling water passages with the boat in the water, tilting the outboard motor up until it is completely out of the water will achieve better results.
EMU44342
Cleaning the outboard motor
When cleaning the outboard motor, the top cowling must be installed. (1) Wash the exterior of the outboard motor
using fresh water. NOTICE: Do not
spray water into the air intake.
[ECM01841]
1. Garden hose
2. Garden hose adapter (commercially avail­able)
3. Garden hose connector
(3) With the engine off, turn on the water
supply and let the water flush through the cooling water passages for about 15 minutes.
(4) Turn off the water supply, and then dis-
connect the garden hose from the gar­den hose connector.
(5) Connect the garden hose connector to
the fitting on the bottom cowling and tighten it securely. NOTICE: If the gar-
den hose connector is not properly
1. Air intake
(2) Drain the cooling water completely out of
the outboard motor. Clean the body thoroughly.
EMU28463
Checking painted surface of outboard motor
Check the outboard motor for scratches, nicks, or flaking paint. Areas with damaged paint are more likely to corrode. If necessary, clean and paint the areas. Touch-up paint is available from your Yamaha dealer.
73
Maintenance
EMU2847G
Periodic maintenance
EWM01872
These procedures require mechanical skills, tools, and supplies. If you do not have the proper skills, tools, or supplies to perform a maintenance procedure, have a
Yamaha dealer or other qualified mechan-
ic do the work. The procedures involve disassembling the motor and exposing dangerous parts. To reduce the risk of injury from moving, hot, or electrical parts: Turn off the engine and keep the key(s)
and engine shut-off cord (lanyard) with you when you perform maintenance un­less otherwise specified.
The power trim and tilt switches operate
even when the ignition key is off. Keep people away from the switches whenev­er working around the motor. When the motor is tilted, keep away from the area under it or between it and the clamp bracket. Be sure no one is in this area before operating the power trim and tilt mechanism.
Allow the engine to cool before handling
hot parts or fluids.
Always completely reassemble the mo-
tor before operation.
EMU34152
Severe operating conditions
Severe operating conditions involve one or more of the following types of operation on a regular basis: Operating continuously at or near maxi-
mum engine speed (rpm) for many hours
Operating continuously at a low engine
speed (rpm) for many hours
Operating without sufficient time for engine
to warm up and cool down
Frequent quick acceleration and decelera-
tion
Frequent shiftingFrequently starting and stopping the en-
gine(s)
Operation that fluctuates often between
light and heavy cargo loads Outboard motors operating under any of these above conditions require more fre­quent maintenance. Yamaha recommends that you do this service twice as often as specified in the maintenance chart. For ex­ample, if a particular service should be done at 50 hours, do it instead at 25 hours. This will help prevent more rapid deterioration of en­gine components.
EMU28512
Replacement parts
If replacement parts are necessary, use only genuine Yamaha parts or parts of equivalent design and quality. Any part of inferior quality may malfunction, and the resulting loss of control could endanger the operator and pas­sengers. Yamaha genuine parts and acces­sories are available from your Yamaha dealer.
74
Maintenance
TIP:
EMU46073
Maintenance chart 1
Refer to the sections in this chapter for explanations of each owner-specific action.The maintenance cycle on these charts assume usage of 100 hours per year and regular
flushing of the cooling water passages. Maintenance frequency should be adjusted when operating the engine under adverse conditions such as extended trolling.
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, muddy, other turbid (cloudy), acidic 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.
Initial Every
Item Actions
Anode(s) (external)
Anode(s) (internal) *1
Anode(s) (internal) *2
Battery (electro­lyte level, terminal)
Battery (electro­lyte level, terminal)
Cooling water leakage
Cowling lock lever Inspection 50, 52
Engine starting condition/noise
Engine idle speed/noise
Engine oil Replacement 82
Engine oil filter (cartridge)
Inspection or re­placement as nec­essary
Inspection or re­placement as nec­essary
Replacement
Inspection 90
Fill, charging or re­placing as neces­sary
Inspection or re­placement as nec­essary
Inspection 54
Inspection 82
Replacement 84
20 hours
(3
months)
100 hours
(1 year)
300 hours
(3 years)
500 hours
(5 years)
Page
89
75
Maintenance
Initial Every
Item Actions
Fuel filter (can be disassembled)
Fuel line (High pressure)
Fuel line (High pressure)
Fuel line (Low pressure)
Fuel line (Low pressure)
Fuel pump
Fuel/engine oil leakage
Gear oil Replacement 88
Greasing points Greasing 79
Clamp bracket bolt (through tube)
Impeller/water pump housing
Impeller/water pump housing
Power trim and tilt unit
Propeller/propeller nut/cotter pin
PCV (Pressure Control Valve)
Shift link/shift ca­ble
Spark plug(s)
Inspection or re­placement as nec­essary
Inspection
Inspection or re­placement as nec­essary
Inspection
Inspection or re­placement as nec­essary
Inspection or re­placement as nec­essary
Inspection
Inspection and greasing
Inspection or re­placement as nec­essary
Replacement
Inspection 53
Inspection or re­placement as nec­essary
Inspection or re­placement as nec­essary
Inspection, adjust­ment or replace­ment as necessary
Inspection or re­placement as nec­essary
20 hours
(3
months)
100 hours
(1 year)
300 hours
(3 years)
500 hours
(5 years)
Page
51
86
80
76
Maintenance
Initial Every
Item Actions
Spark plug caps/spark plug wires (F115, LF115)
Ignition coils/igni­tion coil leads (F130)
Shift Dampener System (SDS) pro­peller damper
Water from the cooling water pilot hole
Throttle link/throt­tle cable
Thermostat
Timing belt
Valve clearance
Cooling water inlet Inspection 18
Main switch/stop switch
Wire harness con­nections/wire cou­pler connections
(Yamaha) Me­ter/gauge
EMU46030
Inspection or re­placement as nec­essary
Inspection or re­placement as nec­essary
Inspection or re­placement
Inspection 58
Inspection, adjust­ment or replace­ment as necessary
Inspection or re­placement as nec­essary
Inspection or re­placement as nec­essary
Inspection and ad­justment
Inspection or re­placement as nec­essary
Inspection or re­placement as nec­essary
Inspection
20 hours
(3
months)
100 hours
(1 year)
300 hours
(3 years)
500 hours
(5 years)
Page
*1 cylinder head *2 cylinder block, cooling water passage, exhaust joint, exhaust manifold, exhaust guide
77
Maintenance
EMU46082
Maintenance chart 2
Item Actions
Exhaust guide/ex­haust manifold
Timing belt Replacement
Inspection or re­placement as nec­essary
Every
1000 hours
Page
78
EMU28946
ZMU08103
Greasing
Yamalube grease A (water resistant grease) Yamaha grease D (corrosion resistant grease; for propeller shaft)
Maintenance
79
Maintenance
1
1
2
1
1
1
1
EMU46322
Inspecting spark plug
The spark plug is an important engine com­ponent. The condition of the spark plug can indicate something about the condition of the engine. For example, if the center electrode porcelain is very white, this could indicate an intake air leak or carburetion problem in that cylinder. Do not attempt to diagnose any problems yourself. Instead, take the out­board motor to a Yamaha dealer. You should periodically remove and check the spark plug because heat and deposits will cause the spark plug to slowly break down and erode. To remove the spark plug (1) Remove the cover.
1. Spark plug cap
(3) F130: Remove the bolt that is securing
the ignition coil, and then remove the ig­nition coil. NOTICE: Do not use any
tools to remove or install the ignition coil. Otherwise, the ignition coil cou­pler could be damaged.
[ECM02331]
1. Cover
(2) F115, LF115: Remove the spark plug
cap from the spark plug.
80
1. Bolt
2. Ignition coil
(4) Remove the spark plug. WARNING!
When removing or installing a spark plug, be careful not to damage the in­sulator. A damaged insulator could al­low external sparks, which could lead to explosion or fire.
[EWM00562]
F115, LF115
TIP:
ZMU08119
ZMU08215
11
22
33
F130
To check the spark plug (1) Check the condition of the spark plug. If
electrode erosion becomes excessive or carbon and other deposits are exces­sive, replace the spark plug with the specified plug.
Standard spark plug:
LKR6E
(2) Measure the spark plug gap using a
thickness gauge. If the spark plug gap is out of specification, replace the spark plug with the specified plug.
Maintenance
1. Spark plug gap
2. Spark plug part number
3. Spark plug I.D. mark (NGK)
Spark plug gap:
0.8–0.9 mm (0.031–0.035 in)
To install the spark plug (1) Wipe off any dirt from the threads, insu-
lator, and gasket surface of the spark plug.
(2) Install the spark plug, and then tighten it
to the specified torque.
Spark plug tightening torque:
25 N·m (2.5 kgf·m, 18 lb·ft)
If a torque-wrench is not available when you are reinstalling a spark plug, a good estimate of the correct torque is 1/12 turn past finger­tight. When you are installing a new spark plug, a good estimate of the correct torque is 1/2 turn past finger-tight. (3) F115, LF115: Install the spark plug cap. (4) F130: Install the ignition coil, and then
tighten the bolt to the specified torque.
Bolt tightening torque:
8 N·m (0.8 kgf·m, 5.9 lb·ft)
(5) Install the cover.
81
Maintenance
ZMU08105
EMU29045
Inspecting idle speed
EWM00452
Do not touch or remove electrical parts
when starting or during operation. Keep hands, hair, and clothes away
from the flywheel and other rotating
parts while the engine is running.
ECM00491
This procedure must be performed while the outboard motor is in the water. A flush­ing attachment or test tank can be used.
If the boat is not equipped with a tachometer for the outboard motor, use a diagnostic ta­chometer for this procedure. Results may vary depending on whether testing is con­ducted with the flushing attachment, in a test tank, or with the outboard motor in the water. (1) Start the engine and allow it to warm up
fully in neutral until it is running smoothly.
(2) Once the engine has warmed up, verify
whether the idle speed is set to specifi­cation. For idle speed specifications, see page 11. If you have difficulty verifying the idle speed, or the idle speed requires adjustment, consult a Yamaha dealer or other qualified mechanic.
EMU38808
Changing engine oil
EWM00761
Avoid draining the engine oil immediate-
ly after stopping the engine. The oil is
hot and should be handled with care to
avoid burns. Be sure the outboard motor is securely
fastened to the transom or a stable
stand.
ECM01711
Change the engine oil after the first 20 hours of operation or 3 months, and every 100 hours or at 1-year intervals thereafter. Otherwise the engine will wear quickly.
To prevent spilling oil where it could cause damage to nature, it is strongly recommend­ed that you use an oil changer to change the engine oil. If an oil changer is not available, drain the engine oil by removing the drain screw. If you are not familiar with the proce­dure for changing the engine oil, consult your Yamaha dealer. (1) Put the outboard motor in an upright po-
sition (not tilted). NOTICE: If the out-
board motor is not level, the oil level indicated on the oil dipstick may not be accurate.
[ECM01862]
(2) Start the engine. Warm it up and keep
the idle speed for 5-10 minutes.
(3) Stop the engine and leave it for 5-10 mi-
nutes. (4) Remove the top cowling. (5) Remove the oil filler cap. Pull out the dip-
stick and use the oil changer to extract
the oil completely.
82
Maintenance
TIP:
TIP:
TIP:
1
1
2
1
1. Oil filler cap
1. Oil changer
When using an oil changer, skip steps 6 and
7. (6) Prepare a suitable container that holds a
larger amount than the engine oil capac­ity. Remove the drain screw and gasket while holding the container under the drain hole. Let the oil drain completely. Wipe up any spilled oil immediately.
1. Drain screw
2. Gasket
If the oil does not drain easily, change the tilt angle or turn the outboard motor to port and starboard to drain the oil. (7) Put a new gasket on the oil drain screw.
Apply a light coat of oil to the gasket and
install the drain screw.
Drain screw tightening torque:
27 N·m (2.7 kgf·m, 20 lb·ft)
If a torque wrench is not available when you are installing the drain screw, finger tighten the screw just until the gasket comes into contact with the surface of the drain hole. Then tighten 1/4 to 1/2 turn more. Tighten the drain screw to the correct torque with a torque wrench as soon as possible. (8) Add the correct amount of oil through the
filler hole. Put back the filler cap and the
dipstick. NOTICE: Overfilling the oil
could cause leakage or damage. If the
oil level is above the upper level mark,
drain until the level meets the speci-
fied capacity.
[ECM01851]
83
Maintenance
TIP:
1
3 2
Recommended engine oil:
YAMALUBE 4 or 4-stroke outboard motor oil Engine oil quantity (without oil filter replacement):
3.0 L (3.17 US qt, 2.64 Imp.qt) Engine oil quantity (with oil filter re­placement):
3.2 L (3.38 US qt, 2.82 Imp.qt)
(9) Leave the outboard motor for 5-10 minu-
tes.
(10) Remove the oil dipstick and wipe it
clean.
(11) Insert the dipstick and remove it again.
Be sure to completely insert the dipstick into the dipstick guide, otherwise the oil level measurement will be incorrect.
(12) Recheck the oil level using the dipstick to
be sure the level falls between the upper and lower marks. Consult your Yamaha dealer if the oil level is out of specified level.
problem could cause severe engine damage. Consult your Yamaha dealer if the problem cannot be located and corrected.
[ECM01623]
(14) Install the top cowling. (15) Dispose of used oil according to local
regulations.
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.
EMU48110
Replacing the engine oil filter
EWM00761
Avoid draining the engine oil immediate-
ly after stopping the engine. The oil is hot and should be handled with care to avoid burns.
Be sure the outboard motor is securely
fastened to the transom or a stable stand.
1. Oil dipstick
2. Upper mark
3. Lower mark
(13) Start the engine and make sure that the
low oil pressure-alert indicator remains off. Also, make sure that there are no oil leaks. NOTICE: If the low oil pressure-
alert indicator comes on or if there are oil leaks, stop the engine and find the cause. Continued operation with a
84
Yamaha recommends you to have a Yamaha dealer replace the engine oil filter. If you perform replacement yourself, follow the procedure below. If you have any ques­tions, please consult a Yamaha dealer. (1) Drain the engine oil. For further informa-
tion, see page 82. (2) Place a cloth under the engine oil filter. (3) Turn the engine oil filter counterclock-
wise and remove it.
TIP:
Wipe up any spilled engine oil.
1
Dispose of the removed engine oil filter in
accordance with local regulations.
(4) Apply engine oil to the O-ring of the en-
gine oil filter.
Maintenance
Engine oil filter:
18 N·m (1.8 kgf·m, 13 lb·ft)
(6) Fill up the engine with engine oil. For fur-
ther information, see page 82.
EMU48060
Why Yamalube
YAMALUBE oil is a Genuine YAMAHA Part born of the engineers’ passion and belief that engine oil is an important liquid engine com­ponent. We form teams of specialists in the fields of mechanical engineering, chemistry, electronics and track testing, and have them develop the engine together with the oil it will use. Yamalube oils take full advantage of the base oil’s qualities and blend in the ideal ba­lance of additives to make sure the final oil clears our performance standards. Thus, Yamalube mineral, semisynthetic and syn­thetic oils have their own distinct characters and value. Yamaha’s experience gained over many years of research and development into oil since the 1960’s helps make Yamalube the best choice for your Yamaha engine.
1. O-ring
(5) Turn the engine oil filter clockwise and
tighten it to the specified torque.
EMU29116
Inspecting wiring and connectors
Inspect that each connector is engaged se-
curely.
Inspect that each ground lead is properly
secured.
85
Maintenance
ZMU08109
ZMU08110
ZMU07854
ZMU08131
and remove the clip from the engine shut­off switch. Turn off the battery cut-off switch if your boat has one.
Do not use your hand to hold the propeller when loosening or tightening the propeller nut. Put a wood block between the anti-cavi­tation plate and the propeller to prevent the propeller from turning.
Checkpoints Check each of the propeller blades for ero-
sion from cavitation or ventilation, or other damage.
Check the propeller shaft for damage.Check the splines for wear or damage.Check for fish line tangled around the pro-
peller shaft.
EMU32113
Checking propeller
EWM01882
You could be seriously injured if the en­gine accidentally starts when you are near the propeller. Before inspecting, remov­ing, or installing the propeller, place the shift control in neutral, turn the main switch to “ ” (off) and remove the key,
86
Check the propeller shaft oil seal for dam-
age.
Maintenance
3
2
1
5
6
4
3
2
1
5
6
4
EMU42632
Removing propeller
(1) Straighten the cotter pin and pull it out
using a pair of pliers.
(2) Remove the propeller nut, washer, and
spacer. WARNING! Do not use your
hand to hold the propeller when loos­ening the propeller nut.
1. Cotter pin
2. Propeller nut
3. Washer
4. Spacer
5. Propeller
6. Thrust washer
(3) Remove the propeller, spacer (if
equipped), and thrust washer.
[EWM01891]
ECM00502
Make sure to use a new cotter pin and bend the ends over securely. Otherwise, the propeller could come off during oper­ation and be lost.
(1) Apply Yamalube Marine Grease or a cor-
rosion resistant grease to the propeller
shaft. (2) Install the thrust washer, spacer (if
equipped), and propeller on the propeller
shaft. NOTICE: Make sure to install the
thrust washer before installing the
propeller. Otherwise, the lower case
and propeller boss could be damaged.
[ECM01882]
(3) Install the spacer, washer, and propeller
nut. Tighten the propeller nut to the
specified torque.
EMU42646
Installing propeller
EWM00771
On counter rotation models, be sure to use a propeller intended for counterclock­wise 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 from that expected.
1. Cotter pin
2. Propeller nut
3. Washer
4. Spacer
5. Propeller
6. Thrust washer
Propeller nut tightening torque:
54 N·m (5.4 kgf·m, 40 lb·ft)
(4) Align the propeller nut slot with the pro-
peller shaft hole. Insert a new cotter pin
in the hole and bend the cotter pin ends.
87
Maintenance
TIP:
TIP:
1
ZMU06956
1
2
1
2
NOTICE: Do not reuse the cotter pin. Otherwise, the propeller can come off during operation.
1. Cotter pin
[ECM01892]
If the propeller nut slot does not align with the propeller shaft hole after tightening the pro­peller nut to the specified torque, tighten the nut further to align the slot with the hole.
EMU47100
Changing gear oil
EWM00801
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 accidentally falls.
the screw is normal. Simply remove
them. NOTICE: If there is an excessive
quantity of metal particles on the
magnetic gear oil drain screw, this
can indicate lower unit problem. Con-
sult your Yamaha dealer.
1. Gear oil drain screw
2. Gasket
[ECM01901]
Always use new gaskets. Do not reuse the re­moved gaskets. (4) Remove the oil level plug and gasket to
allow the oil to drain completely.
NOTICE: Check the used gear oil after
it has been drained. If the gear oil is
milky or contains water or a large
amount of metal particles, the gear
case may be damaged. Have a
Yamaha dealer check and repair the
outboard motor.
[ECM00714]
(1) Tilt the outboard motor so that the gear
oil drain screw is at the lowest point pos­sible.
(2) Place a suitable container under the gear
case.
(3) Remove the gear oil drain screw and
gasket. The screw is magnetic so a small quantity of metal particles on the end of
88
1. Gasket
Maintenance
TIP:
TIP:
TIP:
ZMU08122
2. Oil level plug
For disposal of used oil, consult your Yamaha dealer. (5) Put the outboard motor in a vertical posi-
tion. Using a flexible or pressurized filling device, inject the gear oil into the gear oil drain screw hole.
Recommended gear oil:
YAMALUBE outboard gear oil or Hyp­oid gear oil
Recommended gear oil grade:
SAE 90 API GL-4 / SAE 80W API GL­5 / SAE 90 API GL-5
Gear oil quantity:
0.715 L (0.756 US qt, 0.629 Imp.qt) (LF115B)
0.760 L (0.803 US qt, 0.669 Imp.qt) (F115B, F130A)
(7) Put a new gasket on the gear oil drain
screw. Insert and tighten the gear oil
drain screw to the specified torque.
Apply a light coat of gear oil to the gear oil drain screw thread and gasket before instal­lation.
Tightening torque:
7 N·m (0.7 kgf·m, 5.2 lb·ft)
EMU29318
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.
ECM00721
Do not paint anodes, as this would render them ineffective.
(6) Put a new gasket on the oil level plug.
When the oil begins to flow out of the oil level plug hole, insert and tighten the oil level plug to the specified torque.
Apply a light coat of gear oil to the oil level plug thread and gasket before installation.
Tightening torque:
7 N·m (0.7 kgf·m, 5.2 lb·ft)
89
Maintenance
TIP:
1
1
1. Anode
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 pow­er unit.
EMU29324
Checking battery (for electric start models)
EWM01903
The procedure for checking the battery varies for different batteries. This procedure con­tains typical checks that apply to many bat­teries, but you should always refer to the battery manufacturer’s instructions.
ECM01921
A poorly maintained battery will quickly deteriorate.
(1) Check the electrolyte level.
(2) Check the battery’s charge. If your boat
is equipped with the digital speedome-
ter, the voltmeter and low battery alert
functions will help you monitor the bat-
tery’s charge. If the battery needs charg-
ing, consult your Yamaha dealer. (3) Check the battery connections. They
should be clean, secure, and covered by
an insulating cover. WARNING! Bad
connections can produce shorting or
arcing and cause an explosion.
[EWM01913]
Battery electrolyte is poisonous and caus­tic, and batteries generate explosive hy­drogen gas. When working near the battery: Wear protective eye gear and rubber
gloves.
Do not smoke or bring any other source
of ignition near the battery.
90
EMU29335
Connecting the battery
EWM00573
Mount the battery holder securely in a dry, well-ventilated, vibration-free location in the boat. Install a fully charged battery in the holder.
Maintenance
ZMU01811
1
2
3
ECM01125
Do not reverse the battery cables. Other­wise, the electrical parts could be dam­aged.
(1) Make sure the main switch (on applica-
ble models) is “ ” (off) before working on the battery.
(2) Connect the red battery cable to the
POSITIVE (+) terminal first. Then connect the black battery cable to the NEGATIVE (-) terminal.
1. Red cable
2. Black cable
3. Battery
(3) The electrical contacts of the battery and
cables must be clean and properly con­nected, or the battery will not start the engine.
(3) Disconnect the positive cable(s) and re-
move the battery from the boat. (4) Clean, maintain, and store the battery
according to the manufacturer’s instruc-
tions.
EMU29372
Disconnecting the battery
(1) Turn off the battery cut-off switch (if
equipped) and main switch. NOTICE: If
they are left on, the electrical system can be damaged.
(2) Disconnect the negative cable(s) from
the negative (-) terminal. NOTICE: Al-
ways disconnect all negative (-) cables first to avoid a short circuit and dam­age to the electrical system.
[ECM01931]
[ECM01941]
91

Trouble Recovery

EMU47140
Troubleshooting
This section describes the likely causes and remedies for problems, such as those in the fuel, compression, and ignition systems, poor starting, and loss of power. Please note that all of the items in this section may not apply to your model. If your outboard motor requires repair, bring it to a Yamaha dealer. If the engine trouble-alert indicator is blinking, consult your Yamaha dealer.
Starter will not operate.
Q. Is remote control lever in gear? A. Shift to neutral.
Q. Is battery capacity low or weak? A. Check battery condition. Use battery of recommended capacity.
Q. Are battery connections corroded or loose? A. Tighten battery cables and clean battery terminals.
Q. Is fuse for starter relay or electric circuit blown? A. Check for cause of electric overload and repair. Replace fuse with one of correct am­perage.
Q. Are starter components malfunctioning? A. Have serviced by a Yamaha dealer.
Engine will not start (starter operates).
Q. Is clip on engine shut-off cord (lanyard) in­stalled? A. Install clip to engine shut-off switch.
A. Fill tank with clean, fresh fuel.
Q. Is fuel contaminated or stale? A. Fill tank with clean, fresh fuel.
Q. Is fuel filter clogged? A. Clean or replace fuel filter.
Q. Is starting procedure incorrect? A. See page 55.
Q. Is fuel pump malfunctioning? A. Have serviced by a Yamaha dealer.
Q. Are spark plugs fouled or of incorrect ty­pe? A. Inspect spark plugs. Clean or replace with recommended type.
Q. Are spark plug caps fitted incorrectly? A. Check and re-fit caps.
Q. Are ignition parts malfunctioning? A. Have serviced by a Yamaha dealer.
Q. Is ignition wiring damaged or poorly con­nected? A. Inspect wires for breaks and wear. Have connections tightened and broken or worn wires replaced by a Yamaha dealer.
Q. Are engine inner parts damaged? A. Have serviced by a Yamaha dealer.
Engine idles irregularly or stalls.
Q. Are spark plugs fouled or of incorrect ty­pe? A. Inspect spark plugs. Clean or replace with recommended type.
Q. Is fuel tank empty?
92
Q. Is fuel system clogged?
Trouble Recovery
A. Inspect 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 fuel filter.
Q. Are ignition parts malfunctioning? A. Have serviced by a Yamaha dealer.
Q. Has alert system activated? A. Find and correct cause of alert.
Q. Is spark plug gap incorrect? A. Replace spark plug.
Q. Is ignition wiring damaged or poorly con­nected? A. Inspect wires for breaks and wear. Have connections tightened and broken or worn wires replaced by a Yamaha dealer.
Q. Is specified engine oil not being used? A. Inspect engine oil and replace with speci­fied type.
Q. Is thermostat clogged or malfunctioning? A. Have serviced by a Yamaha dealer.
Q. Is fuel pump malfunctioning? A. Have serviced by a Yamaha dealer.
Q. Is fuel tank air vent restricted or clogged? A. Remove obstruction.
Q. Is outboard motor angle too high? A. Return to normal operating position.
Q. Is fuel joint connection incorrect?
A. Connect correctly.
Q. Is throttle cable adjustment incorrect? A. Have serviced by a Yamaha dealer.
Q. Is battery cable disconnected? A. Connect securely.
Alert buzzer sounds or indicator lights.
Q. Is cooling system clogged? A. Inspect cooling water inlet for obstruc­tions.
Q. Is low oil pressure-alert indicator on or blinking? A. Have serviced by a Yamaha dealer.
Q. Is heat range of spark plugs incorrect? A. Inspect spark plugs and replace with rec­ommended type.
Q. Is specified engine oil not being used? A. Inspect engine oil and replace with speci­fied type.
Q. Is engine oil contaminated or deteriorat­ed? A. Replace engine oil with specified type.
Q. Is oil filter clogged? A. Have serviced by a Yamaha dealer.
Q. Is oil pump malfunctioning? 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 thermostat or water pump malfunction­ing?
93
Trouble Recovery
A. Have serviced by a Yamaha dealer.
Q. Is there excess water in fuel filter? A. Drain fuel filter.
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 out­board motor at its recommended speed (r/min) range.
Q. Is outboard motor mounted at incorrect height on transom? A. Have outboard motor adjusted to proper transom height.
Q. Has alert system activated? A. Find and correct cause of alert.
Q. Is boat bottom fouled with marine growth? A. Clean boat bottom.
Q. Are spark plugs fouled or of incorrect ty­pe? A. Inspect spark plugs. Clean or replace with recommended type.
Q. Are weeds or other foreign material tan­gled on gear housing? A. Remove foreign material and clean lower unit.
A. Clean or replace fuel filter.
Q. Is fuel contaminated or stale? A. Fill tank with clean, fresh fuel.
Q. Is spark plug gap incorrect? A. Replace spark plug.
Q. Is ignition wiring damaged or poorly con­nected? A. Inspect wires for breaks and wear. Have connections tightened and broken or worn wires replaced by a Yamaha dealer.
Q. Are electrical parts malfunctioning? 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. Replace engine oil with specified type.
Q. Is thermostat clogged or malfunctioning? A. Have serviced by a Yamaha dealer.
Q. Is fuel tank air vent restricted or clogged? A. Remove obstruction.
Q. Is fuel pump malfunctioning? A. Have serviced by a Yamaha dealer.
Q. Is fuel joint connection incorrect? A. Connect correctly.
Q. Is fuel system clogged? A. Inspect for pinched or kinked fuel line or other obstructions in fuel system.
Q. Is fuel filter clogged?
94
Q. Is heat range of spark plugs incorrect? A. Inspect spark plugs and replace with rec­ommended type.
Q. Is engine not responding properly to re­mote control lever position?
Loading...