Yamaha FL425ASTX v12 Owner's Manual
en
Read this manual carefully before operating this outboard motor.
OWNERS MANUAL
F425A FL425A
6GR-28199-70-E0
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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.
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Important manual information EMU25108
To the owner Thank you for selecting a Yamaha outboard motor. This Owners Manual contains infor- mation needed for proper operation, mainte- nance 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 Owners 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 haz- ards. Obey all safety messages that follow this symbol to avoid possible injury or death.
WARNING EWM00782
A WARNING indicates a hazardous situa- tion which, if not avoided, could result in death or serious injury.
NOTICE ECM00702
A NOTICE indicates special precautions that must be taken to avoid damage to the outboard motor or other property.
TIP: A TIP provides key information to make pro- cedures easier or clearer.
Yamaha continually seeks advancements in product design and quality. Therefore, while this manual contains the most current prod- uct information available at the time of print- ing, there may be minor discrepancies
between your machine and this manual. If there is any question concerning this manual, please consult your Yamaha dealer. To ensure long product life, Yamaha recom- mends that you use the product and perform the specified periodic inspections and main- tenance by correctly following the instruc- tions in the owners manual. Any damage resulting from neglect of these instructions is not covered by warranty. Some countries have laws or regulations re- stricting 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 war- ranty may not apply in certain regions. When planning to take the product to another coun- try, consult the dealer where the product was purchased for further information. If the product was purchased used, please consult your closest dealer for customer re- registration, and to be eligible for the speci- fied services.
TIP: The F425AST, FL425AST and the standard accessories are used as a base for the expla- nations and illustrations in this manual. Therefore some items may not apply to every model. EMU47970
F425, FL425 OWNERS MANUAL
2018 by Yamaha Motor Co., Ltd. 1st Edition, April 2018
All rights reserved. Any reprinting or unauthorized use without the written permission of
Yamaha Motor Co., Ltd. is expressly prohibited. Printed in Netherlands
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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........................................ 2 Avoid collisions .................................. 3 Weather .............................................. 3 Passenger training ............................. 3 Boating safety publications................ 3 Laws and regulations ......................... 3
General information ..........................4 Identification numbers record ......... 4
Outboard motor serial number........... 4 Digital electronic control serial
number............................................ 4 Key number........................................ 5
EC Declaration of Conformity (DoC) ............................................ 5
CE 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
Digital electronic control requirements.............................. 12
Battery requirements .................... 13 Battery specifications....................... 13
Propeller selection ........................ 13 Counter rotation models .................. 14
Start-in-gear protection ................ 14 Engine oil requirements ................ 14 Fuel requirements ......................... 15
Gasoline ........................................... 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 Helm Master................................... 24 Yamaha Security System (Y-COP)... 24 Digital electronic control................... 24 Digital electronic control-active
indicator ........................................ 25 Digital electronic control-alert
indicator ........................................ 25 Control lever ..................................... 25 Free throttle switch........................... 26 Throttle friction adjuster ................... 27 Station selector switch..................... 27 Engine selector switch ..................... 27 Engine shut-off cord (lanyard) and
clip ................................................ 27 Main switch ...................................... 28 Start/Stop switch panel.................... 29 All Start/Stop switch panel............... 29 Power trim and tilt switch on digital
electronic control .......................... 29 Power trim and tilt switch on bottom
cowling.......................................... 29 Power trim and tilt switches ............. 30 Tilt limiter .......................................... 30
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Table of contents
Tilt support lever for power trim and tilt model ....................................... 31
Cowling lock lever ............................ 31 Flushing device ................................ 31 Fuel filter........................................... 32
Instruments and indicators ............ 33 CL7 Display................................... 33
Engine control system .................... 36 Alert system .................................. 36
Helm Master control system alert .... 36 Digital Electronic Control alert ......... 36 Overheat alert................................... 36 Low oil pressure alert ....................... 37 Water separator alert........................ 38
Installation .......................................39 Installation ..................................... 39
Mounting the outboard motor .......... 39
Operation ......................................... 41 First-time operation....................... 41
Filling engine oil................................ 41 Breaking in engine............................ 41 Getting to know your boat ............... 41
Checks before starting engine ...... 42 Fuel level .......................................... 42 Removing top cowling ..................... 42 Fuel system ...................................... 42 Controls............................................ 43 Engine shut-off cord (lanyard) .......... 43 Engine oil.......................................... 43 Outboard motor ............................... 44 Flushing device ................................ 44 Installing top cowling ....................... 44 Checking power trim and tilt
system .......................................... 46 Battery.............................................. 47
Filling fuel ..................................... 47 Operating engine........................... 47
Sending fuel ..................................... 48 Change of station............................. 48
Starting engine ................................. 48 Checks after starting engine......... 52
Cooling water ................................... 52 Warming up engine....................... 53
Procedure for warming up engine.... 53 Checks after engine warm up....... 53
Shifting ............................................. 53 Stop switches................................... 53
Operating the port, center, and starboard outboard motors ....... 53
Selecting the outboard motor using the engine selector switch (triple engines) ........................... 55
Shifting.......................................... 56 Stopping boat ............................... 57 Boat direction ............................... 58 Trolling .......................................... 60
Adjusting trolling speed.................... 60 Stopping engine............................ 61
Procedure for stopping engine......... 61 Trimming outboard motor............. 61
Adjusting trim angle (Power trim and tilt) .......................................... 62
Adjusting boat trim ........................... 63 Tilting up and down ...................... 63
Procedure for tilting up (power trim and tilt models) ............................. 64
Procedure for tilting down................ 65 Shallow water .............................. 66
Cruising in shallow water ................. 66 Operating in other conditions ....... 67
Maintenance.................................... 68 Transporting and storing outboard
motor ......................................... 68 Storing outboard motor.................... 68 Lubrication ....................................... 68 Flushing cooling water passage....... 69 Cleaning the outboard motor ........... 70 Checking painted surface of
outboard motor ............................. 70 Periodic maintenance ................... 70
Replacement parts ........................... 70
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Table of contents
Severe operating conditions ............ 70 Maintenance chart 1 ........................ 71 Maintenance chart 2 ........................ 73 Greasing........................................... 75 Inspecting spark plug....................... 77 Inspecting engine idle speed ........... 77 Changing engine oil.......................... 77 Inspecting wiring and connectors .... 77 Inspecting propeller ......................... 77 Removing propeller .......................... 78 Installing propeller ............................ 78 Changing gear oil ............................. 79 Inspecting and replacing anode(s) ... 81 Checking battery (for electric start
models) ......................................... 81 Connecting the battery..................... 82 Disconnecting the battery ................ 84 Storing the battery ........................... 84
Trouble Recovery ............................ 85 Troubleshooting ............................ 85 Temporary action in emergency ... 88
Impact damage ................................ 88 Running in an emergency (twin
engines or triple engines).............. 88 Replacing fuse ................................. 89 Power trim and tilt unit will not
operate.......................................... 90 Steer-by-wire system will not
operate.......................................... 90 Water separator-alert is activated
after leaving port........................... 91 Treatment of submerged motor .... 92
INDEX ............................................... 93
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1
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 neu- tral, 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 be- come entangled with internal rotating parts of the engine, resulting in serious injury or death. Keep the top cowling in place whenever pos- sible. Do not remove or replace the top cowl- ing with the engine running. Only operate the engine with the top cowling removed according to the specific instruc- tions 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 en- gine has cooled. EMU33651
Electric shock Do not touch any electrical parts while start- ing or operating the engine. They can cause shock or electrocution.
EMU33661
Power trim and tilt Body parts can be crushed between the mo- tor 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 be 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. Se- vere 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 peo- ple stranded, or running over people or ob- jects. 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 at- tach the cord to clothing that could tear loose, or route the cord where it could be- come entangled, preventing it from function- ing. 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 ob- jects forward.
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Safety information
2
EMU33811
Gasoline Gasoline and its vapors are highly flamma- ble and explosive. Always, refuel according to the procedure on page 47 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, immedi- ately wash with soap and water. Change clothing if gasoline spills on it. If you swallow gasoline, inhale a lot of gaso- line 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 con- tain 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 mo- tor. Modifications to your outboard motor may reduce safety and reliability, and render the outboard unsafe or illegal to use. EMU33741
Boating safety This section includes a few of the many im- portant 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 com- mon 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 wa- ter, such as swimmers, skiers, or divers, whenever the engine is running. When some- one 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 manufacturers instruc- tions for details about appropriate passenger locations in your boat and be sure all passen- gers are positioned properly before acceler- ating 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 direc- tion. Even when people are positioned prop- erly, alert your passengers if you must make any unusual maneuver. Always avoid jump- ing waves or wakes. EMU33763
Overloading Do not overload the boat. Consult the boat capacity plate or boat manufacturer for max- imum weight and number of passengers. Be sure that weight is properly distributed ac- cording to the boat manufacturers instruc-
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Safety information
3
tions. Overloading or incorrect weight distribution can compromise the boats han- dling and lead to an accident, capsizing or swamping. EMU33773
Avoid collisions Scan constantly for people, objects, and oth- er 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 un- derstand 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 an- other direction.
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 boatingand obey them. Several sets of rules prevail according to geographic location, but all are basically the same as the International Rules of the Road.
ZMU06025
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General information
4
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 sto- len.
EMU34944
Digital electronic control serial num- ber The digital electronic control serial number is stamped on the label attached to the digital electronic control box. Record your digital electronic control serial number in the spaces provided to assist you in newly connecting the digital electronic control to the outboard motor.
TIP: Consult your Yamaha dealer if you have any questions concerning the digital electronic control serial number.
1. Outboard motor serial number location
1. Serial number 2. Model name 3. Motor transom height 4. Approved model code
1
34 12
ZMU01692
1. Digital electronic control serial number loca- tion
1. Digital electronic control serial number loca- tion
ZMU05885
1
ZMU05887
1
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General information
5
EMU41572
Key number The key identification number is stamped on the spare key as shown in the illustration. Keep the spare key in a safe place and record this number in the space provided for refer- ence in case that you need a new key.
EMU38982
EC Declaration of Conformity (DoC)
This declaration is included with outboard motors that conform to European regula- tions. This outboard motor conforms to certain por- tions of the European Parliament directive re- lating to machinery. Each conformed outboard motor accompa- nied with EC DoC.EC DoC contains the fol- lowing information; Name of engine manufacturer Model name Product code of model (Approved model
code) Code of conformed directives EMU38995
CE Marking This label is affixed to outboard motors that conform to European regulations. Outboard motors affixed with this CE mark- ing conform with the directives of; 2006/42/EC, 94/25/EC - 2003/44/EC, 2014/30/EU, and 2004/108/EC, 2013/53/EU.
1. Serial number 2. Type 3. Approved model code
1. Key number
23 1
ZMU05917
1
ZMU01694
1. Key number
1
ZMU07133
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General information
6
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.
Regulatory Compliance Mark (RCM) Engines affixed with this mark conform to certain portion(s) of the Australian Radio Communications Act.
ICES-002 Compliance Label Engines affixed with this mark meet all re- quirements of the Canadian Interference Causing Equipment Regulations.
1. CE marking location
1. Compliance mark label location
1
ZMU08148
2500 SHINGAI, IWATA, SHIZUOKA, JAPAN
YAMAHA MOTOR CO., LTD.
YAMAHA
1
1. Regulatory Compliance Mark (RCM)
1. ICES-002 Compliance Label
ZMU08190 1
ZMU08191
1
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General information
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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.
2
2
1
1
4
3
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General information
8
EMU47880
Contents of labels The above warning labels mean as follows. 1
WARNING 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
WARNING EWM01672
Read Owners Manuals and labels. Wear an approved personal flotation de-
vice (PFD).
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.
3
WARNING EWM04450
Vapor separator tank (VST) contains pres- surized fuel. To reduce the risk of spraying fuel during VST service: 1. Wrap fuel hose connector in a cloth then disconnect hose slowly to release pres- sure. 2. Remove band from fuel nipple. 3. Open drain cap to drain the fuel from VST.
6EE-G2794-40
6EE-H1994-40
1
3
2
6EE-G2794-50
6EE-H1994-50
1
2
3
WARNING Vapor separator tank (VST) contains pressurized fuel. To reduce the risk of spraying fuel during VST service: 1. Wrap fuel hose connector in a cloth then disconnect hose slowly to release pressure. 2. Remove band from fuel nipple. 3. Open drain cap to drain the fuel from VST.
AVERTISSEMENT Le rservoir du sparateur de vapeur (VST) contient du carburant sous pression. Pour rduire le risque de pulvrisation du carburant pendant lentretien du VST: 1. Envelopper le connecteur de durite dalimentation dans un chiffon, puis dtacher lentement la durite pour librer la pression. 2. Enlever la sangle du raccord de carburant. 3. Ouvrir le capuchon de vidange pour vidanger le carburant du VST. 6GR-2415H-00
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General information
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EMU33851
Other labels
EMU35133
Symbols The following symbols mean as follows.
Notice/Warning
Read Owners Manual
Hazard caused by continuous rotation
Electrical hazard
EMU48000
Engine data recording This models ECM stores certain engine data to assist in the diagnosis of malfunctions and for research, statistical analysis and develop- ment 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 spe- cial 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
4
ZMU05711
ZMU05696
ZMU05664
ZMU05665
ZMU05666
https://www.yamaha-motor.eu/eu/ privacy/privacy-policy.aspx
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General information
10
Yamaha will not disclose this data to a third party except in the following cases. In addi- tion, Yamaha may provide engine data to a contractor in order to outsource services re- lated to the handling of the engine data. Even in this case, Yamaha will require the contrac- tor to properly handle the engine data we provided and Yamaha will appropriately manage the data. With the consent of the boat owner Where obligated by law For use by Yamaha in litigation For general Yamaha-conducted research
purposes when the data is not related to an individual engine or owner
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Specifications and requirements
11
EMU40501
Specifications TIP: (SUS) indicates that the specification is for the outboard motor when it is equipped with a stainless steel propeller. EMU47891
Dimension and weight: Overall length:
1217 mm (47.9 in) Overall width:
652 mm (25.7 in) Overall height X:
2059 mm (81.1 in) Overall height U:
2186 mm (86.1 in) Motor transom height X:
640 mm (25.2 in) Motor transom height U:
767 mm (30.2 in) Dry weight (SUS) X:
442 kg (974 lb) Dry weight (SUS) U:
453 kg (999 lb) Performance:
Full throttle operating range: 50006000 r/min
Rated power: 316.9 kW (425 HP)
Idle speed (in neutral): 650750 r/min
Power unit: Type:
4-stroke DOHC V8 32 valves Total displacement:
5559 cm (339.2 c.i.) Bore stroke:
96.0 96.0 mm (3.78 3.78 in) Ignition system:
TCI
Spark plug (NGK): ILMAR7E-9
Spark plug gap: 0.80.9 mm (0.0310.035 in)
Steering system: Remote steering
Starting system: Electric starter
Starting carburetion system: Fuel injection
Valve clearance IN (cold engine): 0.170.24 mm (0.00670.0094 in)
Valve clearance EX (cold engine): 0.370.44 mm (0.01460.0173 in)
Battery rating (CCA/SAE): 700 A
Battery rating (MCA/ABYC): 900 A
Battery rating (RC/SAE): 170 minutes
Battery rating (CCA/EN): 670 A
Battery rating (20HR/IEC): 110 Ah
Maximum generator output: 90 A
Lower unit: Gear shift positions:
Forward-neutral-reverse Gear ratio:
1.79 (25/14) Trim and tilt system:
Power trim and tilt Propeller mark:
Y (F425SA) YL (LF425SA)
Fuel and oil: Recommended fuel:
Premium unleaded gasoline Min. pump octane number (PON):
89
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Specifications and requirements
12
Min. research octane number (RON): 94
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):
7.5 L (7.93 US qt, 6.60 Imp.qt) Engine oil quantity (with oil filter replacement):
7.8 L (8.24 US qt, 6.86 Imp.qt) Lubrication system:
Wet sump Recommended gear oil:
YAMALUBE outboard gear oil or Hypoid gear oil
Recommended gear oil grade: SAE 80W API GL-5 / SAE 90 API GL-5
Gear oil quantity: 1.830 L (1.934 US qt, 1.610 Imp.qt) (LF425SA) 1.950 L (2.061 US qt, 1.716 Imp.qt) (F425SA)
Noise and vibration level: Operator sound pressure level (ICOMIA 39/94):
90.9 dB(A) EMU33556
Installation requirements EMU33566
Boat horsepower rating
WARNING EWM01561
Overpowering a boat can cause severe in- stability.
Before installing the outboard motor(s), con- firm that the total horsepower of your out- board motor(s) does not exceed the boats maximum horsepower rating. See the boats capacity plate or contact the manufacturer. EMU40491
Mounting outboard motor
WARNING 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 39. EMU34954
Digital electronic control re- quirements
The digital electronic control is equipped with a start-in-gear protection device(s). This de- vice prevents the engine from starting unless it is in neutral.
WARNING EWM01581
If the engine starts in gear, the boat can move suddenly and unexpectedly, pos- sibly 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 dis- continue using the outboard. Contact your Yamaha dealer.
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Specifications and requirements
13
This digital electronic control unit is only available for the outboard motor which you have purchased. Prior to use of the digital electronic control unit, set it in order to operate your outboard motor only. Otherwise, it will not be possible to operate the outboard motor. Perform setting of the outboard motor and the digital electronic control unit in the follow- ing cases. If a used outboard motor is installed If the digital electronic control unit is re-
placed If the ECM (Electronic control module) of
the used outboard motor is replaced If the ECM (Electronic control module) of
the digital electronic control unit is re- placed
Consult your Yamaha dealer for setting. EMU25695
Battery requirements EMU25723
Battery specifications
The engine cannot be started if battery volt- age 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 bat- tery cable size and length. EMU36303
Multiple batteries To connect multiple batteries, such as for multiple engine configurations or for an ac- cessory battery, consult your Yamaha dealer about battery selection and correct wiring. Battery isolator Your outboard motor is capable of charging an accessory battery separate from the start- ing battery using an optional isolator lead. Contact your Yamaha dealer for installation of an optional isolator lead with over-current protection. EMU41604
Propeller selection Next to selecting an outboard motor, select- ing the right propeller is one of the most im- portant purchasing decisions a boater can make. The type, size, and design of your pro- peller have a direct impact on acceleration, top speed, fuel economy, and even engine life. Yamaha designs and manufactures pro- pellers 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
Battery rating (CCA/EN): 670 A
Battery rating (20HR/IEC): 110 Ah
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Specifications and requirements
14
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 suit- able for the Shift Dampener System (SDS). For further information, consult your Yamaha dealer. To check the propeller, see page 77. Propeller example
EMU36313
Counter rotation models Standard outboard motors rotate clockwise. Counter rotation models rotate counterclock- wise and are typically used in multiple motor setups. On counter rotation models, be sure to use a propeller intended for counterclockwise rota- tion. These propellers are identified with the letter L after the size indication on the pro- peller. WARNING! Never use a standard propeller with a counter rotation motor, or a counter rotation propeller with a stan- dard 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 in- stallation, see page 78.
EMU35141
Start-in-gear protection Yamaha outboard motors or Yamaha-ap- proved digital electronic control units are equipped with start-in-gear protection de- vice(s). This feature permits the engine to be started only when it is in neutral. Always se- lect 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.
If oil grades listed under Recommended en- gine oil grade 1 are not available, select an al- ternative oil grade listed under Recommended engine oil grade 2. Recommended engine oil grade 1
1. Propeller diameter in inches 2. Propeller pitch in inches 3. Type of propeller (propeller mark)
ZMU07044
3 1
2
Recommended engine oil: YAMALUBE 4M FC-W 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):
7.5 L (7.93 US qt, 6.60 Imp.qt) Engine oil quantity (with oil filter re- placement):
7.8 L (8.24 US qt, 6.86 Imp.qt)
ZMU08143
122F
50C
104
40
86
30
68
SAE API
SG SH SJ SL
20
50
10
32
0
14
-10
-4
-20
10W30
10W40
5W30
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Specifications and requirements
15
Recommended engine oil grade 2
EMU36361
Fuel requirements EMU44461
Gasoline Use a good quality gasoline that meets the minimum octane rating.
NOTICE ECM01982
Do not use leaded gasoline. Leaded gasoline can seriously damage the en- gine.
Avoid getting water and contaminants in the fuel tank. Contaminated fuel can cause poor performance or engine dam- age. Use only fresh gasoline that has been stored in clean containers.
Gasohol There are two types of gasohol: gasohol con- taining ethanol (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 en-
gine 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 water- separating marine fuel filter assembly (10 mi- cron minimum) between your boats fuel tank and outboard motor when using ethanol. Eth- anol 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 addition- al fuel system maintenance. EMU36331
Anti-fouling paint A clean hull improves boat performance. The boat bottom should be kept as clean of ma- rine growth as possible. If necessary, the boat bottom can be coated with an anti-foul- ing paint approved for your area to inhibit ma- rine 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.
Recommended fuel: Premium unleaded gasoline
Min. research octane number (RON): 94
ZMU06855
122F
50C
104
40
86
30
68
SAE API
SH SJ SL
20
50
10
32
0
14
-10
-4
-20
15W40
20W40
20W50
U6GR70E0.book Page 15 Monday, June 11, 2018 11:44 AM
Specifications and requirements
16
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 ma- rine SI engines. See the label affixed to your engine for details. EMU25254
Approval label of emission control certifi- cate This label is attached at the location shown. New Technology; (4-stroke) DFI
EMU25275
Star labels Your outboard motor is labeled with a Califor- nia Air Resources Board (CARB) star label. See below for a description of your particular label.
EMU40331
One StarLow Emission The one-star label identifies engines that meet the Air Resources Boards Personal Watercraft and Outboard marine engine 2001 exhaust emission standards. Engines meet- ing these standards have 75% lower emis- sions than conventional carbureted two- stroke engines. These engines are equivalent to the U.S. EPAs 2006 standards for marine engines.
1. Approval label location
1 1. Star label location
EMISSION CONTROL INFORMATION THIS ENGINE CONFORMS TO CALIFORNIA EXHAUST AND U.S. EPA EXHAUST AND EVAP REGULATIONS FOR SI MARINE ENGINES. REFER TO OWNERS MANUAL FOR MAINTENANCE SPECIFICATIONS AND ADJUSTMENTS. FAMILY : DISPLACEMENT : liters MAX POWER : kW FEL : HC+NOx ,CO g/kW-h EPA CERTIFIED EVAP COMPONENTS :
YAMAHA MOTOR CO.,LTD.
ZMU06894
1
U6GR70E0.book Page 16 Monday, June 11, 2018 11:44 AM
Specifications and requirements
17
EMU40341
Two StarsVery Low Emission The two-star label identifies engines that meet the Air Resources Boards Personal Watercraft and Outboard marine engine 2004 exhaust emission standards. Engines meet- ing these standards have 20% lower emis- sions than One Star-Low-Emission engines.
EMU40351
Three StarsUltra Low Emission The three-star label identifies engines that meet the Air Resources Boards Personal Watercraft and Outboard marine engine 2008 exhaust emission standards or the Sterndrive and Inboard marine engine 2003-2008 ex- haust emission standards. Engines meeting these standards have 65% lower emissions than One Star-Low-Emission engines.
EMU33862
Four StarsSuper Ultra Low Emission The four-star label identifies engines that meet the Air Resources Boards 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.
ZMU01702
ZMU01703
ZMU01704
ZMU05663
U6GR70E0.book Page 17 Monday, June 11, 2018 11:44 AM
Components
18
EMU46722
Components diagram TIP: * May not be exactly as shown; also may not be included as standard equipment on all models (order from dealer).
1 2
1
3
4
5 5
6
1
7
8
9
1. Cowling lock lever 2. Top cowling 3. Power trim and tilt unit 4. Anode 5. Cooling water inlet 6. Anti-cavitation plate 7. Clamp bracket 8. Idle hole
9. Propeller*
U6GR70E0.book Page 18 Monday, June 11, 2018 11:44 AM
Components
19
4
6
5
2
1
3
1. Fuse box 2. Fuel filter 3. Power trim and tilt switch 4. Oil filler cap 5. Flushing device 6. Oil dipstick
U6GR70E0.book Page 19 Monday, June 11, 2018 11:44 AM
Components
20
EMU46731
Optional items The following items are available from your Yamaha dealer. For details, consult your Yamaha dealer.
21
1. CL7 Display 2. Yamaha Security System (Y-COP)
U6GR70E0.book Page 20 Monday, June 11, 2018 11:44 AM
Components
21
For single-engine boats
1