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Yamaha F90 Owner's Manual
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Yamaha F90 Owner's Manual

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F90
OWNER'S MANUAL
Read this manual carefully before operating this
LIT-18626-11-52
outboard motor.
6FP-28199-30-E0

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Summary of Contents for Yamaha F90

  • Page 1 OWNER’S MANUAL Read this manual carefully before operating this LIT-18626-11-52 outboard motor. 6FP-28199-30-E0...
  • Page 2 Les gaz d’échappement du moteur de ce produit contiennent des substances chimiques connues dans l’État de Californie pour provoquer le cancer, des anomalies congénitales et des troubles de la reproduction. ZMU07696 Read this manual carefully before operating this outboard motor. Keep this manual onboard in a waterproof bag when boating.
  • Page 3 EWM00782 If you purchased this outboard motor used, WARNING see your Yamaha dealer to have it registered A WARNING indicates a hazardous situa- in your name in Yamaha records. tion which, if not avoided, could result in TIP: death or serious injury.

  • Page 4: Table Of Contents

    Optional items ........26 Outboard motor serial number... 9 Fuel tank (portable fuel tank) ... 26 Key number ........9 Yamaha Security System (Y-COP) ... 27 Remote control box......27 Remote control lever ......28 Neutral interlock trigger....28 Neutral throttle lever......29 Free accelerator .......
  • Page 5 Table of contents Gear shift lever ........ 30 Low oil pressure alert ....... 45 Throttle grip ........30 Water separator alert......46 Throttle indicator ......30 Throttle friction adjuster ....30 Installation ........48 Engine shut-off cord (lanyard) and Installation........48 clip ..........
  • Page 6 Lubrication ........74 IMPORTANT WARRANTY Cleaning and anticorrosion INFORMATION IF YOU USE measures ........74 YOUR YAMAHA OUTSIDE THE Flushing cooling water passage..75 U.S.A. OR CANADA....101 Cleaning the outboard motor ... 75 Checking painted surface of INDEX ..........102 outboard motor......

  • Page 7: Safety Information

    Safety information EMU33623 EMU33661 Outboard motor safety Power trim and tilt Body parts can be crushed between the mo- Observe these precautions at all times. tor and the clamp bracket when the motor is EMU36502 Propeller trimmed or tilted. Keep body parts out of this People can be injured or killed if they come in area at all times.

  • Page 8: Gasoline

    Gasoline and its vapors are highly flamma- Have an approved PFD on board for every ble and explosive. Always, refuel according occupant. Yamaha recommends that you to the procedure on page 57 to reduce the must wear a PFD whenever boating. At a mi- risk of fire and explosion.

  • Page 9: Avoid Collisions

    Safety information tions. Overloading or incorrect weight EMU33791 Weather distribution can compromise the boats han- Stay informed about the weather. Check dling and lead to an accident, capsizing or weather forecasts before boating. Avoid swamping. boating in hazardous weather. EMU33773 Avoid collisions EMU44161 Accident reporting...

  • Page 10: Passenger Training

    Safety information successful completion of the course, the user EMU44740 Boating organizations can download a certificate of completion im- The following organizations provide boating mediately or, for a small charge, request one safety training and information about boating by mail. To take this free course, go to boa- safety and laws.

  • Page 11: Basic Boating Rules (Rules Of The Road)

    Safety information In Canada Stand-on vessel National Marine Manufacturers Associa- The vessel with the right-of-way has the duty tion Canada to continue its course and speed, except to 14 McEwan Drive avoid an immediate collision. When you Suite 8 maintain your direction and speed, the other Bolton, ON vessel will be able to determine how best to L7E 1H1...

  • Page 12: Other Special Situations

    Safety information Crossing: (you are traveling across the other Crossing When two power driven vessels are crossing vessel’s path) each other’s path close enough to run the risk Overtaking: (you are passing or being of collision, the vessel which has the other on passed by another vessel) the starboard (right) side must keep out of the In the following illustration, your boat is in the...
  • Page 13 Safety information ter vessels, the operator should sound a pro- red buoys are passed on the starboard (right) longed blast on the whistle (4 to 6 seconds). side when proceeding from open water into If another vessel is around the bend, it too port, and black buoys are to port (left) side.
  • Page 14 Safety information ZMU01708...

  • Page 15: General Information

    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.

  • Page 16: Compliance Mark And Manufactured Date Label

    General information Outboard motors affixed with this “CE” mark- conform with directives 2006/42/EC, 94/25/EC 2003/44/EC, 2014/30/EU, and 2004/108/EC, 2013/53/EU. ZMU08071 1. Compliance mark and manufactured date label location Regulatory Compliance Mark (RCM) Engines affixed with this mark conform to ZMU08137 certain portion(s) of the Australian Radio 1.
  • Page 17 General information Manufactured date The manufactured date is stamped on the la- bel for the engines that conform to the regu- lations for U.S. Environmental Protection Agency (EPA). The models that manufac- tured exclusively for the Oceanian countries may not have manufactured date on the la- bel.

  • Page 18: Read Manuals And Labels

    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. ZMU08685...
  • Page 19 General information 6EE-H1994-40 6EE-G2794-40 6EE-H1994-50 6EE-G2794-50 ZMU06191 Attach engine shut-off cord (lanyard) to EMU34652 Contents of labels your PFD, arm, or leg so the engine The above warning labels mean as follows. stops if you accidentally leave the helm, which could prevent a runaway boat. EWM01682 WARNING EMU33851...
  • Page 20 General information EMU35133 Electrical hazard Symbols The following symbols mean as follows. Notice/Warning ZMU05666 ZMU05696 Read Owner’s Manual ZMU05664 Hazard caused by continuous rotation ZMU05665...

  • Page 21: Specifications And Requirements

    Specifications and requirements EMU38092 Spark plug (NGK): Specifications LKR6E-9N TIP: Spark plug gap: “(AL)” stated in the specification data below 0.8–0.9 mm (0.031–0.035 in) represents the numerical value for the alumi- Steering system: num propeller installed. Remote steering EMU2821V Starting system: Electric starter Dimension and weight: Starting carburetion system:...

  • Page 22: Installation Requirements

    18 N·m (1.84 kgf·m, 13.3 lb·ft) 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.

  • Page 23: Battery Requirements

    Yamaha outboard motor and 430–1080 A every application. Battery rating (20HR/IEC): Your Yamaha dealer can help you select the 70 Ah right propeller for your boating needs. Select ECM01063 a propeller that will allow the engine to reach...

  • Page 24: Start-In-Gear Protection

    Select an oil grade according to the average range when carrying lighter loads. temperatures in the area where the outboard Yamaha recommends to use a propeller suit- motor will be used. able for the “Shift Dampener System (SDS)”. For further information, consult your Yamaha Recommended engine oil: dealer.

  • Page 25: Fuel Requirements

    However, if gasoline with Ethanol is the Top Tier Detergent Gasoline. (North America only fuel available in your area, your Yamaha only) NOTICE: Failure to comply with these outboard motor is calibrated to run properly...

  • Page 26: Gasoline Additives

    Yamaha recommends the use of two Yama- fuel tank. This ethanol and water mixture is lube gasoline additives to reduce internal de- very corrosive to aluminum fuel tanks and posits and extend the storage life of gasoline.

  • Page 27: Muddy Or Acidic Water

    Anti-fouling paints specifically formulated for sion protection due to your local water use on aluminum may be applied to the out- conditions. Please consult your Yamaha board motor. The original Yamaha paint sur- dealer. face may be scuffed lightly before applying ECM02421...

  • Page 28: Emission Control Information

    Your outboard motor is labeled with a Califor- Spare parts, such as an extra set of spark nia Air Resources Board (CARB) star label. plugs. See below for a description of your particular Consult your Yamaha dealer for details. label. EMU25223 Emission control information EMU25232 This engine conforms to U.S.
  • Page 29 Specifications and requirements EMU40341 emission standards. Personal Watercraft and Two Stars—Very Low Emission Outboard marine engines may also comply The two-star label identifies engines that with these standards. Engines meeting these meet the Air Resources Board’s Personal standards have 90% lower emissions than Watercraft and Outboard marine engine 2004 One Star-Low-Emission engines.

  • Page 30: Components

    Components EMU46721 Components diagram TIP: * May not be exactly as shown; also may not be included as standard equipment on all models (order from dealer). ZMU08688 1. Fuse box 2. Fuel filter 3. Cowling lock lever 4. Power trim and tilt unit 5.
  • Page 31 Components ZMU08689 1. Oil filler cap 2. Cowling lock lever 3. Cooling water pilot hole 4. Drain screw 5. Gear oil drain screw 6. Cooling water inlet 7. Oil level plug 8. Oil dipstick...

  • Page 32: Optional Items

    Components EMU46731 Optional items The following items are available from your Yamaha dealer. For details, consult your Yamaha dealer. YAMAHA SPEED Km/h knot mile TRIP TIME BATT MODE MODE mode ZMU08805 EMU43103 1. Remote control box (side mount type) Fuel tank (portable fuel tank) 2.

  • Page 33: Yamaha Security System (Y-Cop)

    EMU46750 Yamaha Security System (Y-COP) ECM02461 NOTICE The Yamaha Security System is sold in conformity with the relevant laws and reg- ulations regarding radio wave transmis- sion. Therefore, if this product is used outside the country where it was sold, it...

  • Page 34: Remote Control Lever

    Components ZMU01723 ZMU01725 1. Neutral “ ” 1. Power trim and tilt switch 2. Forward “ ” 2. Remote control lever 3. Reverse “ ” 3. Neutral interlock trigger 4. Shift 4. Neutral throttle lever 5. Fully closed 5. Main switch 6.

  • Page 35: Neutral Throttle Lever

    Components ZMU01727 ZMU04576 1. Neutral interlock trigger 1. Fully open 2. Fully closed EMU26213 Neutral throttle lever 3. Free accelerator To open the throttle without shifting into ei- TIP: ther forward or reverse, put the remote con- The free accelerator button can only be trol lever in the neutral position and lift the pushed when the remote control lever is in neutral throttle lever.

  • Page 36: Gear Shift Lever

    Components EMU25925 Gear shift lever Move the gear shift lever forward to engage the forward gear or rearward to engage the reverse gear. 1. Throttle indicator EMU25978 Throttle friction adjuster A friction device provides adjustable resis- tance to movement of the throttle grip or the 1.

  • Page 37: Engine Shut-Off Cord (Lanyard) And Clip

    Components Also, without engine power, the boat could slow rapidly. This could cause peo- ple and objects in the boat to be thrown forward. [EWM00123] ZMU04563 ZMU01716 1. Engine shut-off cord (lanyard) 2. Clip 3. Engine shut-off switch When constant speed is desired, tighten the adjuster to maintain the desired throttle set- ting.

  • Page 38: Engine Stop Button

    Components With the main switch in the “ ” (start) po- sition, the starter motor turns to start the en- gine. When the key is released, it returns automatically to the “ ” (on) position. START 1. Engine shut-off cord (lanyard) 2.

  • Page 39: Power Trim And Tilt Switch On Remote Control Or Tiller Handle

    Components To increase resistance, turn the lever to the port side “A”. To decrease resistance, turn the lever to the starboard side “B”. EWM00041 WARNING Do not overtighten the friction adjuster. If there is too much resistance, it could be difficult to steer, which could result in an ZMU01720 accident.

  • Page 40: Variable Trolling Rpm Switches

    Components falling overboard and could distract the For instructions on using the variable troll- operator, increasing the risk of collision ing RPM switches, see page 64. with another boat or an obstacle. EMU26246 Trim tab with anode EWM00841 WARNING An improperly adjusted trim tab could cause difficult steering.

  • Page 41: Tilt Support Lever For Power Trim And Tilt Model

    Components EMU40762 Cowling lock lever The cowling lock levers are used to secure the top cowling. ZMU08077 Bolt tightening torque: 42 N·m (4.28 kgf·m, 31.0 lb·ft) ZMU08079 EMU26342 1. Cowling lock lever 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.

  • Page 42: Fuel Filter

    TIP: Adding an in-line 10-micron fuel filter has been shown to greatly reduce the chance of fuel contamination problems. Consult your dealer for information about Yamaha 10-mi- cron fuel filters if your boat does not have one. EMU26305 Alert indicator If the engine develops a condition which is cause for alert, the indicator lights up.

  • Page 43: Instruments And Indicators

    Instruments and indicators EMU36016 Indicators EMU36026 Low oil pressure-alert indicator If oil pressure drops too low, this indicator will light up. For further information, see page 45. ECM00024 NOTICE Do not continue to run the engine if the low oil pressure-alert indicator is on and the engine oil level is lower.

  • Page 44: Trim Meter

    Instruments and indicators EMU26622 To reset the trip hours, simultaneously press Trim meter the “ ” (set) and “ ” (mode) buttons for This meter shows the trim angle of your out- more than 1 second while the trip hours are board motor.

  • Page 45: Digital Speedometer

    3. Selector switch (for fuel sensor) This gauge shows the boat speed and other information. EMU26714 Fuel gauge Eight segments indicate the fuel level. When all segments are showing, the fuel tank is full. YAMAHA SPEED km/h knot mile TRIP TIME...

  • Page 46: Trip Meter / Clock / Voltmeter

    Instruments and indicators your Yamaha dealer on how to correctly set Press the “ ” (set) button again, the mi- the selector switch. NOTICE: Running out of nute display will begin blinking. fuel can damage the engine. Press the “...

  • Page 47: Low Battery Voltage-Alert Indicator

    Low battery voltage-alert indicator If battery voltage drops, the display will auto- matically turn on and blink. Get back to the port soon if an alert device has activated. For charging the battery, con- sult your Yamaha dealer. YAMAHA SPEED km/h ZMU08408 knot 1.
  • Page 48 Instruments and indicators 7. Cooling water pressure indicator (optional) Yamaha Security System indicator (op- tional) This indicator appears, when the Yamaha Se- curity System is in lock mode. Lock mode ZMU08410 1. Speedometer 2. Fuel meter 3. Multifunction display TIP:...
  • Page 49 Get back to the port soon if the low battery NOTICE voltage alert device has activated. For charg- Gasoline mixed with water could cause ing the battery, consult your Yamaha dealer. damage to the engine. Overheat-alert indicator If the engine temperature rises too high while...
  • Page 50 Check the engine oil level and re- plenish oil if necessary. If the alert device has activated while the appropriate engine oil lev- el is maintained, consult your Yamaha dealer. ECM01602 NOTICE Do not continue to run the engine if the low oil pressure alert device has activated.

  • Page 51: Engine Control System

    Alert system ECM00093 NOTICE 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. EMU43753 ZMU04583 Overheat alert This engine has an overheat-alert device. If the engine temperature rises too high, the alert device will activate.

  • Page 52: Water Separator Alert

    If the oil level is correct and the alert device does not The buzzer will sound. switch off, consult your Yamaha dealer. EMU43953 Water separator alert The outboard motor is equipped with a water separator alert system.
  • Page 53 ZMU01758 ZMU04583 If the alert system has activated, stop the en- gine and check the fuel filter. If any water is found in the fuel, consult a Yamaha dealer. ECM02341 NOTICE Although the buzzer will stop when the en- gine is started and the remote control le- ver is moved to the forward or reverse position, do not use the outboard motor.

  • Page 54: Installation

    Consult your or fire hazards. For permanently mount- Yamaha dealer or boat manufacturer for fur- ed models, your dealer or other person ther information on determining the proper experienced in proper rigging should mounting height.
  • Page 55 Installation 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.

  • Page 56: Operation

    Operation EMU36382 EMU27086 First-time operation Procedure for 4-stroke models Your new engine requires a period of 10 EMU36393 Fill engine oil hours break-in to allow mating surfaces of The engine is shipped from the factory with- moving parts to wear in evenly. out engine oil.

  • Page 57: Fuel Level

    Operation ECM00121 NOTICE Do not start the engine out of water. Over- heating and serious engine damage can occur. 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 ZMU08085 as an emergency reserve.

  • Page 58: Controls

    If any water is found in the fuel, or if a damage, such as cuts, breaks, and wear. significant amount of debris is found, the fuel tank should be checked and cleaned by a Yamaha dealer. ZMU06873 1. Clip 2. Engine shut-off cord (lanyard)

  • Page 59: Outboard Motor

    Operation Check that the oil level on the oil dipstick is between the upper and lower marks. Consult your Yamaha dealer if the oil lev- el is not at the proper level or if it appears milky or dirty. ZMU08089 1.

  • Page 60: Power Trim And Tilt System

    EMU36585 Battery Check the battery’s charge. If your boat is ZMU07760 equipped with a Yamaha digital speedome- ter, the voltmeter and low battery alert func- tions will help you monitor the battery’s...

  • Page 61: Filling Fuel

    If the battery needs charging, consult your Yamaha dealer or the battery manufacturer’s instructions. EMU43164 Filling fuel EWM01831...
  • Page 62 Operation ZMU07445 ZMU07447 1. Air vent screw 1. Pressure relief tab 2. Fuel tank cap While pressing and holding the pressure Fill the fuel tank with fuel. WARNING! Do relief tab under the fuel tank cap, slowly not overfill. Otherwise fuel can expand turn the fuel tank cap counterclockwise and overflow if the temperature in- 1/4 turn.

  • Page 63: Operating Engine

    Operation This product emits exhaust gases which contain carbon monoxide, a colorless, odorless gas which could cause brain damage or death when inhaled. Symp- toms include nausea, dizziness, and drowsiness. Keep cockpit and cabin ar- eas well ventilated. Avoid blocking ex- haust outlets.

  • Page 64: Starting Engine

    Operation EMU27597 TIP: Electric start / prime start models Dispose of rags properly according to local EWM01842 WARNING laws or regulations. Squeeze the primer pump, with the ar- Failure to attach the engine shut-off row pointing up, until you feel it become cord could result in a runaway boat if firm.
  • Page 65 Operation 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.
  • Page 66 Operation ZMU01771 ZMU04595 Turn the main switch to “ ” (on). Turn the main switch to “ ” (start), and hold it for a maximum of 5 seconds. START ZMU04588 TIP: The start-in-gear protection device prevents ZMU01774 the engine from starting except when in neu- tral.

  • Page 67: Checks After Starting Engine

    Checks after engine warm up or the cooling water pilot hole is blocked. EMU36542 Shifting Consult your Yamaha dealer if the prob- While the boat is tightly moored, and without lem cannot be located and corrected. applying throttle, confirm that the engine shifts smoothly into forward and reverse, and back to neutral.

  • Page 68: Stop Switches

    Operation EMU36981 Move the remote control lever / gear shift Stop switches lever firmly and crisply forward (for for- Turn the main switch to “ ”, or press the ward gear) or backward (for reverse gear) engine stop button and make sure the en- [about 35°...

  • Page 69: Stopping Boat

    Operation To shift from in gear (forward/reverse) to neu- tral Close the throttle so that the engine slows to idle speed. ZMU01771 ZMU05462 ZMU04588 EMU31743 Stopping boat EWM01511 WARNING Do not use the reverse function to slow After the engine is at idle speed in gear down or stop the boat as it could cause move the remote control lever / gear shift you to lose control, be ejected, or im-...

  • Page 70: Trolling

    Operation Do not shift into reverse while traveling If the trolling speed has been adjusted, the at planing speeds. Loss of control, boat engine returns to the normal trolling speed swamping, or damage to the boat could when the engine is stopped and restarted occur.

  • Page 71: Trimming Outboard Motor

    Operation ZMU07444 1. Air vent screw Remove the key if the boat will be left un- attended. TIP: The engine can also be stopped by pulling the cord and removing the clip from the en- gine shut-off switch, then turning the main switch to “...

  • Page 72: Adjusting Trim Angle (Power Trim And Tilt)

    Operation ZMU01781 1. Power trim and tilt switch 1. Trim operating angle EMU27889 Adjusting trim angle (Power trim and tilt) EWM00754 WARNING Be sure all people are clear of the out- board motor when adjusting the trim an- gle. Body parts can be crushed between the motor and the clamp bracket when the motor is trimmed or tilted.

  • Page 73: Tilting Up And Down

    Operation Bow Up TIP: Too much trim-out puts the bow of the boat Depending on the type of boat, the outboard too high in the water. Performance and econ- motor trim angle may have little effect on the omy are decreased because the hull of the trim of the boat when operating.

  • Page 74: Procedure For Tilting Up (Power Trim And Tilt Models)

    Operation ECM00242 NOTICE Before tilting the outboard motor, stop the engine by following the procedure on page 64. Never tilt the outboard mo- tor while the engine is running. Severe damage from overheating can result. Do not tilt up the engine by pushing the tiller handle (if equipped) because this could break the handle.

  • Page 75: Procedure For Tilting Down

    Operation EMU42702 Procedure for tilting down 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. Release the tilt support lever. ZMU08693 1.

  • Page 76: Shallow Water

    Operation ZMU08144 1. Power trim and tilt switch 1. Cooling water inlet EMU32914 Procedure for power trim and tilt models Place the remote control lever / gear shift lever in neutral. ZMU08694 1. Power trim and tilt switch EMU28063 ZMU01771 Shallow water EMU40702 Cruising in shallow water...

  • Page 77: Cruising In Other Conditions

    Cruising in muddy, turbid, or acidic water Yamaha strongly recommends that you use the optional chromium-plated water pump kit (see page 21) 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.

  • Page 78: Maintenance

    It is advisable to have your outboard motor falls. serviced by an authorized Yamaha dealer pri- Do not use the tilt support lever or knob or to storage. However, you, the owner, with when trailering the boat. The outboard...

  • Page 79: Conditioning And Stabilizing Gasoline

    Do not fill the fuel tank(s) to the point of over- ditioner Plus” eliminates the need to drain the flowing. Approximately 7/8 full will allow fuel system. Consult your Yamaha dealer or enough space in the fuel tank to prevent gas- other qualified mechanic if the fuel system is oline purging from the fuel tank vent due to to be drained instead.

  • Page 80: Lubrication

    Keep hands, hair, Seal replacement should be performed and clothes away from the flywheel by an authorized Yamaha dealer prior to and other rotating parts while the en- use. gine is running.

  • Page 81: Flushing Cooling Water Passage

    Also, do not spray near the si- lencer or into the engine. Otherwise the engine could be damaged. [ECM01403] Wax the cowling with a non-abrasive wax such as “Yamaha Silicone Wax”. EMU40964 Flushing cooling water passage ZMU08102 Perform this procedure right after operation 1.

  • Page 82: Checking Painted Surface Of Outboard Motor

    Yamaha dealer. For North America: EMU44950 A service manual is available for purchase Periodic maintenance through your Yamaha dealer for owners who EWM01872 WARNING have the mechanical skills, tools, and other equipment necessary to perform mainte- These procedures require mechanical nance not covered by this owner’s manual.

  • Page 83: Maintenance Chart 1

    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...
  • Page 84 Maintenance Initial Every 20 hours Item Actions Page 100 hours 300 hours 500 hours (1 year) (3 years) (5 years) months) Engine starting Inspection condition/noise Engine idle Inspection speed/noise Engine oil Replacement Engine oil filter Replacement — (cartridge) Inspection or re- Fuel filter (can be placement as nec- disassembled)
  • Page 85 — pler connections essary (Yamaha) Me- Inspection — ter/gauge Inspection and Fuel tank (Yamaha cleaning as neces- — portable tank) sary EMU47020 *1 cylinder head, cylinder block *2 cylinder head, cylinder block, fuel cooler, exhaust guide...

  • Page 86: Maintenance Chart 2

    Maintenance EMU46080 Maintenance chart 2 Every Item Actions Page 1000 hours Inspection or re- Exhaust guide/ex- placement as nec- — haust manifold essary Timing belt Replacement —...

  • Page 87: Greasing

    Maintenance EMU41302 Greasing Yamalube Marine Grease ZMU08711...

  • Page 88: Inspecting Spark Plug

    Do not attempt to diagnose any problems yourself. Instead, take the out- ZMU08699 board motor to a Yamaha dealer. You should periodically remove and check the spark plug To check the spark plug because heat and deposits will cause the Check the condition of the spark plug.

  • Page 89: Inspecting Idle Speed

    15. If you have difficulty verifying Install the spark plug, and then tighten it the idle speed, or the idle speed requires to the specified torque. adjustment, consult a Yamaha dealer or other qualified mechanic. Spark plug tightening torque: EMU38807 25 N·m (2.55 kgf·m, 18.4 lb·ft)
  • Page 90 Maintenance TIP: When using an oil changer, skip steps 6 and Prepare a suitable container that holds a larger amount than the engine oil capac- ity. 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.

  • Page 91: Inspecting Wiring And Connectors

    3.2 L (3.38 US qt, 2.82 Imp.qt) For more information on the disposal of Leave the outboard motor for 5-10 minu- used oil, consult your Yamaha dealer. tes. Change the oil more often when operating 10. Remove the oil dipstick and wipe it the engine under adverse conditions such clean.

  • Page 92: Checking Propeller

    Maintenance ZMU07854 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.

  • Page 93: Installing Propeller

    [ECM01892] the propeller could come off during oper- ation and be lost. Apply Yamaha marine grease or a corro- sion resistant grease to the propeller shaft. Install the spacer (if equipped), thrust washer, washer (if equipped), and pro- peller on the propeller shaft.

  • Page 94: Changing Gear Oil

    TIP: can indicate lower unit problem. Con- For disposal of used oil, consult your Yamaha sult your Yamaha dealer. [ECM01901] dealer. Put the outboard motor in a vertical posi- tion.

  • Page 95: Inspecting And Replacing Anode(S)

    Inspect ground leads attached to external an- lation. odes on equipped models. Consult a Tightening torque: Yamaha dealer for inspection and replace- 7 N·m (0.71 kgf·m, 5.2 lb·ft) ment of internal anodes attached to the pow- er unit. EMU29318...

  • Page 96: Connecting The Battery

    If the battery needs charg- ZMU01811 ing, consult your Yamaha dealer. 1. Red cable Check the battery connections. They 2. Black cable 3. Battery should be clean, secure, and covered by an insulating cover.

  • Page 97: Disconnecting The Battery

    Maintenance EMU29372 Disconnecting the battery Turn off the battery cut-off switch (if equipped) and main switch. NOTICE: If they are left on, the electrical system can be damaged. [ECM01931] Disconnect the negative cable(s) from the negative (-) terminal. NOTICE: Al- ways disconnect all negative (-) cables first to avoid a short circuit and dam- age to the electrical system.

  • Page 98: Trouble Recovery

    Q. Has fuel pump malfunctioned? If your outboard motor requires repair, bring A. Have serviced by a Yamaha dealer. it to your Yamaha dealer. If the engine trouble-alert indicator is flashing, Q. Are spark plug(s) fouled or of incorrect ty- consult your Yamaha dealer.
  • Page 99 Q. Is fuel contaminated or stale? A. Fill tank with clean, fresh fuel. Q. Is carburetor clogged? A. Have serviced by a Yamaha dealer. Q. Is fuel filter clogged? A. Clean or replace filter. Q. Is fuel joint connection incorrect? A.
  • Page 100 Trouble Recovery A. Have serviced by a Yamaha dealer. Q. Are weeds or other foreign matter tangled on gear housing? Q. Is load on boat improperly distributed? A. Remove foreign matter and clean lower A. Distribute load to place boat on an even unit.

  • Page 101: Temporary Action In Emergency

    Q. Is motor mounting bolt loose? A. Tighten bolt. Have a Yamaha dealer check the out- Q. Is steering pivot loose or damaged? board motor before operating it again. A. Tighten or have serviced by a Yamaha EMU46602 Replacing fuse dealer. EWM00632...

  • Page 102: Power Trim And Tilt Unit Will Not Operate

    Gasoline is highly flammable, and its va- 1. Fuse puller pors are flammable and explosive. Consult your Yamaha dealer if the new fuse Do not perform this procedure on a hot immediately blows again. or running engine. Allow the engine to...
  • Page 103 Trouble Recovery There will be fuel in the fuel filter. Keep away from sparks, cigarettes, flames or other sources of ignition. This procedure will allow some fuel to spill. Catch fuel in a rag. Wipe up any spilled fuel immediately. The fuel filter must be reassembled carefully with the O-ring, filter cup, and hoses in place.

  • Page 104: Treatment Of Submerged Motor

    [ECM01961] Treatment of submerged motor If the outboard motor is submerged, immedi- ately take it to a Yamaha dealer. Otherwise some corrosion may begin almost immedi- ately. NOTICE: Do not attempt to run the outboard motor until it has been com- pletely inspected.

  • Page 105: Consumer Information (For North America)

    Owner’s Manual. The owner of the outboard motor shall give notice to an authorized Yamaha Outboard Motor Dealer of any and all apparent defects within ten (10) days of discovery and make the motor available at that time for inspection and repairs at the dealer’s place of business.
  • Page 106 TRANSFER OF WARRANTY Transfer of the warranty from the original purchaser to any subsequent purchaser is possible by having the motor inspected by an authorized Yamaha Outboard Motor Dealer and requesting the dealer to submit a change of registration to Yamaha within ten (10) days of the transfer.

  • Page 107: Important Warranty Information If You Use Your Yamaha Outside The U.s.a. Or Canada

    He will be able to contact Yamaha on your behalf to see if any refund can be provided.

  • Page 108: Index

    INDEX 6Y8 Multifunction meters...... 41 Cowling lock lever......... 35 Cruising in salt water or other conditions........... 71 Accident reporting ........3 Alcohol and drugs........2 Alert indicator ........36 Digital speedometer......39 Alert system.......... 45 Digital tachometer ........ 37 Anode(s), inspecting and replacing ..89 Anti-fouling paint ........
  • Page 109 INDEX Gasoline Additives........ 20 Outboard motor, checking ....53 Gasoline exposure and spills....2 Outboard motor disposal Gear oil, changing......... 88 requirements ........21 Gear shift lever........30 Outboard motor (painted surface), Greasing ..........81 checking ..........76 Outboard motor safety ......1 Outboard motor serial number ....
  • Page 110 Wiring and connectors, inspecting ..85 Starting engine ........58 Start-in-gear protection ......18 Steering and sailing rules and sound Yamaha Security System (Y-COP) ..27 signals ..........5 Steering friction adjuster ...... 32 Stop switches ........62 Stopping boat........63 Stopping engine ........
  • Page 111 — right out of the box. Yamalube — Take care of your Yamaha with legendary Yamalube oils, lubricants, and care products. They’re formulated and approved by the toughest judges we know: the Yamaha engineering teams that know your Yamaha from the inside out.
  • Page 112 Printed in Japan November 2016–1.8 × 2 CR Printed on recycled paper...

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