Yamaha F75 Owner's Manual
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F75
F90
OWNER'S MANUAL
Read this manual carefully before operating this
LIT-18626-10-20
outboard motor.
6D6-28199-3C-E0

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Table of Contents
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Summary of Contents for Yamaha F75

  • Page 1 OWNER’S MANUAL Read this manual carefully before operating this LIT-18626-10-20 outboard motor. 6D6-28199-3C-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: Important Manual Information

    EWM00781 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

    Table of contents Safety information......1 Remote control requirements..14 Outboard motor safety ....1 Battery requirements..... 15 Propeller ..........1 Specifications of Battery....15 Rotating parts ........1 Mounting battery....... 15 Hot parts..........1 Propeller selection ......15 Electric shock ........1 Start-in-gear protection ....
  • Page 5 Table of contents Tilt support lever for power trim and Operation ......... 46 tilt model........30 First-time operation ....... 46 Cowling lock lever (pull up type)..30 Fill engine oil ........46 Flushing device ........ 31 Breaking in engine......46 Fuel filter/Water separator....
  • Page 6 WARRANTY ......94 Storing outboard motor..... 67 IMPORTANT WARRANTY Procedure......... 68 INFORMATION IF YOU USE Lubrication........69 YOUR YAMAHA OUTSIDE THE Cleaning and anticorrosion U.S.A. OR CANADA ....96 measures ........69 Flushing power unit ......69 Cleaning the outboard motor.... 70 Checking painted surface of outboard motor......
  • Page 7: Safety Information

    Safety information EMU33622 area at all times. Be sure no one is in this area Outboard motor safety before operating the power trim and tilt mech- Observe these precautions at all times. anism. EMU36501 The power trim and tilt switches operate even Propeller when the main switch is off.
  • Page 8: Carbon Monoxide

    Have an approved PFD on board for every oc- tions. Overloading incorrect weight cupant. Yamaha recommends that you must distribution can compromise the boats han- wear a PFD whenever boating. At a minimum, dling and lead to an accident, capsizing or children and non-swimmers should always swamping.
  • Page 9: Weather

    Safety information There is personal injury that requires medical attention beyond first aid. There is property damage to boats or oth- er property over a certain amount. There is complete loss of a boat. Contact local law enforcement personnel if a report is necessary.
  • Page 10: Passenger Training

    Safety information course, with an on-line option. Details can be United States Power Squadrons found on Transport Canada’s website. 1-888-FOR-USPS (1-888-367-8777) www.tc.gc.ca http://www.usps.org/ EMU33880 Passenger training Boat Owners Association of The United Make sure at least one other passenger is States trained to operate the boat in the event of an 1-800-336-BOAT (1-800-336-2628)
  • Page 11: Basic Boating Rules (Rules Of The Road)

    Safety information “ The general prudential rule ” EMU33691 Basic boating rules (Rules of This rule is called Rule 2 in the International the road) Rules and says, Just as there are rules that apply when you “ In obeying and construing these rules due are driving on streets and highways, there are regard shall be had to all dangers of naviga- waterway rules that apply when you are driv-...
  • Page 12: Other Special Situations

    Safety information Meeting Overtaking If you are meeting another power vessel head If you are passing another vessel, you are the on, and are close enough to run the risk of col- “Give-Way” vessel. This means that the other lision, neither of you has the right-of-way Both vessel is expected to maintain its course and of you should alter course to avoid an acci- speed.
  • Page 13 Safety information Fishing vessel right-of-way Many bodies of water used by boaters are en- All vessels that are fishing with nets, lines or tirely within the boundaries of a particular trawls are considered to be “fishing vessels” state. The Uniform State Waterway Marking under the International Rules.
  • 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. 1. Key number ZMU04214 1.
  • Page 16: Read Manuals And Labels

    ● Read all labels on the outboard motor and the boat. ● If you need any additional information, contact your Yamaha dealer. EMU33832 Warning labels If these labels are damaged or missing, contact your Yamaha dealer for replacements. F75, F90...
  • Page 17 General information ZMU05740 EMU33912 Contents of labels EWM01671 The above warning labels mean as follows. WARNING Read Owner’s Manuals and labels. ● EWM01691 Wear an approved personal flotation de- ● WARNING vice (PFD). Emergency starting does not have start- Attach engine shut-off cord (lanyard) to ●...
  • Page 18 General information EMU35132 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 19: Specifications And Requirements

    Specifications and requirements Bore × stroke: EMU34521 Specifications 79.0 × 81.4 mm (3.11 × 3.20 in) TIP: Ignition system: “(AL)” stated in the specification data below represents the numerical value for the alumi- Spark plug (NGK): num propeller installed. LFR5A-11 Likewise, “(SUS)”...
  • Page 20: Installation Requirements

    18 Nm (1.84 kgf-m, 13.3 ft-lb) continue using the outboard. Contact EMU33554 Installation requirements your Yamaha dealer. EMU33564 Boat horsepower rating The remote control unit must be equipped EWM01560 with a start-in-gear protection device(s). This...
  • Page 21: Battery Requirements

    Use a fully charged battery that meets the fol- propriate. lowing specifications. The engine cannot be Your Yamaha dealer can help you select the started if battery voltage is too low. right propeller for your boating needs. Select Cold cranking amps (CCA/SAE): a propeller that will allow the engine to reach 380–1150 A...
  • Page 22: Engine Oil Requirements

    3.7 L (3.91 US qt, 3.26 Imp.qt) line or premium unleaded fuel. Yamaha rec- ommends that you use alcohol-free gasoline If oil grades listed under Recommended en- (see Gasoline with Ethanol) whenever possi- gine oil grade 1 are not available, select an al- ble.
  • Page 23 However, if gasoline with Ethanol is the the gasoline in a layer at the bottom of the only fuel available in your area, your Yamaha fuel tank. This ethanol and water mixture is outboard motor is calibrated to run properly...
  • Page 24: Gasoline Additives

    Gasoline Additives use on aluminum may be applied to the out- Gasoline blends change to meet automobile board motor. The original Yamaha paint sur- emission regulations and economic condi- face may be scuffed lightly before applying tions. Additives, added by gasoline distribu-...
  • Page 25: Emission Control Information

    Specifications and requirements Consult your Yamaha dealer for details. EMU25263 Manufactured date label EMU25222 This label is attached to the clamp bracket or Emission control information the swivel bracket. EMU25230 North American models This engine conforms to U.S. Environmental Protection Agency (EPA) regulations for ma- rine SI engines.
  • Page 26 Specifications and requirements ZMU01703 EMU40350 1. Star labels location Three Stars—Ultra Low Emission The three-star label identifies engines that EMU40330 One Star—Low Emission meet the Air Resources Board’s Personal The one-star label identifies engines that Watercraft and Outboard marine engine 2008 meet the Air Resources Board’s Personal exhaust emission standards or the Sterndrive Watercraft and Outboard marine engine 2001...
  • Page 27 Specifications and requirements ZMU05663...
  • Page 28: Components

    Components EMU2579Y Components diagram TIP: * May not be exactly as shown; also may not be included as standard equipment on all models (order from dealer). F75, F90 YAMAHA SPEED Km/h knot mile TRIP TIME BATT mode ZMU07541 1. Top cowling 2.
  • Page 29: Fuel Tank

    Components ZMU05429 1. Tachometer unit (Square type)* 2. Tachometer unit (Round type)* 3. Speedometer unit (Square type)* 4. Speed & fuel meter unit (Square type)* 5. Speed & fuel meter unit (Round type)* 6. Fuel management meter unit (Square type)* EMU25803 Fuel tank If your model was equipped with a portable...
  • Page 30: Fuel Joint

    Components EMU25830 7. Throttle friction adjuster Fuel joint EMU26190 This joint is used to connect the fuel line. Remote control lever EMU43120 Moving the lever forward from the neutral po- Fuel gauge sition engages forward gear. Pulling the lever This gauge shows the approximate amount of back from neutral engages reverse.
  • Page 31: Neutral Throttle Lever

    Components EMU26212 EMU25924 Neutral throttle lever Gear shift lever To open the throttle without shifting into either Move the gear shift lever forward to engage forward or reverse, put the remote control le- the forward gear or rearward to engage the ver in the neutral position and lift the neutral reverse gear.
  • Page 32: Throttle Friction Adjuster

    Components 1. Throttle indicator When constant speed is desired, tighten the EMU25976 adjuster to maintain the desired throttle set- Throttle friction adjuster ting. A friction device provides adjustable resis- EMU25995 tance to movement of the throttle grip or the Engine shut-off cord (lanyard) and remote control lever, and can be set accord- clip ing to operator preference.
  • Page 33: Engine Stop Button

    Components EMU26091 Main switch The main switch controls the ignition system; its operation is described below. “ ” (off) ● With the main switch in the “ ” (off) posi- tion, the electrical circuits are off, and the key can be removed. “...
  • Page 34: Steering Friction Adjuster

    Components EMU26112 the switch “ ” (down) tilts the outboard motor Steering friction adjuster down and trims it down. When the switch is re- A friction device provides adjustable resis- leased, the outboard motor will stop in its cur- tance to the steering mechanism, and can be rent position.
  • Page 35: Variable Trolling Rpm Switches

    Components EWM01031 TIP: WARNING The trolling speed changes approximately ● Use the power trim and tilt switch located 50 r/min each time a switch is pressed. on the bottom cowling only when the boat If the trolling speed has been adjusted, the ●...
  • Page 36: Tilt Support Lever For Power Trim And Tilt Model

    Components ZMU02525 1. Tilt support lever 1. Trim tab 2. Bolt ECM00660 3. Cap NOTICE Do not use the tilt support lever or knob when trailering the boat. The outboard mo- tor could shake loose from the tilt support and fall. If the motor cannot be trailered in the normal running position, use an addi- tional support device to secure it in the tilt position.
  • Page 37: Flushing Device

    ● when the gear shift is in neutral. If the alert system has activated, stop the ● engine and consult a Yamaha dealer imme- diately. TIP: Adding an in-line 10-micron fuel filter has been show to greatly reduce the chance of fuel contamination problems.
  • Page 38: Instruments And Indicators

    Instruments and indicators EMU31414 If the trim angle of your motor exceeds the ● Digital tachometer trim operating range, the top segment on The tachometer shows the engine speed and the trim meter display will blink. has the following functions. All segments of the display will light momen- tarily after the main switch is turned on and will return to normal thereafter.
  • Page 39: Low Oil Pressure-Alert Indicator

    Instruments and indicators EMU26524 Low oil pressure-alert indicator If oil pressure drops too low, the alert indicator will start to blink. For further information, see page 42. ECM00022 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 40: Fuel Gauge

    Press the “ ” (mode) button until the the gauge will give false readings. Consult desired hour is displayed. your Yamaha dealer on how to correctly set Press the “ ” (set) button again, the the selector switch. NOTICE: Running out of minute display will begin blinking.
  • Page 41: Fuel Level-Alert Indicator

    Instruments and indicators Get back to the port soon if an alert device has activated. For charging the battery, consult your Yamaha dealer. The clock operates on battery power. Discon- necting the battery will stop the clock. Reset the clock after connecting the battery.
  • Page 42: Start-Up Checks

    For the optional sensor, consult your Yamaha dealer. The ta- chometer unit is available in round and square types. Check your tachometer unit type.
  • Page 43: Low Oil Pressure-Alert

    Do not continue to operate the engine if ● dealer. a alert device has activated. Consult ECM01601 your Yamaha dealer if the problem can- NOTICE not be located and corrected. Do not continue to run the engine if the low oil pressure alert device has activated.
  • Page 44: Water Separator Alert

    (fuel filter) while cruising. In such an event, stop the engine im- mediately and see page 88 of this manual to drain the water from the fuel filter. Get back to the port soon and consult a Yamaha dealer immediately. ZMU05425 ZMU05423...
  • Page 45: Command Link Multifunction Speed & Fuel Meter

    3. Multifunction display connecting an optional sensor to the unit. In addition, if optional sensors are connected to the unit, water surface temperature display, depth display, and clock will also be available. For the optional sensors, consult your Yamaha dealer.
  • Page 46: Command Link Multifunction Speedometer

    Instruments and indicators temperature display, depth display, and clock will also be available. For the optional sen- sors, consult your Yamaha dealer. After the main switch is first turned to the “ ” (on) position, all of the displays come on as a test.
  • Page 47 Instruments and indicators fuel display. The chosen display is selected using the “ ” (set) and “ ” (mode) but- tons as described in this section. After the main switch is first turned to the “ ” (on) position, all of the displays come on as a test.
  • Page 48: Engine Control System

    Alert system ECM00091 NOTICE Do not continue to operate the engine if a alert device has activated. Consult your Yamaha dealer if the problem cannot be lo- cated and corrected. EMU2681C Overheat alert This engine has an overheat-alert device. If...
  • Page 49 If the alert system has activated, stop the en- gine 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 device does not switch off, consult your Yamaha dealer.
  • Page 50: Installation

    Improper mounting of the outboard mo- ● can help determine the optimum mounting tor could result in hazardous conditions height. Consult your Yamaha dealer or boat such as poor handling, loss of control, manufacturer for further information on deter- or fire hazards. For permanently mount- mining the proper mounting height.
  • Page 51 Installation depth finder transducers) can create air- borne water spray while the boat is cruising. If the outboard motor is operat- ed 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.
  • Page 52: Operation

    Operation EMU36381 For the first hour of operation: First-time operation Run the engine at varying speeds up to EMU36391 2000 r/min or approximately half throttle. Fill engine oil For the second hour of operation: The engine is shipped from the factory without Increase engine speed as much as nec- engine oil.
  • Page 53: Remove Cowling

    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. ZMU06106 ZMU06107 EMU36902...
  • Page 54: Engine Shut-Off Cord (Lanyard)

    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.
  • Page 55: Flushing Device

    ZMU06166 cowling by pushing it with both hands. If the 1. Fitting top cowling is loose, have it repaired by your 2. Flushing device Yamaha dealer. EMU36963 Install cowling Be sure that all cowling lock levers are re- leased. Be sure that the rubber seal is seated all the way around the top cowling.
  • Page 56: Power Trim And Tilt System

    Operation EMU34581 battery and cables must be clean and proper- Power trim and tilt system ly connected or the battery will not start the EWM01930 engine. WARNING Refer to the battery manufacturer’s instruc- Never get under the lower unit while it is ●...
  • Page 57 Operation While pressing and holding the pressure relief tab under the fuel tank cap, slowly turn the fuel tank cap counterclockwise 1/4 turn. ZMU07443 1. Fuel joint 2. Fuel hose Turn the air vent screw clockwise to close ZMU07446 1. Pressure relief tab 2.
  • Page 58: Operating Engine

    Operation Fuel tank capacity: 25 L (6.61 US gal, 5.50 Imp.gal) ZMU07444 1. Air vent screw EMU27452 Operating engine ZMU07448 EWM00420 TIP: WARNING Wipe up any spilled gasoline immediately ● Before starting the engine, make sure ● with dry rags. that the boat is tightly moored and that Dispose of rags properly according to local ●...
  • Page 59: Starting Engine

    Operation ZMU07445 1. Arrow 1. Air vent screw 2. Primer pump Firmly connect the other end of the fuel hose to the joint on the fuel tank. TIP: When using the fuel tank on the boat, a fuel ● valve may also be equipped on the boat. Open the fuel valve.
  • Page 60 Operation Avoid accidentally pulling the cord dur- Place the throttle grip in the “ ” ● ing normal operation. Loss of engine (start) position. After the engine starts, re- power means the loss of most steering turn the throttle to the fully closed posi- control.
  • Page 61 Operation ing, return the main switch to “ ” (on), wait 10 seconds, then crank the engine again. [ECM00192] TIP: When the engine is cold, it needs to be ● warmed up. For further information, see page 56. If the engine is warm and fails to start, open ●...
  • Page 62: Checks After Starting Engine

    Stop the engine and check whether the cooling water inlet on the lower case or START the cooling water pilot hole is blocked. Consult your Yamaha dealer if the prob- lem cannot be located and corrected. ZMU01881 Immediately after the engine starts, re- lease the main switch to return it to “...
  • Page 63: Checks After Engine Warm Up

    Operation essary. Consult your Yamaha dealer if the cause for the low oil pressure alert cannot be found. [ECM01831] EMU36531 Checks after engine warm up EMU36541 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.
  • Page 64: Stopping Boat

    Operation To shift from in gear (forward/reverse) to neu- tral Close the throttle so that the engine slows to idle speed. EMU31742 Stopping boat EWM01510 WARNING 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.
  • Page 65: Stopping Engine

    Operation 1. “ ” switch 2. “ ” switch To increase the trolling speed, press the “ ” switch. To decrease the trolling speed, press the “ ” switch. TIP: The trolling speed changes approximately ● 50 r/min each time a switch is pressed. If the trolling speed has been adjusted, the ●...
  • Page 66: Trimming Outboard Motor

    Operation 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.
  • Page 67: Adjusting Trim Angle (Power Trim And Tilt)

    Operation EMU27888 Adjusting trim angle (Power trim and tilt) EWM00753 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 68: 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 69: Procedure For Tilting Up (Power Trim And Tilt Models)

    Operation ECM00241 NOTICE Before tilting the outboard motor, stop ● the engine by following the procedure on page 59. 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 ●...
  • Page 70: Procedure For Tilting Down (Power Trim And Tilt Models)

    Operation could shake loose from the tilt support and fall. If the motor cannot be trail- ered in the normal running position, use an additional support device to secure it in the tilt position. For more detailed information, see page 67. [ECM01641] Push the power trim and tilt switch “...
  • Page 71: Shallow Water

    Operation ZMU04255 Slightly tilt the outboard motor up to the EMU28062 Shallow water desired position using the power trim and EMU32851 tilt switch. WARNING! Using the power Power trim and tilt models trim and tilt switch on the bottom The outboard motor can be tilted up partially cowling while the boat is moving or to allow operation in shallow water.
  • Page 72 Operation and clogging of the cooling water passages with deposits. Also, rinse the exterior of the outboard motor with fresh water. Operating in water containing mud, sand, silt, debris, or vegetation Mud, sand, silt, debris, and vegetation in the water may restrict water flow into the cooling water inlet covers or clog internal water pas- sages.
  • Page 73: Maintenance

    Severe injury could oc- is advisable to have your outboard motor ser- cur if the outboard motor accidentally viced by an authorized Yamaha dealer prior to falls. storage. However, you, the owner, with a min- Do not use the tilt support lever or knob ●...
  • Page 74: Procedure

    Stabilizer” to each gallon of fuel. Keep hands, hair, and clothes away TIP: from the flywheel and other rotating The use of “Yamaha Fuel Conditioner and parts while the engine is running. Stabilizer” eliminates the need to drain the [EWM00091] fuel system.
  • Page 75: Lubrication

    81. Inspect the oil for the presence of water that indicates a leaky seal. Seal replacement should be performed by an authorized Yamaha dealer prior to use. Grease all grease fittings. For further de- tails, see page 75. TIP: For long-term storage, fogging the engine with oil is recommended.
  • Page 76: Cleaning The Outboard Motor

    Wash the exterior of the outboard motor Yamaha dealer or other qualified mechan- using fresh water. NOTICE: Do not ic do the work. spray water into the air intake.
  • Page 77: Replacement Parts

    Yamaha marine dealership. A service manual is available for purchase through your Yamaha dealer for owners who have the mechanical skills, tools, and other equipment necessary to perform mainte- nance not covered by this owner’s manual.
  • Page 78: Maintenance Chart 1

    ● 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...
  • Page 79 Maintenance Initial Every Item Actions 20 hours 100 hours 300 hours 500 hours (3 months) (1 year) (3 years) (5 years) Fuel line (High pres- Inspection sure) Fuel line (High pres- Inspection or replace- sure) ment as necessary Fuel line (Low pres- Inspection sure) Fuel line (Low pres-...
  • Page 80: Maintenance Chart 2

    Wire harness connec- Inspection or replace- tions/wire coupler con- ment as necessary nections (Yamaha) Meter/gauge Inspection Fuel tank (Yamaha por- Inspection and clean- table tank) ing as necessary EMU34451 Maintenance chart 2 Every Item Actions...
  • Page 81: Greasing

    Maintenance EMU28934 Greasing Yamaha marine grease (Water resistant grease) F75, F90 ZMU04266...
  • Page 82: Cleaning And Adjusting Spark Plug

    Do not attempt to di- agnose any problems yourself. Instead, take the outboard motor to a Yamaha dealer. You 1. Spark plug gap should periodically remove and inspect the 2.
  • Page 83: Changing Engine Oil

    This procedure must be performed while you are not familiar with the procedure for the outboard motor is in the water. A flush- changing the engine oil, consult your Yamaha ing attachment or test tank can be used. dealer. Put the outboard motor in an upright po- If the boat is not equipped with a tachometer sition (not tilted).
  • Page 84 Consult your Yamaha Put a new gasket on the oil drain screw. dealer if the oil level is out of specified lev- Apply a light coat of oil to the gasket and install the drain screw.
  • Page 85: Inspecting Wiring And Connectors

    TIP: propeller from turning. 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.
  • Page 86: Removing Propeller

    Make sure to use a new cotter pin and bend the ends over securely. Otherwise, the propeller could come off during opera- tion and be lost. Apply Yamaha marine grease or a corro- sion resistant grease to the propeller shaft. Check the propeller shaft oil seal for dam- ●...
  • Page 87: Changing Gear Oil

    [ECM00713] falls. TIP: Tilt the outboard motor so that the gear oil For disposal of used oil, consult your Yamaha drain screw is at the lowest point possi- dealer. ble. Put the outboard motor in a vertical posi- Place a suitable container under the gear tion.
  • Page 88: Inspecting And Replacing Anode(S)

    TIP: Tightening torque: Inspect ground leads attached to external an- 9 Nm (0.92 kgf-m, 6.6 ft-lb) odes on equipped models. Consult a Yamaha dealer for inspection and replacement of inter- EMU29316 Inspecting and replacing anode(s) nal anodes attached to the power unit.
  • Page 89: Connecting The Battery

    3. Battery charge. If the battery needs charging, The electrical contacts of the battery and consult your Yamaha dealer. cables must be clean and properly con- Check the battery connections. They nected, or the battery will not start the en- should be clean, secure, and covered by gine.
  • Page 90 Maintenance Disconnect the positive cable(s) and re- move the battery from the boat. Clean, maintain, and store the battery ac- cording to the manufacturer’s instruc- tions.
  • Page 91: Trouble Recovery

    Yamaha outboard motors. Therefore Q. Has fuel pump malfunctioned? some items may not apply to your model. A. Have serviced by a Yamaha dealer. If your outboard motor requires repair, bring it to your Yamaha dealer. Q. Are spark plug(s) fouled or of incorrect...
  • Page 92 A. Return to normal operating position. A. Fill tank with clean, fresh fuel. Q. Is carburetor clogged? Q. Is fuel filter clogged? A. Have serviced by a Yamaha dealer. A. Clean or replace filter. Q. Is fuel joint connection incorrect? Q. Have ignition parts failed? A.
  • Page 93 Q. Is fuel system obstructed? Q. Is water pump or thermostat faulty? A. Check for pinched or kinked fuel line or oth- A. Have serviced by a Yamaha dealer. er obstructions in fuel system. Q. Is there excess water in fuel filter cup? Q.
  • Page 94: Temporary Action In Emergency

    A. Tighten bolt. EWM00631 WARNING Q. Is steering pivot loose or damaged? Substituting an incorrect fuse or a piece of A. Tighten or have serviced by a Yamaha wire could allow excessive current flow. dealer. This could cause electric system damage EMU29433 Temporary action in emergency and a fire hazard.
  • Page 95: Power Trim And Tilt Will Not Operate

    Trouble Recovery ZMU04249 1. Manual valve screw Put the engine in the desired position, then tighten the manual valve screw by turning it clockwise. EMU31605 Water separator-alert indicator blinks while cruising EWM01500 WARNING Gasoline is highly flammable, and its va- 1.
  • Page 96 Trouble Recovery 1. Water separator-alert indicator Stop the engine. Remove the top cowling. Remove the plastic tie. 1. Water detection switch coupler Unscrew the filter cup from the filter hous- ing. NOTICE: Be careful not to twist the water detection switch lead when un- screwing the filter cup.
  • Page 97: Starter Will Not Operate

    It 11. Start the engine and make sure that the could whip behind you and injure some- water separator-alert indicator remains one. off. Have a Yamaha dealer inspect the outboard motor after returning to port.
  • Page 98: Emergency Starting Engine

    Trouble Recovery An unguarded, rotating flywheel is very ● dangerous. Keep loose clothing and other objects away when starting the en- gine. Use the emergency starter rope only as instructed. Do not touch the fly- wheel or other moving parts when the engine is running.
  • Page 99: Treatment Of Submerged Motor

    EMU33501 Treatment of submerged motor If the outboard motor is submerged, immedi- ately take it to a Yamaha dealer. Otherwise some corrosion may begin almost immediate- ly. NOTICE: Do not attempt to run the out- board motor until it has been completely inspected.
  • Page 100: Consumer Information

    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 101 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 102: 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 103 — 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 104 Printed in Japan June 2013–2.4 × 1 CR Printed on recycled paper...

This manual is also suitable for:

F90

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