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OWNER’S MANUAL U.S.A.Edition Read this manual carefully before operating this LIT-18626-08-08 outboard motor. 6D6-28199-16...
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ZMU01690 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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EMU31283 your machine and this manual. If there is any To the owner question concerning this manual, please con- Thank you for choosing a Yamaha outboard sult your Yamaha dealer. motor. This Owner’s Manual contains infor- TIP: mation needed for proper operation, mainte- The F75TR, F90TR and the standard acces- nance and care.
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 ....
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Table of contents Operation ......... 46 Fuel filter/Water separator....29 Alert indicator ........30 First-time operation ....... 46 Instruments and indicators .... 31 Fill engine oil ........46 Indicators........31 Breaking in engine......46 Low oil pressure-alert indicator ..31 Getting to know your boat ....
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Cleaning and anticorrosion IMPORTANT WARRANTY measures ........66 INFORMATION IF YOU USE Flushing power unit ......66 YOUR YAMAHA OUTSIDE Cleaning the outboard motor.... 67 THE USA OR CANADA ..... 93 Checking painted surface of motor... 67 Periodic maintenance....67 Replacement parts ......
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. EMU36500 The power trim and tilt switches operate even Propeller when the main switch is off.
Have an approved personal flotation device tions. Overloading incorrect weight (PFD) on board for every occupant. Yamaha distribution can compromise the boats han- recommends that you must wear a PFD dling and lead to an accident, capsizing or whenever boating. At a minimum, children swamping.
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.
Safety information EMU33590 Lexington, KY 4051 859-225-9497 Laws and regulations 859-225-9497 Know the marine laws and regulations where www.nasbla.org you will be boating- and obey them. Several sets of rules prevail according to geographic National Marine Manufacturers Associa- location, but all are basically the same as the tion (NMMA) International Rules of the Road.
Safety information Stand-on vessel Overtaking: (you are passing or being The vessel with the right-of-way has the duty passed by another vessel) to continue its course and speed, except to In the following illustration, your boat is in the avoid an immediate collision. When you main- center.
Safety information Crossing vessels, the operator should sound a pro- When two power driven vessels are crossing longed blast on the whistle (4 to 6 seconds). If each other’s path close enough to run the risk another vessel is around the bend, it too of collision, the vessel which has the other on should sound the whistle.
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Safety information are passed on the starboard (right) side when proceeding from open water into port, and black buoys are to port (left) side. When navi- gating out of port, your position with respect to the buoys should be reversed; red buoys should be to port and black buoys to star- board.
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.
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. EMU33831 Warning labels If these labels are damaged or missing, contact your Yamaha dealer for replacements. F75, F90...
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General information ZMU05670 Read Owner’s Manual EMU33843 Symbols The following symbols mean as follows. Notice/Warning ZMU05664 ZMU05696...
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General information Hazard caused by continuous rotation Engine start/ Engine cranking ZMU05665 ZMU05668 Electrical hazard ZMU05666 Remote control lever/gear shift lever operat- ing direction, dual direction ZMU05667...
Specifications and requirements EMU34520 Idling speed (in neutral): Specifications 700 ±50 r/min TIP: Engine: “(AL)” stated in the specification data below Type: represents the numerical value for the alumi- 4-stroke L num propeller installed. Displacement: Likewise, “(SUS)” represents the value for 1596.0 cm³...
The engine cannot be ate. started if battery voltage is too low. Your Yamaha dealer can help you select the Minimum cold cranking amps right propeller for your boating needs. Select (CCA/SAE): a propeller that will allow the engine to reach 380.0 A...
4.5 L (4.76 US qt, 3.96 Imp.qt) Start-in-gear protection Amount of adding engine oil (at Periodic Yamaha outboard motors affixed with the pic- maintenance) Excluding oil filter: 3.5 L (3.70 US qt, 3.08 Imp.qt) tured label or Yamaha-approved remote con-...
There are two types of gasohol: gasohol con- taining ethanol (E10) and that containing While many additives available may reduce deposits, Yamaha recommends the use of methanol. Ethanol can be used if the ethanol Ring Free Fuel Additive, available from your content does not exceed 10% and the fuel Yamaha dealer.
This label is attached to the clamp bracket or electrical tape. the swivel bracket. 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.
Specifications and requirements EMU25280 One Star—Low Emission The one-star label identifies engines that meet the Air Resources Board’s 2001 ex- haust emission standards. Engines meeting these standards have 75% lower emissions than conventional carbureted two-stroke en- gines. These engines are equivalent to the U.S.
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Specifications and requirements EMU25300 Three Stars—Ultra Low Emission The three-star label identifies engines that meet the Air Resources Board’s 2008 ex- haust emission standards. Engines meeting these standards have 65% lower emissions than One Star-Low-Emission engines. ZMU01704 EMU33861 Four Stars—Super Ultra Low Emission The four-star label identifies engines that meet the Air Resources Board’s Sterndrive and Inboard marine engine 2009 exhaust...
Components EMU2579J Components diagram TIP: * May not be exactly as shown; also may not be included as standard equipment on all models. F75, F90 1. Top cowling 2. Top cowling lock lever(s) 3. Anti-cavitation plate 4. Trim tab (anode) 5.
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 (Square type)* EMU26181 Remote control box The remote control lever actuates both the shifter and the throttle.
Components EMU26190 EMU26211 Remote control lever Neutral throttle lever Moving the lever forward from the neutral po- To open the throttle without shifting into either sition engages forward gear. Pulling the lever forward or reverse, put the remote control le- back from neutral engages reverse.
Components EMU25922 Gear shift lever Pulling the gear shift lever towards you puts the engine in forward gear so that the boat moves ahead. Pushing the lever away from you puts the engine in reverse gear so that the boat moves astern. 1.
Components 1. Cord When constant speed is desired, tighten the 2. Clip adjuster to maintain the desired throttle set- 3. Engine shut-off switch ting. EMU25993 Engine shut-off cord (lanyard) and clip The clip must be attached to the engine shut- off switch for the engine to run.
Components EMU26090 EMU26111 Main switch Steering friction adjuster The main switch controls the ignition system; A friction device provides adjustable resis- its operation is described below. tance to the steering mechanism, and can be “ ” (off) set according to operator preference. An ad- With the main switch in the “...
Components the switch “ ” (down) tilts the outboard motor EWM01030 WARNING down and trims it down. When the switch is re- Use the power trim and tilt switch located leased, the outboard motor will stop in its cur- on the bottom engine cowling only when rent position.
Components ZMU02525 1. Variable trolling RPM switch 1. Trim tab 2. Bolt EMU26244 Trim tab with anode 3. Cap EWM00840 WARNING An improperly adjusted trim tab could cause difficult steering. Always test run af- ter the trim tab has been installed or re- placed to be sure steering is correct.
Components ZMU005348 1. Tilt support lever 1. Top cowling lock lever(s) ECM00660 EMU26460 Flushing device NOTICE This device is used to clean the cooling water Do not use the tilt support lever or knob passages of the motor using a garden hose when trailering the boat.
Link Tachometer will blink. The buzzer will sound intermittently only 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.
Instruments and indicators EMU36014 Indicators EMU36023 Low oil pressure-alert indicator If oil pressure drops too low, this indicator will light up. 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.
Instruments and indicators EMU36050 Tachometer The tachometer displays engine speed in hundreds of revolutions per minute (r/min). For example, if the tachometer display reads “22” then the engine speed is 2200 r/min. EMU26621 Trim meter This meter shows the trim angle of your out- board motor.
Instruments and indicators ZMU01736 1. Speedometer 1. Low oil pressure-alert indicator 2. Fuel gauge EMU26583 Overheat-alert indicator 3. Trip meter/clock/voltmeter 4. Alert indicator(s) If the engine temperature rises too high, the alert indicator will start to blink. For further in- All segments of the display will light momen- formation on reading the indicator, see page tarily after the main switch is turned on and...
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.
Yamaha dealer. cooling water pressure display will be avail- able. For the optional sensor, consult your Yamaha dealer. The tachometer unit is avail- able in round or square types. Check your ta- chometer unit type. 1. Low battery indicator ZMU05415 1.
(on). After all the displays come on and the to- tal hour display comes on, the gauge will change to normal operation. If the buzzer sounds and the water separator-alert indica- tor blinks, consult your Yamaha dealer imme- diately. ZMU05417 TIP: 1.
Do not continue to operate the engine if low oil pressure alert device has activated. a alert device has activated. Consult Serious engine damage will occur. your Yamaha dealer if the problem can- not be located and corrected. EMU36221 Overheat alert...
Instruments and indicators drain the water from the fuel filter. Get back to the port soon and consult a Yamaha dealer immediately. ZMU05425 ZMU05423 ZMU05426 ECM00920 NOTICE ZMU05424 In such an event, the engine will not oper- ECM00910 ate properly. Consult a Yamaha dealer im- NOTICE mediately.
The chosen display is selected available. For the optional sensors, consult by using the “ ” (set) and “ ” (mode) your Yamaha dealer. buttons as described in this section. For more information, see the operation manual origi- nally supplied with the meter.
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Instruments and indicators After the main switch is first turned on, all the displays come on as a test. After a few sec- onds, the gauge will change to normal opera- tion. For more information, see the operation man- ual originally supplied with the meter. ZMU05438 1.
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. EMU2681A Overheat alert This engine has an overheat-alert device. If...
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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.
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.
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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.
Operation EMU36380 TIP: First-time operation Failure to follow the break-in procedure could EMU36390 Fill engine oil result in reduced engine life or even severe The engine is shipped from the factory without engine damage. Run the engine in the water, engine oil.
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 ZMU06106 tank should be checked and cleaned by a Yamaha dealer. ZMU06107...
Operation EMU36900 Controls Tiller handle models: Turn the tiller handle fully to the left and right to make sure operation is smooth. Turn the throttle grip from the fully closed to the fully open position. Make sure that it turns smoothly and that it completely re- turns to the fully closed position.
[ECM01800] ZMU06132 After installing, check the fitting of the top cowling by pushing it with both hands. If the top cowling is loose, have it repaired by your Yamaha dealer. ZMU06166 1. Fitting 2. Flushing device EMU36961 Install cowling Be sure that all cowling lock levers are re- leased.
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 tions for checks for your particular battery.
Operation Wipe up any spilled gasoline immediately with dry rags. Dispose rags properly. Ac- cording to local laws or regulations. EMU27451 Operating engine EMU27482 Feeding fuel EWM00420 WARNING Before starting the engine, make sure that the boat is tightly moored and that 1.
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Operation Turn the main switch to “ ” (start), TIP: and hold it for a maximum of 5 seconds. The start-in-gear protection device prevents the engine from starting except when in neu- tral. Attach the engine shut-off cord to a se- cure place on your clothing, or your arm or leg.
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Operation TIP: When the engine is cold, it needs to be warmed up. For further information, see page 54. If the engine is warm and fails to start, open the throttle slightly and try to start the en- gine again. If the engine still fails to start, see page 80.
Stop the engine and check whether the cooling water inlet on the lower case or the cooling water pilot hole is blocked. Consult your Yamaha dealer if the prob- lem cannot be located and corrected. ZMU01881 Immediately after the engine starts, re- lease the main switch to return it to “...
Operation EMU36530 Checks after engine warm-up EMU36540 Shifting While tightly moored, and without applying throttle, confirm that the engine shifts smooth- ly into forward and reverse, and back to neu- tral. EMU36980 Stop switches Turn the main switch to “ ”, or press the engine stop button and make sure the en- 1.
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.
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 engine returns to the normal trolling speed when the engine is stopped and restarted...
Operation TIP: The engine can also be stopped by pulling the cord and removing the clip from the engine shut-off switch, then turning the main switch to “ ” (off). EMU27862 Trimming outboard motor EWM00740 WARNING Excessive trim for the operating condi- tions (either trim up or trim down) can cause boat instability and can make steer- ing the boat more difficult.
Operation Adjust the outboard motor trim angle using Make test runs with the trim set to different an- the power trim and tilt switch. gles to find the position that works best for your boat and operating conditions. EMU27911 Adjusting boat trim When the boat is on plane, a bow-up attitude results in less drag, greater stability and effi- ciency.
Operation EWM00221 WARNING Be sure all people are clear of the out- board motor when tilting up and down, Body parts can be crushed between the motor and the clamp bracket when the mo- tor is trimmed or tilted. EWM00250 WARNING Leaking fuel is a fire hazard.
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Operation ZMU04232 Press the power trim and tilt switch “ ” Pull the tilt support lever toward you to (up) until the outboard motor has tilted up support the engine. WARNING! After completely. tilting the outboard motor, be sure to support it with the tilt support knob or tilt support lever.
Operation tilt switch “ ” (down) to retract the trim rods. NOTICE: Be sure to retract the trim rods completely during mooring. This protects the rods from marine growth and corrosion which could damage the power trim and tilt mecha- nism.
Cruising in muddy, turbid, or acidic water Yamaha strongly recommends that you use the optional chromium-plated water pump kit (see page 17) 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.
USE CARE when transporting fuel tank, is advisable to have your outboard motor ser- whether in a boat or car. viced by an authorized Yamaha dealer prior to DO NOT fill fuel container to maximum storage. However, you, the owner, with a min- capacity.
Keep hands, hair, and clothes away from the flywheel and other rotating TIP: parts while the engine is running. The use of “Yamaha Fuel Conditioner and Stabilizer” eliminates the need to drain the [EWM00091] fuel system. Consult your Yamaha dealer or...
77. 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 72. TIP: For long-term storage, fogging the engine with oil is recommended.
If necessary, clean and paint A service manual is available for purchase the areas. A touch-up paint is available from through your Yamaha dealer for owners who your Yamaha dealer. have the mechanical skills, tools, and other...
Maintenance EMU28511 Replacement parts If replacement parts are necessary, use only genuine Yamaha parts or parts of equivalent design and quality. Any part of inferior quality may malfunction, and the resulting loss of control could endanger the operator and pas- sengers.
When operating in salt water, muddy, other turbid (cloudy), acidic water, the engine should be flushed with clean water after each use. The “ ” symbol indicates the check-ups which you may carry out yourself. The “ ” symbol indicates work to be carried out by your Yamaha dealer. Initial Every Item Actions...
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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- Inspection or replace-...
Main switch/stop Inspection or replace- switch/choke switch ment as necessary Wire harness connec- Inspection or replace- tions/Wire coupler con- ment as necessary nections (Yamaha) Meter/gauge Inspection EMU34451 Maintenance chart 2 Every Item Actions 1000 hours Guide exhaust/ex- Inspection or replace-...
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.
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10. Recheck the oil level using the dipstick to be sure the level falls between the upper and lower marks. Consult your Yamaha dealer if the oil level is out of specified lev- ZMU06195 1. Oil changer Add the correct amount of oil through the filler hole.
Put a wood block between the anti-cavi- For more information on the disposal of tation plate and the propeller to prevent the used oil, consult your Yamaha dealer. propeller from turning. Change the oil more often when operating the engine under adverse conditions such as extended trolling.
Be sure to use a new cotter pin and bend the ends over securely. Otherwise the pro- peller could come off during operation 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- Install the spacer (if equipped), thrust age.
Never get under the lower unit while it is which can cause gear damage. Con- tilted, even when the tilt support lever or sult a Yamaha dealer for repair of the knob is locked. Severe injury could oc- lower unit seals.
This procedure con- Inspect ground leads attached to external an- tains typical checks that apply to many batter- odes on equipped models. Consult a Yamaha ies, but you should always refer to the battery dealer for inspection and replacement of inter- manufacturer’s instructions.
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.
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...
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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.
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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.
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.
Trouble Recovery ZMU04249 1. Manual valve screw Put the engine in the desired position, then tighten the manual valve screw by turning it clockwise. EMU31604 Water separator-alert indicator blinks while cruising EWM01500 WARNING Gasoline is highly flammable, and its va- 1.
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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.
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.
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.
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.