Yamaha F15 Owner's Manual
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Yamaha F15 Owner's Manual

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F15
F20
OWNER'S MANUAL
Read this manual carefully before operating this
LIT-18626-11-11
outboard motor.
6AG-28199-3D-E0

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Summary of Contents for Yamaha F15

  • Page 1 OWNER’S MANUAL Read this manual carefully before operating this LIT-18626-11-11 outboard motor. 6AG-28199-3D-E0...
  • Page 2 EMU25064 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

    Any damage tain maximum enjoyment from your new resulting from neglect of these instructions is Yamaha. If you have any question about the not covered by warranty. operation or maintenance of your outboard Some countries have laws or regulations re- motor, please consult a Yamaha dealer.

  • Page 4: Table Of Contents

    Table of contents Safety information......1 Specifications and requirements ........14 Outboard motor safety ..... 1 Specifications......... 14 Propeller ..........1 Rotating parts ........1 Installation requirements....15 Hot parts..........1 Boat horsepower rating ..... 15 Electric shock ........1 Mounting motor .........
  • Page 5 Table of contents Engine stop button ......29 Flushing device ......... 44 Manual starter handle......30 Install top cowling ......44 Starter button........30 Checking power tilt system....45 Main switch........30 Battery ..........45 Filling fuel........45 Power tilt switch......... 30 Steering friction adjuster....
  • Page 6 Flushing power unit ......71 IMPORTANT WARRANTY Cleaning the outboard motor..... 71 INFORMATION IF YOU USE Checking painted surface of YOUR YAMAHA OUTSIDE outboard motor....... 72 THE U.S.A. OR CANADA ... 99 Periodic maintenance..... 72 Replacement parts ......72 INDEX ..........100 Maintenance interval guidelines ..

  • Page 7: Safety Information

    Safety information tor and the clamp bracket when the motor is EMU33623 Outboard motor safety trimmed or tilted. Keep body parts out of this Observe these precautions at all times. area at all times. Be sure no one is in this area before operating the power tilt mecha- EMU36502 Propeller...

  • Page 8: Gasoline Exposure And Spills

    Overloading or incorrect weight Have an approved PFD on board for every distribution can compromise the boats han- occupant. Yamaha recommends that you dling and lead to an accident, capsizing or must wear a PFD whenever boating. At a...

  • Page 9: Avoid Collisions

    Safety information EMU33773 EMU44161 Avoid collisions Accident reporting Scan constantly for people, objects, and oth- Boat operators are required by law to file a er boats. Be alert for conditions that limit your Boating Accident Report with their boating visibility or block your vision of others. law enforcement agency if their boat is in- volved in any of the following accidents: There is loss of life or probable loss of...

  • Page 10: Passenger Training

    Safety information go to boatus.org. For Canada In the U.S.A. All operators of pleasure craft must illustrate United States Coast Guard competency by means of a Pleasure Craft Consumer Affairs Staff (G-BC) Operators Card with the exception of Per- Office of Boating, Public, and Consumer Af- sonal Water Craft used for rental purposes fairs which require a rental checklist be complet-...

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

    Safety information Suite 8 vessel. Normally, you should not cross in Bolton, ON front of the vessel with the right-of-way. You L7E 1H1 should slow down or change directions brief- http://www.nmma.org/ ly and pass behind the other vessel. You should always move in such a way that the operator of the other vessel can see what EMU33692 Basic boating rules (Rules of...

  • Page 12: Other Special Situations

    Safety information Meeting Overtaking If you are meeting another power vessel If you are passing another vessel, you are head on, and are close enough to run the risk the “Give-Way” vessel. This means that the of collision, neither of you has the right-of- other vessel is expected to maintain its way Both of you should alter course to avoid course and speed.
  • Page 13 Safety information trawls are considered to be “fishing vessels” This system uses buoys and signs with dis- under the International Rules. Vessels with tinctive shapes and colors to show regulatory trolling lines are not considered fishing ves- or advisory information. These markers are sels.
  • 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 ZMU01692 reference in case your outboard motor is sto- 1. Serial number len.
  • Page 16 General information regulations for each country. This label is affixed to the clamp bracket or swivel bracket. ZMU08191 1. ICES-002 Compliance Label ZMU05590 Manufactured date The manufactured date is stamped on the la- 1. Compliance mark and manufactured date bel for the engines that conform to the regu- label location lations for U.S.

  • Page 17: 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. ZMU07439...
  • Page 18 General information 6EE-H1994-40 6EE-H1995-40 6EE-H1994-50 6EE-H1995-50 6EE-G2794-40 6EE-G2794-50 ZMU05740 EMU33913 Contents of labels EWM01672 The above warning labels mean as follows. WARNING Read Owner’s Manuals and labels.  EWM01692 Wear an approved personal flotation  WARNING device (PFD). Emergency starting does not have start- Attach engine shut-off cord (lanyard) to ...
  • Page 19 General information Electrical hazard EMU35133 Symbols The following symbols mean as follows. Notice/Warning ZMU05666 ZMU05696 Read Owner’s Manual ZMU05664 Hazard caused by continuous rotation ZMU05665...

  • Page 20: Specifications And Requirements

    Specifications and requirements Dry weight (AL) S: EMU34522 Specifications 51 kg (112 lb) (F15MHA, F20MHA) TIP: 52 kg (115 lb) (F20EA) 54 kg (119 lb) (F15EHA, F20EHA) “(AL)” stated in the specification data below 57 kg (126 lb) (F20PA) represents the numerical value for the alumi- Dry weight (AL) L: num propeller installed.

  • Page 21: Installation Requirements

    Specifications and requirements F20EA, F20EHA, F20PA, F20PHA) Recommended engine oil: Manual starter (F15MHA, F20MHA) YAMALUBE 4M FC-W or 4-stroke Starting carburetion system: outboard motor oil Prime start Recommended engine oil grade 1: Valve clearance IN (cold engine): SAE 10W-30/10W-40/5W-30 0.15–0.25 mm (0.0059–0.0098 in) API SE/SF/SG/SH/SJ/SL Valve clearance EX (cold engine): Engine oil quantity (without oil filter re-...

  • Page 22: Mounting Motor

    The battery cable size and length are critical. EMU25695 Battery requirements Consult your Yamaha dealer about the bat- tery cable size and length. EMU25716 Specifications of Battery Use a fully charged battery that meets the...

  • Page 23: Without A Rectifier Or Rectifier Regulator

    Yamaha dealer Your Yamaha dealer can help you select the about battery selection and correct wiring. right propeller for your boating needs. Select Battery isolator...

  • Page 24: Engine Oil Requirements

    1.6 L (1.69 US qt, 1.41 Imp.qt) pinging occurs, use a different brand of gas- Engine oil quantity (with oil filter re- oline or premium unleaded fuel. Yamaha placement): 1.8 L (1.90 US qt, 1.58 Imp.qt) recommends that you use alcohol-free gaso-...
  • Page 25 However, if gasoline with Ethanol is the from the gasoline in a layer at the bottom only fuel available in your area, your Yamaha of the fuel tank. This ethanol and water outboard motor is calibrated to run properly...

  • Page 26: Gasoline Additives

    In ad- use on aluminum may be applied to the out- dition, gasoline used for boating will typically board motor. The original Yamaha paint sur- age longer between refills than gasoline face may be scuffed lightly before applying...

  • Page 27: Motor Disposal Requirements

    Your outboard motor is labeled with a Cali- Spare parts, such as an extra set of spark  fornia Air Resources Board (CARB) star la- plugs. bel. See below for a description of your Consult your Yamaha dealer for details. particular label.
  • Page 28 Specifications and requirements gines. ZMU05623 ZMU01703 1. Star labels location EMU40351 Three Stars—Ultra Low Emission The three-star label identifies engines that EMU40331 One Star—Low Emission meet the Air Resources Board’s Personal The one-star label identifies engines that Watercraft and Outboard marine engine meet the Air Resources Board’s Personal 2008 exhaust emission standards or the Watercraft and Outboard marine engine...
  • Page 29 Specifications and requirements ZMU05663...

  • Page 30: Components

    Components EMU46721 Components diagram TIP: * May not be exactly as shown; also may not be included as standard equipment on all mod- els (order from dealer). F15EHA, F15PHA, F20EA, F20EHA, F20PA, F20PHA ZMU07498 1. Top cowling 16. Clip* 2. Cowling lock lever 17.

  • Page 31: Fuel Tank

    Components F15MHA, F20MHA ZMU07413 1. Top cowling 21. Flushing device 2. Cowling lock lever 22. Fuel tank* 3. Drain screw 4. Anti-cavitation plate EMU25804 Fuel tank 5. Trim tab If your model was equipped with a portable 6. Propeller fuel tank, its function is as follows. 7.

  • Page 32: Fuel Joint

    Components allowed to enter the fuel tank while operating the engine. EMU26182 Remote control box The remote control lever actuates both the shifter and the throttle. The electrical switch- es are mounted on the remote control box. ZMU07442 1. Fuel joint ZMU01723 2.

  • Page 33: Neutral Interlock Trigger

    Components ZMU01725 ZMU01728 1. Fully open 1. Neutral “ ” 2. Fully closed 2. Forward “ ” 3. Reverse “ ” TIP: 4. Shift 5. Fully closed The neutral throttle lever will operate only 6. Throttle when the remote control lever is in neutral. 7.

  • Page 34: Throttle Grip

    Components ZMU05337 ZMU05519 1. Throttle indicator 1. Forward “ ” 2. Neutral “ ” EMU25977 3. Reverse “ ” Throttle friction adjuster A friction device provides adjustable resis- EMU25943 Throttle grip tance to movement of the throttle grip or the The throttle grip is on the tiller handle.

  • Page 35: Engine Shut-Off Cord (Lanyard) And Clip

    Components ZMU02001 ZMU01716 When constant speed is desired, tighten the 1. Cord adjuster to maintain the desired throttle set- 2. Clip ting. 3. Engine shut-off switch EMU25996 Engine shut-off cord (lanyard) and clip The clip must be attached to the engine shut- off switch for the engine to run.

  • Page 36: Manual Starter Handle

    Components EMU26092 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 37: Steering Friction Adjuster

    Components 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 accident.

  • Page 38: Trim Tab

    Components Check the tiller handle for smooth move-  Bolt tightening torque: ment when the lever is turned to the star- 8 Nm (0.82 kgf-m, 5.9 ft-lb) board side “B”. EMU26263 Do not apply lubricants such as grease to  Trim rod (tilt pin) the friction areas of the steering friction ad- The position of the trim rod determines the...

  • Page 39: Tilt Support Knob

    Components EMU26334 Tilt support bar The tilt support bar keeps the outboard motor in the tilted up position. ZMU05631 1. Tilt lock lever (Release / tilt-up) To lock it, set the tilt lock lever in the lock po- ZMU05528 sition. To release, push the tilt lock lever in ECM01661 the release position.

  • Page 40: Cowling Lock Lever

    Components ter passages of the motor using a garden hose and tap water. 1. Power tilt unit 2. Power tilt motor ZMU05597 1. Flushing device ECM00661 NOTICE TIP: Do not use the tilt support lever or knob For details on usage, see page 71. when trailering the boat.

  • Page 41: Instruments And Indicators

    Instruments and indicators EMU36016 Indicators EMU36025 Low oil pressure-alert indicator If oil pressure drops too low, this indicator will light up. For further information, see page 36. ECM00023 NOTICE Do not continue to run the engine if the  low oil pressure-alert indicator is on ZMU06257 and the engine oil level is lower.

  • Page 42: Engine Control System

    Check the cooling water inlet for clogging.  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. EMU2681D Overheat alert This engine has an overheat-alert device. If the engine temperature rises too high, the alert device will activate.
  • Page 43 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 44: Installation

    Installation Hold the handgrips and steering brack- EMU26903 Installation ets as shown in the illustration and lift up The information presented in this section is the outboard motor using two people. intended as reference only. It is not possible to provide complete instructions for every possible boat and motor combination.
  • Page 45 Test runs at different heights can help de- termine the optimum mounting height. Consult your Yamaha dealer or boat man- ufacturer for further information on deter- mining the proper mounting height. For instructions on setting the trim angle of ...

  • Page 46: Clamping The Outboard Motor

    This board (if packed). For details, consult could cause loss of control and seri- your Yamaha dealer. WARNING! Avoid ous injury. Make sure the clamp using bolts, nuts or washers other screws are tightened securely. Occa-...

  • Page 47: Operation

    Operation procedure could result in reduced engine EMU36382 First-time operation life or even severe engine damage. [ECM00802] EMU36393 EMU27086 Fill engine oil Procedure for 4-stroke models Your new engine requires a period of 10 The engine is shipped from the factory with- hours break-in to allow mating surfaces of out engine oil.

  • Page 48: Fuel Level

    If any water is found in the fuel, or if a ver and lift off the top cowling. significant amount of debris is found, the fuel tank should be checked and cleaned by a Yamaha dealer. EMU36443 Fuel system ZMU06169...

  • Page 49: Engine Shut-Off Cord (Lanyard)

    Insert the oil dipstick completely and re- move it again. Check that the oil level on the oil dipstick is between the upper and lower marks. Consult your Yamaha dealer if the oil level is not at the proper level or if it ap-...

  • Page 50: Engine

    ZMU06136 [ECM01802] 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. ZMU06172 1. Fitting...

  • Page 51: Checking Power Tilt System

    EMU36585 Battery Check the battery’s charge. If your boat is equipped with a Yamaha digital speedome- ter, the voltmeter and low battery alert func- tions will help you monitor the battery’s EMU34783 Checking power tilt system charge.
  • Page 52 Operation Securely moor the boat in a well-ventilated Remove the fuel tank from the boat.  area and stop the engine. If the boat is To loosen the air vent screw, turn it trailered, ensure it is stable. counterclockwise until it stops. Do not smoke and keep away from sparks, ...

  • Page 53: Operating Engine

    Operation ZMU07447 ZMU07449 1. Pressure relief tab 1. Fuel tank cap 2. Fuel tank cap Turn the air vent screw clockwise to Fill the fuel tank with fuel. WARNING! close it. Do not overfill. Otherwise fuel can ex- pand and overflow if the temperature increases.

  • Page 54: Sending Fuel (Portable Tank)

    Operation ing the air vent screw. 4. Toward the fuel tank This product emits exhaust gases  Align the fuel joint on the fuel hose with which contain carbon monoxide, a col- the fuel joint on the outboard motor and orless, odorless gas which could cause firmly connect the fuel hose to the joint brain damage or death when inhaled.

  • Page 55: Starting Engine

    Operation that could tear loose. Do not route the firm. During engine operation, place the tank horizontally, otherwise fuel cannot cord where it could become entangled, preventing it from functioning. be drawn from the fuel tank. Avoid accidentally pulling the cord dur- ...
  • Page 56 Operation Place the throttle grip in the “ ” (start) position. ZMU05533 TIP: ZMU06522 The start-in-gear protection device prevents Pull the manual starter handle slowly un- the engine from starting except when in neu- til you feel resistance. Then give a tral.
  • Page 57 Operation friction adjuster. If there is too much TIP: resistance, it could be difficult to If the throttle is opened too much, the en-  move the throttle grip, which could gine speed rises rapidly, causing the out- result in an accident. board motor to swivel toward the starboard [EWM02251] side.
  • Page 58 Operation turn to its original position. NOTICE: or leg. Then install the clip on the other end of the cord into the engine shut-off Never push the starter button while the engine is running. Do not keep switch. the starter motor turning for more than 5 seconds.

  • Page 59: Checks After Starting Engine

    Operation the boat could slow rapidly. This could cause people and objects in the boat to START be thrown forward. Place the remote control lever in neutral. ZMU01774 Immediately after the engine starts, re- lease the main switch and allow it to re- ”...

  • Page 60: Warming Up Engine

    Consult your Yamaha dealer if EMU36981 the problem cannot be located and cor- Stop switches rected.
  • Page 61 Operation equipped). ZMU05729 ZMU01727 TIP: Tiller handle models: The gear shift lever op- 1. Neutral interlock trigger erates only when the throttle grip is in the ful- Move the remote control lever / gear ly closed position. shift lever firmly and crisply forward (for To shift from in gear (forward/reverse) to forward gear) or backward (for reverse neutral...

  • Page 62: Stopping Boat

    Operation tral position. wind direction. EMU27822 Stopping engine Before stopping the engine, first let it cool off for a few minutes at idle or low speed. Stop- ping the engine immediately after operating at high speed is not recommended. EMU43192 Procedure Push and hold the engine stop button or turn the main switch to “...

  • Page 63: Trimming Outboard Motor

    Operation 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 64: Adjusting Trim Angle For Manual Tilt Models

    Operation TIP: EMU27873 Adjusting trim angle for manual tilt The outboard motor trim angle can be models changed approximately 4 degrees by shifting There are 4 or 5 holes provided in the clamp the trim rod one hole. bracket to adjust the outboard motor trim an- EMU27906 Adjusting trim angle (power tilt gle.

  • Page 65: Adjusting Boat Trim

    Operation from a standing start onto plane. ZMU01720 Bow Up Too much trim-out puts the bow of the boat too high in the water. Performance and econ- omy are decreased because the hull of the boat is pushing the water and there is more air drag.

  • Page 66: Tilting Up And Down

    Operation on page 56. 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. EMU43222 Procedure for tilting up (manual tilt models)

  • Page 67: Procedure For Tilting Up (Power Tilt Models)

    Operation ZMU08025 ZMU05528 EMU44650 1. Fuel joint Procedure for tilting up (power tilt 2. Fuel hose models) Place the tilt lock lever (if equipped) in Place the remote control lever / gear the release/up position. shift lever in neutral. ZMU05548 ZMU01771 Pull up the shallow water lever (if equipped).

  • Page 68: Procedure For Tilting Down (Manual Tilt Models)

    Operation lever or knob when trailering the boat. The outboard motor could shake loose from the tilt support and fall. If the motor cannot be trailered in the normal running position, use an additional support device to secure it in the tilt position. For more detailed information, see page 67.

  • Page 69: Procedure For Tilting Down (Power Tilt Models)

    Operation ZMU01936 ZMU05528 Slowly tilt the engine down. EMU44620 Procedure for tilting down (power tilt models) Push the power tilt switch “ ” (up) until the outboard motor is supported by the tilt rod and the tilt support knob becomes free.
  • Page 70 Operation water cruising system is being used. Hitting an underwater obstacle could cause the outboard motor to lift out of the water, resulting in loss of control. Use extra care when operating in re-  verse. Too much reverse thrust can cause the outboard motor to lift out of the water, increasing the chance of ac- cident and personal injury.

  • Page 71: Power Tilt Models

    Operation ZMU05541 ZMU05533 Slowly lower the outboard motor to the Slightly tilt the outboard motor up to the normal position. desired position using the power tilt switch. WARNING! Using the power EMU32862 Power tilt models tilt switch on the bottom cowling The outboard motor can be tilted up partially while the boat is moving or engine is to allow operation in shallow water.

  • Page 72: 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 20) 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 73: Maintenance

    Consult your Leaking fuel is a fire hazard. When  Yamaha dealer for further details. transporting and storing the outboard motor, disconnect the fuel line from the EMU43272 Dismounting the outboard motor outboard motor to prevent fuel from Stop the engine and land the boat.

  • Page 74: Storing Outboard Motor

    Place a towel or something similar under the outboard motor to protect it from damage. EMU28242 Storing outboard motor When storing your Yamaha outboard motor for prolonged periods of time (2 months or longer), several important procedures must be performed to prevent excessive damage.

  • Page 75: Conditioning And Stabilizing Gasoline

    Stabilizer” to each gallon of fuel. vide fuel stability and corrosion protection. TIP: TIP: The use of “Yamaha Fuel Conditioner and Do not fill the fuel tank(s) to the point of over- Stabilizer” eliminates the need to drain the flowing. Approximately 7/8 full will allow fuel system.

  • Page 76: Lubrication

    Fill the tank with fresh water to above the seal. Seal replacement should be per- level anti-cavitation plate. formed by an authorized Yamaha dealer NOTICE: If the fresh water level is be- prior to use. low the level of the anti-cavitation Lubricate all grease fittings. For further plate, or if the water supply is insuffi- details, see page 77.

  • Page 77: Flushing Power Unit

    Maintenance With the engine off, turn on the water tap EMU28446 Flushing power unit and let the water flush through the cool- Perform this procedure right after operation ing passages for about 15 minutes. Turn for the most thorough flushing. off the water and disconnect the garden ECM01531 hose adapter from the garden hose con-...

  • Page 78: Checking Painted Surface Of Outboard Motor

    If necessary, clean and paint the areas. Touch-up paint is A service manual is available for purchase available from your Yamaha dealer. through your Yamaha dealer for owners who have the mechanical skills, tools, and other EMU37013 Periodic maintenance equipment necessary to perform mainte- nance not covered by this owner’s manual.
  • Page 79 More fre- quent maintenance will often pay off many times over in increased engine life and great- er owner satisfaction. Consult your Yamaha dealer for additional maintenance recom- mendations.

  • Page 80: 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 81 Maintenance Initial Every Item Actions Page 20 hours 100 hours 300 hours 500 hours (3 months) (1 year) (3 years) (5 years) Inspection or Fuel filter (can be replacement as disassembled) necessary Fuel line Inspection — Inspection or Fuel line replacement as —...

  • Page 82: Maintenance Chart 2

    Wire harness con- Inspection or nections/wire cou- replacement as — pler connections necessary Inspection and Fuel tank (Yamaha cleaning as neces- — portable tank) sary EMU46230 *1 cylinder head, thermostat cover *2 exhaust cover, cooling water passage cover, Rectifier Regulator cover...

  • Page 83: Greasing

    Maintenance EMU41302 Greasing Yamalube Marine Grease F15EHA, F15MHA, F15PHA, F20EHA, F20MHA, F20PHA ZMU05557...

  • Page 84: Cleaning And Adjusting Spark Plug

    Maintenance F20EA, F20PA ZMU05595 Yamaha dealer. You should periodically re- EMU44850 Cleaning and adjusting spark plug move and inspect the spark plug because The spark plug is an important engine com- heat and deposits will cause the spark plug ponent and is easy to inspect. The condition to slowly break down and erode.

  • Page 85: Checking Fuel Filter

    DPR6EB-9 replace it. For cleaning or replacement of the fuel filter, consult your Yamaha dealer. Be sure to use the specified spark plug, otherwise the engine may not operate properly. Before fitting the spark plug, measure the electrode gap with a wire thickness gauge;...

  • Page 86: Changing Engine Oil

    For idle speed specifications, see page 14. If you have difficulty verifying the idle speed, or the idle speed requires adjustment, consult a Yamaha dealer or other qualified mechanic. ZMU05554 EMU38807 Changing engine oil Start the engine.
  • Page 87 Consult your Add the correct amount of oil through the Yamaha dealer if the oil level is out of filler hole. Put back the filler cap and the specified level.

  • Page 88: Inspecting Wiring And Connectors

    TIP: 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. EMU29116...

  • Page 89: Removing Propeller

    Maintenance sion from cavitation or ventilation, or other 4. Propeller damage. 5. Thrust washer Check the propeller shaft for damage.  Remove propeller, washer Check the splines for wear or damage.  equipped), and thrust washer. Check for fish line tangled around the pro- ...

  • Page 90: Changing Gear Oil

    Insert a new cotter pin can indicate lower unit problem. Con- in the hole and bend the cotter pin ends. sult your Yamaha dealer. NOTICE: Do not reuse the cotter pin. [ECM01901] Otherwise, the propeller can come off during operation.

  • Page 91: Inspecting And Replacing Anode(S)

    7 Nm (0.71 kgf-m, 5.2 ft-lb) amount of metal particles, the gear case may be damaged. Have a EMU29318 Yamaha dealer check and repair the Inspecting and replacing anode(s) outboard motor. [ECM00714] Yamaha outboard motors are protected from TIP: corrosion by sacrificial anodes.

  • Page 92: Checking Battery (For Electric Start Models)

    Consult a functions will help you monitor the bat- Yamaha dealer for inspection and replace- tery’s charge. If the battery needs charg- ment of internal anodes attached to the pow- ing, consult your Yamaha dealer.

  • Page 93: Disconnecting The Battery

    Maintenance nect the black battery cable to the NEG- ATIVE (-) terminal. ZMU01811 1. Red cable 2. Black cable 3. Battery The electrical contacts of the battery and cables must be clean and properly con- nected, or the battery will not start the engine.

  • Page 94: 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 flash- Q. Are spark plug(s) fouled or of incorrect ing, consult your Yamaha dealer.
  • Page 95 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 96 Q. Is fuel system obstructed? Q. Is water pump or thermostat faulty? A. Check for pinched or kinked fuel line or A. Have serviced by a Yamaha dealer. other obstructions in fuel system. Q. Is there excess water in fuel filter cup? Q.

  • Page 97: Temporary Action In Emergency

    EWM00632 Q. Is steering pivot loose or damaged? WARNING A. Tighten or have serviced by a Yamaha Substituting an incorrect fuse or a piece dealer. of wire could allow excessive current EMU29434 flow.

  • Page 98: Power Tilt Will Not Operate

    Trouble Recovery ZMU05565 1. Manual valve screw 1. Fuse puller 2. Cap Put the engine in the desired position, 3. Fuse (20 A) then tighten the manual valve screw by 4. Spare fuse (20 A) turning it clockwise. EMU29534 Starter will not operate If the starter mechanism does not operate (the engine cannot be cranked with the start- er), the engine can be started with an emer-...

  • Page 99: Emergency Starting Engine (Manual Starter Model)

    Trouble Recovery ing normal operation. Loss of engine power means the loss of most steering control. Also, without engine power, the boat could slow rapidly. This could cause people and objects in the boat to be thrown forward. Make sure no one is standing behind ...

  • Page 100: Emergency Starting Engine (Electric Start Model)

    Trouble Recovery repeat the procedure. If the engine fails to start after 4 or 5 tries, open the throttle a small amount (between 1/8 and 1/4) and try again. Also if the engine is warm and fails to start, open the throttle a same amount and try to start the engine again.
  • Page 101 Trouble Recovery ZMU05613 ZMU05615 Secure the electrical system plate by tightening the bolt(s), and fix the plate. ZMU05624 Remove the starter/flywheel cover after ZMU05616 removing the bolt(s). Prepare the engine for starting. For fur- ther information, see page 49. Be sure that the gear shift is in neutral and that the clip is attached to the engine shut-off switch.

  • Page 102: Treatment Of Submerged Motor

    EMU33502 Treatment of submerged motor If the outboard motor is submerged, immedi- ately take it to a Yamaha dealer. Otherwise ON START some corrosion may begin almost immedi- ately. NOTICE: Do not attempt to run the outboard motor until it has been com- pletely inspected.

  • Page 103: 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 104 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 105: 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 106: Index

    INDEX Accident reporting........3 Dismounting the outboard motor ..67 Alcohol and drugs ........2 Alert indicator........34 Alert system .......... 36 Electric shock.......... 1 Anode(s), inspecting and replacing ..85 Emergency equipment ......21 Anti-fouling paint ........20 Emergency starting engine (electric Approval label of emission control start model).........
  • Page 107 INDEX Overloading ..........2 Hot parts ..........1 Passengers ..........2 Passenger training ........4 Identification numbers record ....9 People in the water ......... 2 Idle speed, inspecting ......79 Periodic maintenance ......72 Impact damage ........91 Personal flotation devices (PFDs) ..2 Installation requirements.......
  • Page 108 INDEX Steering friction adjuster ....... 31 Stopping boat........56 Stopping engine........56 Stop switches........54 Storing outboard motor ......68 Submerged outboard motor....96 Throttle friction adjuster ......28 Throttle grip........... 28 Throttle indicator ........28 Tiller handle .......... 27 Tilting up and down.......
  • Page 109 — 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 110 Printed in Japan November 2015–1.4  1 ! Printed on recycled paper...

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