Yamaha 40V Owner's Manual
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Yamaha 40V Owner's Manual

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40V
50H
OWNER'S MANUAL
Read this manual carefully before operating this
outboard motor.
63D-28199-26-E0

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Summary of Contents for Yamaha 40V

  • Page 1 OWNER’S MANUAL Read this manual carefully before operating this outboard motor. 63D-28199-26-E0...
  • Page 2 EMU25052 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.

  • 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 Propeller selection ......12 Start-in-gear protection ....12 Outboard motor safety ..... 1 Engine oil requirements ....13 Propeller..........1 Fuel requirements ......13 Rotating parts........1 Gasoline .......... 13 Hot parts ........... 1 Muddy or acidic water ....
  • Page 5 Table of contents model ..........25 Engine shut-off cord (lanyard)..41 Cowling lock lever(s) (turn type)..25 Oil............ 41 Alert indicator ........26 Engine ..........41 Instruments and indicators .... 27 Operation after a long period of storage .......... 41 Indicators........
  • Page 6 Table of contents Shallow water......... 63 Engine fails to operate ....87 Power trim and tilt models....63 Cold engine fails to start....87 Cruising in other conditions.... 64 Treatment of submerged motor ..88 Maintenance........65 Transporting and storing outboard motor ..........

  • Page 7: Safety Information

    Safety information tor and the clamp bracket when the motor is EMU33622 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 EMU36501 area before operating the power trim and tilt Propeller...

  • Page 8: Gasoline Exposure And Spills

    Have an approved personal flotation device tions. Overloading or 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...

  • Page 9: Avoid Collisions

    Safety information swamping. EMU33880 Passenger training EMU33772 Avoid collisions Make sure at least one other passenger is Scan constantly for people, objects, and oth- trained to operate the boat in the event of an er boats. Be alert for conditions that limit your emergency.

  • Page 10: 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...

  • Page 11: C-Tick Label

    General information ZMU01697 ZMU04889 1. CE marking location ZMU06040 EMU25213 C-Tick label Engines affixed with this label conform to certain portion(s) of the Australian Radio Communications Act. ZMU06138 1. C-Tick label location...

  • Page 12: 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. 40V, 50H ZMU06161...
  • Page 13 General information ZMU05670 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 ● WARNING device (PFD). Emergency starting does not have start- Attach engine shut-off cord (lanyard) to ●...
  • Page 14 General information Electrical hazard EMU33843 Symbols The following symbols mean as follows. Notice/Warning ZMU05666 Remote control lever/gear shift lever operat- ing direction, dual direction ZMU05696 Read Owner’s Manual ZMU05667 Engine start/ Engine cranking ZMU05664 Hazard caused by continuous rotation ZMU05668 ZMU05665...

  • Page 15: Specifications And Requirements

    Specifications and requirements 50HWHTO 93.0 kg (205 lb) EMU31480 Specifications Performance: TIP: Full throttle operating range: “(AL)” stated in the specification data below 4500–5500 r/min Maximum output: represents the numerical value for the alumi- 40VETO 29.4 kW@5000 r/min num propeller installed. (40 HP@5000 r/min) Likewise, “(SUS)”...

  • Page 16: Installation Requirements

    Specifications and requirements 40VETO Electric starter Propeller mark: 40VWHTO Manual starter and Elec- tric starter Fuel and oil: 50HETO Electric starter Recommended fuel: 50HMHO Manual starter Regular unleaded gasoline 50HWHTO Manual starter and Elec- Fuel tank capacity: tric starter 24 L (6.34 US gal, 5.28 Imp.gal) Starting carburetion system: Recommended engine oil: 40VETO Prime start...

  • Page 17: Mounting Motor

    Yamaha dealer. multiple engine configurations or for an ac- The remote control unit must be equipped cessory battery, consult your Yamaha dealer with a start-in-gear protection device(s). This about battery selection and correct wiring. device prevents the engine from starting un-...

  • Page 18: Propeller Selection

    1. Propeller diameter in inches appropriate. 2. Propeller pitch in inches Your Yamaha dealer can help you select the 3. Type of propeller (propeller mark) right propeller for your boating needs. Select EMU25770...

  • Page 19: Engine Oil Requirements

    Specifications and requirements engine starting and running problems. EMU25651 Engine oil requirements Yamaha does not recommend gasohol con- taining methanol because it can cause fuel Recommended engine oil: system damage or engine performance YAMALUBE 2-stroke outboard motor problems. EMU36880 Muddy or acidic water...

  • Page 20: Emergency Equipment

    Spare parts, such as an extra set of spark ● EMU25332 Manufactured date label plugs. This label is attached to the clamp bracket or Consult your Yamaha dealer for details. the swivel bracket. EMU25221 Emission control information EMU25310 U.S. insular areas Engines affixed with the label pictured below conform to U.S.

  • Page 21: Components

    Components EMU2579V Components diagram TIP: * May not be exactly as shown; also may not be included as standard equipment on all mod- els (order from dealer). 50HMHO YAMAHA SPEED Km/h knot mile TRIP TIME BATT mode ZMU06162 1. Manual starter handle 16.
  • Page 22 Components 40VWHTO, 50HWHTO YAMAHA SPEED Km/h knot mile TRIP TIME BATT mode ZMU04997 1. Manual starter handle 2. Tiller handle 3. Clamp bracket 4. Anode 5. Cooling water inlet 6. Propeller 7. Trim tab (anode) 8. Anti-cavitation plate 9. Anode 10.

  • Page 23: Fuel Tank

    Components 40VETO, 50HETO YAMAHA SPEED Km/h knot mile TRIP TIME BATT mode ZMU06163 EMU25802 1. Oil tank filler cap Fuel tank 2. Battery cable If your model was equipped with a portable 3. Anode fuel tank, its function is as follows.

  • Page 24: Fuel Joint

    Components ZMU02284 1. Fuel joint 1. Power trim and tilt switch 2. Fuel gauge 2. Remote control lever 3. Fuel tank cap 3. Neutral interlock trigger 4. Air vent screw 4. Neutral throttle lever 5. Main switch EMU25830 6. Engine shut-off switch Fuel joint 7.

  • Page 25: Neutral Interlock Trigger

    Components when the neutral throttle lever is in the closed 6. Throttle position. 7. Fully open EMU25912 Tiller handle EMU26201 Neutral interlock trigger To change direction, move the tiller handle to To shift out of neutral, first pull the neutral in- the left or right as necessary.

  • Page 26: Throttle Indicator

    Components or throttle grip, which could result in an accident. [EWM00032] EMU25961 Throttle indicator ZMU03095 The fuel consumption curve on the throttle indicator shows the relative amount of fuel consumed for each throttle position. Choose the setting that offers the best performance and fuel economy for the desired operation.

  • Page 27: Engine Stop Button

    Components tangled, preventing it from functioning. Avoid accidentally pulling the cord dur- 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.

  • Page 28: Steering Friction Adjuster

    Components its operation is described below. To increase resistance, turn the lever to the ” (off) “ port side “A”. ● With the main switch in the “ ” (off) posi- To decrease resistance, turn the lever to the tion, the electrical circuits are off, and the key starboard side “B”.

  • Page 29: Power Trim And Tilt Switch On Remote Control Or Tiller Handle

    Components ZMU02908 To increase resistance, turn the adjuster clockwise. To decrease resistance, turn the adjuster counterclockwise. EWM00040 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 30: Trim Tab With Anode

    Components operator, increasing the risk of collision with another boat or an obstacle. ZMU03097 DOWN 1. Trim tab ZMU03096 2. Bolt EMU26244 Trim tab with anode Bolt tightening torque: 18.0 Nm (1.8 kgf-m, 13 ft-lb) EWM00840 WARNING EMU26262 An improperly adjusted trim tab could Trim rod (tilt pin) cause difficult steering.

  • Page 31: Tilt Support Lever For Power Trim And Tilt Model

    Components EMU30201 Tilt support lever for manual tilt model To keep the outboard motor in the tilted up position, lock the tilt support lever to the clamp bracket. ZMU03764 1. Tilt lock lever To lock it, set the tilt lock lever in the lock po- sition.

  • Page 32: Alert Indicator

    Components ZMU02862 1. Cowling lock lever(s) EMU26303 Alert indicator If the engine develops a condition which is cause for alert, the indicator lights up. For details on how to read the alert indicator, see page 33. ZMU03361 1. Alert indicator...

  • Page 33: Instruments And Indicators

    Instruments and indicators EMU36014 Indicators EMU36033 Overheat-alert indicator If the engine temperature rises too high, this indicator will light up. For further information on reading the indicator, see page 33. ECM00052 NOTICE Do not continue to run the engine if the ZMU03361 overheat-alert indicator is on.

  • Page 34: Tachometer

    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.

  • Page 35: Overheat-Alert Indicator

    Instruments and indicators ZMU01867 1. Speedometer 1. Oil level indicator 2. Fuel gauge 3. Trip meter/clock/voltmeter EMU26583 Overheat-alert indicator 4. Alert indicator(s) If the engine temperature rises too high, the All segments of the display will light momen- alert indicator will start to blink. For further in- tarily after the main switch is turned on and formation on reading the indicator, see page will return to normal thereafter.

  • Page 36: Trip Meter / Clock / Voltmeter

    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 minute display will begin blinking.

  • Page 37: Fuel Level-Alert Indicator

    EMU26541 has activated. For charging the battery, con- Oil level indicators (three indicators) sult your Yamaha dealer. The indicators on the gauge show the status of the oil level. For details on how to read the indicators, see page 46.

  • Page 38: Analog Speedometer

    This gauge can be set to count the amount of time elapsed either when the main switch is on or only when the engine is running. For in- structions on how to select the counting mode, consult your Yamaha dealer. ZMU04647 EMU26611 Analog trim meter This gauge shows the trim angle of your out- board motor.

  • Page 39: 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 located and corrected. EMU2681C Overheat alert ZMU01757 This engine has an overheat-alert device. If The buzzer will sound (if equipped on the ●...

  • Page 40: Oil Level Alert And Oil Filter Clogging Alert

    Engine control system EMU26848 Oil level alert and oil filter clogging alert Oil injection models This engine has an oil level alert system. If the oil level falls below the lower limit, the alert system will activate. Activation of alert device Engine speed will automatically decrease ●...
  • Page 41 Engine control system ZMU06661 1. Oil filter ZMU06662 1. Oil filter...

  • Page 42: Installation

    Test runs at differ- centerline (keel line) of the boat. ent heights can help determine the optimum mounting height. Consult your Yamaha deal- er or boat manufacturer for further informa- tion on determining the proper mounting...

  • Page 43: Clamping The Outboard Motor

    (if packed). For details, consult tightness during operation of the out- your Yamaha dealer. WARNING! Avoid board motor because they could be- using bolts, nuts or washers other come loose due to engine vibration.
  • Page 44 Installation least the same quality of material and strength and must be tightened se- curely. After tightening, test run the engine and check their tightness. [EWM00651] ZMU03185 1. Bolts...

  • Page 45: Operation

    5 minutes at a time. After the first 10 hours: Operate the engine normally. Use only straight gasoline in the fuel tank. The Yamaha oil injection system provides proper lubrication for normal operation. EMU36400 Getting to know your boat : Gasoline Different boats handle differently.

  • Page 46: Fuel Level

    To remove significant amount of debris is found, the fuel the top cowling, release the cowling lock le- tank should be checked and cleaned by a ver and lift off the top cowling. Yamaha dealer. ZMU06084 ZMU06150 EMU36442 Fuel system...

  • Page 47: Engine Shut-Off Cord (Lanyard)

    Operation Remote control models: Turn the steering wheel full-right and full- ● left. Make sure operation is smooth and unrestricted throughout the whole range with no binding or excessive free play. Operate the throttle levers several times to ● make sure there is no hesitation in their travel.

  • Page 48: Install Top Cowling

    Operation should supply oil normally. If no oil is flowing after 10 minutes of idling, consult your Yamaha dealer. ZMU06109 After installing, check the fitting of the top cowling by pushing it with both hands. If the ZMU03367 top cowling is loose, have it repaired by your Yamaha dealer.

  • Page 49: Battery

    Operation Gasoline is poisonous and can cause ● injury or death. Handle gasoline with care. Never siphon gasoline by mouth. If you should swallow some gasoline or inhale a lot of gasoline vapor, or get some gasoline in your eyes, see your doctor immediately.

  • Page 50: Filling Oil For Manual Starter Model

    EWM00530 WARNING or explosion could result. Do not add gasoline into the oil tank. Fire This engine uses the Yamaha oil injection or explosion could result. system, which provides superior lubrication by ensuring the proper oil ratio for all operat- This engine uses the Yamaha oil injection ing conditions.
  • Page 51 Operation ments, see page 46. To fill the engine oil tank, proceed as follows: Engine oil tank capacity: 1.5 L (1.59 US qt, 1.32 Imp.qt) Turn the oil filler access cap on the top cowling counterclockwise and open it. ZMU03371 1.

  • Page 52: Oil Level Indicator Operation

    Operation EMU27321 Oil level indicator operation The various functions of the oil level system are as follows: EMU27342 Manual start models Oil level-alert indicator Engine oil tank Remarks more than 200 cm No refilling necessary. (0.21 US qt, 0.181 Imp qt) Buzzer sounds in ●...

  • Page 53: Operating Engine

    Operation Oil level-alert Oil level-alert indicator indicator (analog Engine oil tank Remarks (digital tachometer/b tachometer) ottom cowling) Buzzer sounds in ● remote control box and engine speed is 200 cm (0.21 limited to about 2000 US qt, 0.18 r/min to help con- Imp qt) or less serve oil.

  • Page 54: Starting Engine

    Operation Be sure there are no swimmers in the wa- ter near you. EMU27508 Manual start models (tiller control) EWM01840 WARNING Failure to attached engine shut-off cord ● could result in a runaway boat if opera- tor is ejected. Attach the engine shut- ZMU02024 off cord to a secure place on your cloth- ing, or your arm or leg while operating.
  • Page 55 Operation end of the cord into the engine shut-off (start) position while the engine is running, switch. the engine will run poorly or stall. Pull the manual starter handle slowly un- til you feel resistance. Then give a strong pull straight out to crank and start the engine.
  • Page 56 Operation amount and try to start the engine again. If switch. the engine still fails to start, see page 81. EMU27545 Starting engine EWM01840 WARNING Failure to attached engine shut-off cord ● could result in a runaway boat if opera- tor is ejected.
  • Page 57 Operation TIP: TIP: When the engine is cold, it needs to be The start-in-gear protection device prevents ● warmed up. For further information, see the engine from starting except when in neu- page 54. tral. If the engine is warm and fails to start, Attach the engine shut-off cord to a se- ●...
  • Page 58 Operation off cord to a secure place on your cloth- ing, or your arm or leg while operating. Do not attach the cord to clothing that could tear loose. Do not route the cord where it could become entangled, pre- venting it from functioning.

  • Page 59: Checks After Starting Engine

    Immediately after the engine starts, re- case or the cooling water pilot hole is lease the main switch and allow it to re- blocked. Consult your Yamaha dealer if ” (on). NOTICE: Never turn turn to “ the problem cannot be located and cor- the main switch to “...

  • Page 60: Warming Up Engine

    Operation gear. Until the engine is warm, the idle EMU27670 Warming up engine speed may be higher than normal. High idle speed can prevent you from shifting EMU27683 Choke start models back to neutral. If this occurs, stop the After starting the engine, allow it to idle for 3 engine, shift to neutral, then restart the minutes to warm up.

  • Page 61: Stopping Boat

    Operation After the engine is at idle speed in gear move the remote control lever / gear shift lever firmly and crisply into the neu- tral position. To shift from in gear (forward/reverse) to neutral Close the throttle so that the engine slows to idle speed.

  • Page 62: Stopping Engine

    Operation pact the steering wheel or other parts of the boat. This could increase the risk of serious injury. It could also damage the shift mechanism. Do not shift into reverse while traveling ● at planing speeds. Loss of control, boat swamping, or damage to the boat could occur.

  • Page 63: Trimming Outboard Motor

    Operation ZMU02301 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 (Power Trim And Tilt)

    Operation board motor when adjusting the trim angle. Body parts can be crushed be- tween the motor and the clamp bracket when the motor is trimmed or tilted. Use caution when trying a trim position ● for the first time. Increase speed gradu- ally and watch for any signs of instabil- ity or control problems.

  • Page 65: Adjusting Boat Trim

    Operation 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. Excessive trim-out can also cause the propeller to ventilate, which reduces per- formance further, and the boat may “por- DOWN...

  • Page 66: Tilting Up And Down

    Operation motor trim angle may have little effect on the trim of the boat when operating. EMU27935 Tilting up and down If the engine will be stopped for some time or if the boat is moored in shallows, the out- board motor should be tilted up to protect the propeller and lower casing from damage by collision with obstructions, and also to re-...

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

    Operation ZMU01935 ZMU03358 EMU32724 Procedure for tilting up (power trim and tilt models) Place the remote control lever / gear shift lever in neutral. ZMU04993 Pull the tilt support lever toward you to support the engine. WARNING! After tilting the outboard motor, be sure to support it with the tilt support knob or tilt support lever.

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

    Operation tor could shake loose from the tilt Hold the rear of the top cowling with one support and fall. If the motor cannot hand, tilt the outboard motor up slightly be trailered in the normal running po- and pull out the tilt support knob or re- sition, use an additional support de- turn the tilt support lever.

  • Page 69: Shallow Water

    Operation ZMU02569 Push the power trim and tilt switch “ ” EMU28061 Shallow water (down) to lower the outboard motor to the desired position. EMU32851 Power trim and tilt models The outboard motor can be tilted up partially to allow operation in shallow water. ECM00260 NOTICE Do not tilt the outboard motor up so that...

  • Page 70: 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 13) 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 71: Maintenance

    The deteriorated fuel could Storing outboard motor clog the fuel line causing engine start dif- When storing your Yamaha outboard motor ficulty or malfunction. for prolonged periods of time (2 months or longer), several important procedures must When storing or transporting the outboard be performed to prevent excessive damage.

  • Page 72: Procedure

    Maintenance serviced by an authorized Yamaha dealer prior to storage. However, you, the owner, with a minimum of tools, can perform the fol- lowing procedures. ECM01411 NOTICE Do not place the outboard motor on its ● side before the cooling water has...

  • Page 73: Lubrication (Oil Injection Models)

    Seal replacement should be per- have a Yamaha dealer or other qualified formed by an authorized Yamaha dealer mechanic do the work. prior to use.

  • Page 74: Replacement Parts

    Yamaha marine dealership. 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 passengers.

  • Page 75: Maintenance Chart 1

    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 20 hours Item...
  • Page 76 Maintenance Initial Every 20 hours Item Actions hours (1 hours (3 hours (5 months) year) years) years) Fuel line (High pres- Inspection or replace- sure) ment as necessary Fuel line (Low pres- Inspection sure) Fuel line (Low pres- Inspection or replace- sure) ment as necessary Inspection or replace-...

  • Page 77: 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 78: Greasing

    Maintenance EMU28943 Greasing Yamaha grease A (water resistant grease) Yamaha grease D (corrosion resistant grease; for propeller shaft) 40VWHTO, 50HWHTO, 50HMHO ZMU03415...

  • Page 79: Cleaning And Adjusting Spark Plug

    When removing or installing a spark Instead, take the outboard motor to a plug, be careful not to damage the in- Yamaha dealer. You should periodically re- sulator. A damaged insulator could move and inspect the spark plug because...

  • Page 80: Checking Fuel Filter

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

  • Page 81: Checking Water In Engine Oil Tank

    For idle speed specifications, see secured. page 9. If you have difficulty verifying the idle speed, or the idle speed requires ad- justment, consult a Yamaha dealer or other qualified mechanic. EMU29061 Checking water in engine oil tank A translucent water drain hose is connected from the bottom of the oil tank to the filler neck.

  • Page 82: Removing Propeller

    Otherwise, the propeller could come off during oper- ation and be lost. Check the propeller shaft oil seal for dam- Apply Yamaha marine grease or a corro- ● age. sion resistant grease to the propeller shaft.

  • Page 83: Changing Gear Oil

    Never get under the lower unit while it case may be damaged. Have a ● is tilted, even when the tilt support lever Yamaha dealer check and repair the or knob is locked. Severe injury could outboard motor. [ECM00713] occur if the outboard motor accidental- TIP: ly falls.

  • Page 84: Cleaning Fuel Tank

    Inspecting and replacing anode(s) If you have any question about properly ● doing this procedure, consult your Yamaha outboard motors are protected from Yamaha dealer. corrosion by sacrificial anodes. Inspect the Keep away from sparks, cigarettes, external anodes periodically. Remove scales ●...

  • Page 85: Checking Battery (For Electric Start Models)

    Maintenance Yamaha dealer for replacement of external ment of internal anodes attached to the pow- anodes. er unit. ECM00720 EMU29323 Checking battery (for electric start NOTICE models) Do not paint anodes, as this would render them ineffective. EWM01902 WARNING Battery electrolyte is poisonous and caustic, and batteries generate explosive hydrogen gas.

  • Page 86: Connecting The Battery

    Maintenance ing, consult your Yamaha dealer. The electrical contacts of the battery and Check the battery connections. They cables must be clean and properly con- should be clean, secure, and covered by nected, or the battery will not start the an insulating cover.

  • Page 87: 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 88 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 89 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 90: Temporary Action In Emergency

    EWM00631 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 EMU29433 flow.

  • Page 91: Power Trim And Tilt Will Not Operate

    3. Spare fuse (20 A) gear protection device does not oper- ate. Make sure the remote control lever Consult your Yamaha dealer if the new fuse is in neutral. Otherwise the boat could immediately blows again. unexpectedly start to move, which...

  • Page 92: Emergency Starting Engine

    Trouble Recovery wheel or other moving parts when the equipped. engine is running. Do not install the starter mechanism or top cowling after the engine is running. Do not touch the ignition coil, spark ● plug wire, spark plug cap, or other elec- trical components when starting or op- erating the motor.

  • Page 93: Engine Fails To Operate

    Trouble Recovery flywheel or other moving parts when the engine is running. Adjust the trim angle so that the drive shaft is at right angles to the water sur- face or is trimmed in. On models equipped with an emergency starter valve, open it.

  • Page 94: Treatment Of Submerged Motor

    If the outboard motor is submerged, immedi- thus making it impossible to start the ately take it to a Yamaha dealer. Otherwise engine. The starter can also be dam- some corrosion may begin almost immedi- aged.
  • Page 96 YAMAHA MOTOR CO., LTD. Printed in Japan April 2010–0.2  1 ! Printed on recycled paper...

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