Yamaha 40V Owner's Manual

Summary of 40V

  • Page 1

    Q q q q read this manual carefully before operating this outboard motor. Owner’s manual 40v 50h 63d-28199-24-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

    Important manual information emu25105 to the owner thank you for choosing a yamaha outboard motor. This owner’s manual contains infor- mation needed for proper operation, mainte- nance and care. A thorough understanding of these simple instructions will help you ob- tain maximum enjoyment from your ...

  • Page 4: Table of Contents

    Table of contents safety information............................. 1 outboard motor safety .................... 1 propeller............................................ 1 rotating parts.................................... 1 hot parts ........................................... 1 electric shock ..........

  • Page 5: Table of Contents

    Table of contents top cowling lock lever(s) (turn type) ..................................... 27 alert indicator .................................. 27 instruments and indicators ............ 28 digital tachometer ......................... 28 tachometer ..................................... 28 trim m...

  • Page 6: Table of Contents

    Table of contents outboard motor ................................. 64 clamp screw mounting models ....... 64 storing outboard motor ................... 64 procedure ....................................... 65 lubrication (oil injection models)..... 66 cleaning the outboard motor .......... 66 checkin...

  • Page 7: Safety Information

    1 safety information emu33622 outboard motor safety observe these precautions at all times. Emu36500 propeller people can be injured or killed if they come in contact with the propeller. The propeller can keep moving even when the motor is in neutral, and sharp edges of the propeller can cut even wh...

  • Page 8: Safety Information

    Safety information 2 emu33820 gasoline exposure and spills take care not to spill gasoline. If gasoline spills, wipe it up immediately with dry rags. Dispose of rags properly. If any gasoline spills onto your skin, immedi- ately wash with soap and water. Change clothing if gasoline spills on it. If ...

  • Page 9: Safety Information

    Safety information 3 dling and lead to an accident, capsizing or swamping. Emu33771 avoid collisions scan constantly for people, objects, and other boats. Be alert for conditions that limit your visibility or block your vision of others. Operate defensively at safe speeds and keep a safe distance aw...

  • Page 10: General Information

    4 general information emu25171 identification numbers record emu25183 outboard motor serial number the outboard motor serial number is stamped on the label attached to the port side of the clamp bracket. Record your outboard motor serial number in the spaces provided to assist you in ordering spare ...

  • Page 11: General Information

    General information 5 emu25213 c-tick label engines affixed with this label conform to certain portion(s) of the australian radio communications act. 1. Ce marking location 1. C-tick label location 1 zmu04889 zmu06040 1 zmu06138 zmu01697.

  • Page 12: General Information

    General information 6 emu33520 read manuals and labels before operating or working on this motor: ● read this manual. ● 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 ...

  • Page 13: General Information

    General information 7 emu33912 contents of labels the above warning labels mean as follows. 1 warning ewm01691 emergency starting does not have start- in-gear protection. Ensure shift control is in neutral before starting engine. 2 warning ewm01681 ● keep hands, hair, and clothing away from rotating...

  • Page 14: General Information

    General information 8 emu33843 symbols the following symbols mean as follows. Notice/warning read owner’s manual hazard caused by continuous rotation electrical hazard remote control lever/gear shift lever operat- ing direction, dual direction engine start/ engine cranking zmu05696 zmu05664 zmu05665...

  • Page 15: Specifications

    9 specifications and requirements emu31480 specifications tip: “(al)” stated in the specification data below represents the numerical value for the alumi- num propeller installed. Likewise, “(sus)” represents the value for stainless steel propeller installed and “(pl)” for plastic propeller installe...

  • Page 16

    Specifications and requirements 10 50heto remote control 50hmho tiller 50hwhto tiller starting system: 40veto electric 40vwhto manual and electric 50heto electric 50hmho manual 50hwhto manual and electric starting carburetion system: 40veto prime start 40vwhto prime start 50heto prime start 50hmho c...

  • Page 17: Installation Requirements

    Specifications and requirements 11 emu33553 installation requirements emu33563 boat horsepower rating warning ewm01560 overpowering a boat can cause severe instability. Before installing the outboard motor(s), con- firm that the total horsepower of your mo- tor(s) does not exceed the boats maximum h...

  • Page 18: Propeller Selection

    Specifications and requirements 12 emu25730 without a rectifier or rectifier regulator notice ecm01090 a battery cannot be connected to models that do not have a rectifier or rectifier regulator. If you wish to use a battery with the models without a rectifier or rectifier regulator, in- stall an op...

  • Page 19: Start-In-Gear Protection

    Specifications and requirements 13 emu25770 start-in-gear protection yamaha outboard motors or yamaha-ap- proved remote control units are equipped with start-in-gear protection device(s). This feature permits the engine to be started only when it is in neutral. Always select neutral before starting ...

  • Page 20: Motor Disposal Requirements

    Specifications and requirements 14 emu36340 motor disposal requirements never illegally discard (dump) the motor yamaha recommends consulting the dealer about discarding the motor. Emu36351 emergency equipment keep the following items onboard in case there is trouble with the motor. ● a tool kit wit...

  • Page 21

    Specifications and requirements 15.

  • Page 22: Components

    16 components emu2579h components diagram tip: * may not be exactly as shown; also may not be included as standard equipment on all mod- els. 50hmho 1 2 3 4 5 6 21 7 8 9 10 11 12 13 14 22 23 zmu06162 15 16 17 18 19 20 trip time batt km/h knot mph km mile speed yamaha set mode 1. Manual starter handl...

  • Page 23: Components

    Components 17 40vwhto, 50hwhto 6 7 8 9 10 11 12 13 14 15 16 17 19 18 2 3 4 5 1 trip time batt km/h knot mph km mile speed yamaha set 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...

  • Page 24: Components

    Components 18 40veto, 50heto emu25802 fuel tank if your model was equipped with a portable fuel tank, its function is as follows. Warning ewm00020 the fuel tank supplied with this engine is its dedicated fuel reservoir and must not be used as a fuel storage container. Com- mercial users should confo...

  • Page 25: Components

    Components 19 emu25830 fuel joint this joint is used to connect the fuel line. Emu25841 fuel gauge this gauge is located on either the fuel tank cap or on the fuel joint base. It shows the ap- proximate amount of fuel remaining in the tank. Emu25850 fuel tank cap this cap seals the fuel tank. When r...

  • Page 26: Components

    Components 20 emu26201 neutral interlock trigger to shift out of neutral, first pull the neutral in- terlock trigger up. Emu26211 neutral throttle lever to open the throttle without shifting into ei- ther forward or reverse, put the remote con- trol lever in the neutral position and lift the neutral...

  • Page 27: Components

    Components 21 emu25941 throttle grip the throttle grip is on the tiller handle. Turn the grip counterclockwise to increase speed and clockwise to decrease speed. Emu25961 throttle indicator the fuel consumption curve on the throttle indicator shows the relative amount of fuel consumed for each throt...

  • Page 28: Components

    Components 22 when constant speed is desired, tighten the adjuster to maintain the desired throttle set- 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. The cord should be attached to a secure place on the operato...

  • Page 29: Components

    Components 23 emu26070 manual starter handle to start the engine, first gently pull the han- dle out until resistance is felt. From that posi- tion, then pull the handle straight out quickly to crank the engine. Emu26090 main switch the main switch controls the ignition system; its operation is desc...

  • Page 30: Components

    Components 24 tip: ● check the tiller handle for smooth move- ment when the lever is turned to the star- board side “b”. ● do not apply lubricants such as grease to the friction areas of the steering friction ad- juster. Emu26122 steering friction adjuster a friction device provides adjustable resis...

  • Page 31: Components

    Components 25 ing the switch “ ” (up) trims the outboard motor up, and then tilts it up. Pressing the switch “ ” (down) tilts the outboard motor down and trims it down. When the switch is released, the outboard motor will stop in its current position. For instructions on using the power trim and til...

  • Page 32: Components

    Components 26 emu30530 tilt lock mechanism the tilt lock mechanism is used to prevent the outboard motor from lifting out of the wa- ter when in reverse gear. To lock it, set the tilt lock lever in the lock po- sition. To release, push the tilt lock lever in the release position. Emu26341 tilt suppo...

  • Page 33: Components

    Components 27 port 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. Emu26372 top cowling lock lever(s) (turn type) to remove the engine top cowling, turn the lock lever(s) and lift off the cowling. When i...

  • Page 34: Instruments and Indicators

    28 instruments and indicators emu26493 digital tachometer the tachometer shows the engine speed and 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. Tip: the water separator and engine trouble-a...

  • Page 35: Instruments and Indicators

    Instruments and indicators 29 emu26551 oil level indicator (digital type) this indicator shows the engine oil level. If the oil level falls below the lower limit, the alert indicator will start to blink. For further in- formation, see page 34. Notice ecm00030 do not operate the engine without oil. S...

  • Page 36: Instruments and Indicators

    Instruments and indicators 30 emu26712 fuel gauge eight segments indicate the fuel level. When all segments are showing, the fuel tank is full. The fuel level reading can be inaccurate due to by the position of the sensor in the fuel tank and the attitude of the boat in the water. Operation with bow...

  • Page 37: Instruments and Indicators

    Instruments and indicators 31 5. Press the “ ” (mode) button until the desired minute is displayed. 6. Press the “ ” (set) button again to start the clock. The clock operates on battery power. Dis- connecting the battery will stop the clock. Reset the clock after connecting the battery. Emu36080 vol...

  • Page 38: Instruments and Indicators

    Instruments and indicators 32 indicators, see page 46. Notice ecm00030 do not operate the engine without oil. Se- rious engine damage will occur. Emu26591 analog speedometer this gauge shows the boat speed in km/h and mph. Emu26611 analog trim meter this gauge shows the trim angle of your out- board...

  • Page 39: Engine Control System

    33 engine control system emu26803 alert system notice ecm00091 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. Emu2681a overheat alert this engine has an overheat-alert device. If the engine temperature...

  • Page 40: Engine Control System

    Engine control system 34 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 to about...

  • Page 41: Engine Control System

    Engine control system 35 1. Oil filter zmu03366 1.

  • Page 42: Installation

    36 installation emu26902 installation the information presented in this section is intended as reference only. It is not possible to provide complete instructions for every possible boat and motor combination. Prop- er mounting depends in part on experience and the specific boat and motor combinatio...

  • Page 43: Installation

    Installation 37 notice ecm01630 ● during water testing, check the buoy- ancy of the boat, at rest, with its maxi- mum load. Check that the static water level on the exhaust housing is low enough to prevent water entry into the power head when water rises due to waves when the outboard is not run- ni...

  • Page 44: Installation

    Installation 38 your yamaha dealer. Warning! Avoid using bolts, nuts or washers other than those contained in the engine packaging. If used, they must be of at least the same quality of material and strength and must be tightened se- curely. After tightening, test run the engine and check their tigh...

  • Page 45: Operation

    39 operation emu36380 first-time operation emu27020 breaking in engine your new engine requires a period of break- in to allow mating surfaces of moving parts to wear in evenly. Correct break-in will help en- sure proper performance and longer engine life. Notice ecm00140 ● failure to follow the bre...

  • Page 46: Operation

    Operation 40 dent could occur. Notice ecm00120 do not start the engine out of water. Over- heating and serious engine damage can occur. Emu37141 fuel level be sure you have plenty of fuel for your trip. A good rule is to use 1/3 of your fuel to get to the destination, 1/3 to return, and to keep 1/ 3...

  • Page 47: Operation

    Operation 41 to the fully open position. Make sure that it turns smoothly and that it completely re- turns to the fully closed position. ● look for loose or damaged connections of the throttle and shift cables under the en- gine cowling. Remote control models: ● turn the steering wheel full-right an...

  • Page 48: Operation

    Operation 42 should supply oil normally. If no oil is flowing after 10 minutes of idling, consult your yamaha dealer. Notice ecm00130 be sure to take the above steps when op- erating the engine after a long period of storage. Otherwise engine seizure could occur. Emu36961 install cowling 1. Be sure ...

  • Page 49: Operation

    Operation 43 2. Operate each of the power trim and tilt switches to check that all switches work. 3. Tilt the outboard motor up and check that the trim and tilt rod is pushed out completely. 4. Check that the trim and tilt rod is free of corrosion or other flaws. 5. Tilt the outboard motor down. Che...

  • Page 50: Operation

    Operation 44 emu27301 filling oil for manual starter model warning ewm00530 do not add gasoline into the oil tank. Fire or explosion could result. This engine uses the yamaha oil injection system, which provides superior lubrication by ensuring the proper oil ratio for all operat- ing conditions. No...

  • Page 51: Operation

    Operation 45 3. Slowly pour the engine oil into the en- gine oil tank. 4. After filling, replace the all caps secure- ly. 1. Oil filler access cap 2. Oil tank filler cap zmu03370 zmu03371 2 1.

  • Page 52: Operation

    Operation 46 emu27321 oil level indicator operation the various functions of the oil level system are as follows: emu27342 manual start models electric start models oil level-alert indicator engine oil tank remarks off more than 200 cm 3 (0.21 us qt, 0.181 imp qt) no refilling necessary. On red 200 ...

  • Page 53: Operation

    Operation 47 emu27451 operating engine emu27464 feeding fuel (portable tank) warning ewm00420 ● before starting the engine, make sure that the boat is tightly moored and that you can steer clear of any obstructions. Be sure there are no swimmers in the water near you. ● when the air vent screw is lo...

  • Page 54: Operation

    Operation 48 3. Squeeze the primer pump, with the ar- row pointing up, until you feel it become firm. During engine operation place the tank horizontally, otherwise fuel cannot be drawn from the fuel tank. Emu27492 starting engine warning ewm01600 before starting the engine, make sure that the boat ...

  • Page 55: Operation

    Operation 49 3. Place the throttle grip in the “ ” (start) position. 4. Pull the manual starter handle slowly un- til you feel resistance. Then give a strong pull straight out to crank and start the engine. Repeat if necessary. 5. After the engine starts, slowly return the manual starter handle to i...

  • Page 56: Operation

    Operation 50 the engine from starting except when in neu- tral. 2. Attach the engine shut-off cord to a se- cure place on your clothing, or your arm or leg. Then install the clip on the other end of the cord into the engine shut-off switch. 3. Place the throttle grip in the “ ” (start) position. Aft...

  • Page 57: Operation

    Operation 51 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. ● avoid accidentally pulling the cord dur- ing normal ope...

  • Page 58: Operation

    Operation 52 warmed up. For further information, see page 52. ● if the engine is warm and fails to start, open the throttle slightly and try to start the engine again. If the engine still fails to start, see page 81. Emu36510 checks after starting engine emu36520 cooling water check for a steady flo...

  • Page 59: Operation

    Operation 53 to shift out of neutral 1. Pull the neutral interlock trigger up (if equipped). 2. Move the remote control lever / gear shift lever firmly and crisply forward (for forward gear) or backward (for reverse gear) [about 35° (a detent can felt) for re- mote control models]. Be sure to check ...

  • Page 60: Operation

    Operation 54 2. 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. Emu31742 stopping boat warning ewm01510 ● do not use the reverse function to slow down or stop the boat as it could cause you to lose control, be...

  • Page 61: Operation

    Operation 55 2. After stopping the engine, disconnect the fuel line if there is a fuel joint on the outboard motor. 3. Tighten the air vent screw on the fuel tank cap (if equipped). 4. Remove the key if the boat will be left unattended. Tip: the engine can also be stopped by pulling the cord and rem...

  • Page 62: Operation

    Operation 56 emu27872 adjusting trim angle for manual tilt models there are 4 or 5 holes provided in the clamp bracket to adjust the outboard motor trim an- gle. 1. Stop the engine. 2. Tilt the outboard motor up, and then re- move the trim rod from the clamp brack- et. 3. Reposition the rod in the d...

  • Page 63: Operation

    Operation 57 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 contro...

  • Page 64: Operation

    Operation 58 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 furthe...

  • Page 65: Operation

    Operation 59 emu32641 procedure for tilting up (manual tilt models) 1. Place the gear shift lever in neutral. 2. Place the tilt lock lever in the release po- sition. 3. Hold the rear of the top cowling with one hand, tilt the engine up, and turn the tilt support lever to the lock position and suppor...

  • Page 66: Operation

    Operation 60 3. 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. Otherwise the out- board motor could fall back down suddenly if oil in the power trim and tilt unit or in t...

  • Page 67: Operation

    Operation 61 2. Hold the rear of the top cowling with one hand, tilt the outboard motor up slightly and pull out the tilt support knob or re- turn the tilt support lever. 3. Slowly tilt the outboard motor down. 4. Place the tilt lock lever in the lock posi- tion. Emu33120 procedure for tilting down ...

  • Page 68: Operation

    Operation 62 emu28061 shallow water emu32851 power trim and tilt models the outboard motor can be tilted up partially to allow operation in shallow water. Notice ecm00260 do not tilt the outboard motor up so that the cooling water inlet on the lower unit is above the surface of the water when set- t...

  • Page 69: Operation

    Operation 63 3. To return the outboard motor to the nor- mal running position, press the power trim and tilt switch and slowly tilt the out- board motor down. Emu28194 cruising in other conditions cruising in salt water after operating in salt water, flush the cooling water passages with fresh water...

  • Page 70: Maintenance

    64 maintenance emu28225 transporting and storing outboard motor warning ewm00692 ● use care when transporting fuel tank, whether in a boat or car. ● do not fill fuel container to maximum capacity. Gasoline will expand consid- erably as it warms up and can build up pressure in the fuel container. Thi...

  • Page 71: Maintenance

    Maintenance 65 emu28303 procedure emu28334 flushing in a test tank notice ecm00300 do not run the engine without supplying it with cooling water. Either the engine water pump will be damaged or the en- gine will be damaged from overheating. Before starting the engine, be sure to supply water to the ...

  • Page 72: Maintenance

    Maintenance 66 emu28411 lubrication (oil injection models) 1. Install the spark plug(s) and torque to proper specification. For information on spark plug installation, see page 72. 2. Fill the oil tanks. This prevents the for- mation of condensation. For models with a remote oil tank, it may be nece...

  • Page 73: Maintenance

    Maintenance 67 control label may be performed by any marine engine repair establishment or in- dividual. All warranty repairs, however, including those to the emission control system, must be performed by an autho- rized yamaha marine dealership. Emu28511 replacement parts if replacement parts are n...

  • Page 74: Maintenance

    Maintenance 68 emu34445 maintenance chart 1 tip: ● refer to the sections in this chapter for explanations of each owner-specific action. ● the maintenance cycle on these charts assume usage of 100 hours per year and regular flushing of the cooling water passages. Maintenance frequency should be adju...

  • Page 75: Maintenance

    Maintenance 69 fuel line(high pres- sure) inspection or replace- ment as necessary fuel line(low pres- sure) inspection fuel line(low pres- sure) inspection or replace- ment as necessary fuel pump inspection or replace- ment as necessary fuel/oil leakage inspection gear oil replacement greasing poin...

  • Page 76: Maintenance

    Maintenance 70 emu34451 maintenance chart 2 main switch/stop switch/choke switch inspection or replace- ment as necessary wire harness connec- tions/wire coupler con- nections inspection or replace- ment as necessary (yamaha) fuel tank inspection and clean- ing as necessary item actions every 1000 h...

  • Page 77: Maintenance

    Maintenance 71 emu28941 greasing yamaha grease a (water resistant grease) yamaha grease d (corrosion resistant grease; for propeller shaft) 40vwhto, 50hwhto, 50hmho zmu03415.

  • Page 78: Maintenance

    Maintenance 72 40veto, 50heto emu28954 cleaning and adjusting spark plug the spark plug is an important engine com- ponent and is easy to inspect. The condition of the spark plug can indicate something about the condition of the engine. For exam- ple, if the center electrode porcelain is very white,...

  • Page 79: Maintenance

    Maintenance 73 should replace the spark plug with an- other of the correct type. Warning! When removing or installing a spark plug, be careful not to damage the in- sulator. A damaged insulator could allow external sparks, which could lead to explosion or fire. [ewm00561] 3. Be sure to use the speci...

  • Page 80: Maintenance

    Maintenance 74 flushing attachment or test tank can be used. A diagnostic tachometer should be used for this procedure. Results may vary depending on whether testing is conducted with the flushing attachment, in a test tank, or with the outboard motor in the water. 1. Start the engine and allow it t...

  • Page 81: Maintenance

    Maintenance 75 turn off the battery cut-off switch if your boat has one. Do not use your hand to hold the propeller when loosening or tightening the propeller nut. Put a wood block between the anti-cavi- tation plate and the propeller to prevent the propeller from turning. Checkpoints ● check each o...

  • Page 82: Maintenance

    Maintenance 76 shaft. 2. Install the spacer (if equipped), thrust washer, washer (if equipped), and pro- peller on the propeller shaft. Notice: be sure to install the thrust washer before installing the propeller, other- wise the lower case and propeller boss could be damaged. [ecm01880] 3. Install ...

  • Page 83: Maintenance

    Maintenance 77 has been drained. If the oil is milky, water is getting into the gear case which can cause gear damage. Con- sult a yamaha dealer for repair of the lower unit seals. [ecm00711] tip: for disposal of used oil, consult your yamaha dealer. 5. Put the outboard motor in a vertical po- sitio...

  • Page 84: Maintenance

    Maintenance 78 suction pipe) in a suitable cleaning sol- vent. Allow the filter to dry. 5. Replace the gasket with a new one. Re- install the fuel joint assembly and tighten the screws firmly. Emu29312 inspecting and replacing anode(s) yamaha outboard motors are protected from corrosion by sacrifici...

  • Page 85: Maintenance

    Maintenance 79 battery manufacturer’s instructions. Notice ecm01920 a poorly maintained battery will quickly deteriorate. 1. Check the electrolyte level. 2. Check the battery’s charge. If your boat is equipped with the digital speedome- ter, the voltmeter and low battery alert functions will help yo...

  • Page 86: Maintenance

    Maintenance 80 tions..

  • Page 87: Trouble Recovery

    81 trouble recovery emu29427 troubleshooting a problem in the fuel, compression, or igni- tion systems can cause poor starting, loss of power, or other problems. This section de- scribes basic checks and possible remedies, and covers all yamaha outboard motors. Therefore some items may not apply to ...

  • Page 88: Trouble Recovery

    Trouble recovery 82 q. Is fuel system obstructed? A. Check for pinched or kinked fuel line or other obstructions in fuel system. Q. Is fuel contaminated or stale? A. Fill tank with clean, fresh fuel. Q. Is fuel filter clogged? A. Clean or replace filter. Q. Have ignition parts failed? A. Have servic...

  • Page 89: Trouble Recovery

    Trouble recovery 83 q. Is load on boat improperly distributed? A. Distribute load to place boat on an even plane. Q. Is water pump or thermostat faulty? A. Have serviced by a yamaha dealer. Q. Is there excess water in fuel filter cup? A. Drain filter cup. Engine power loss. Q. Is propeller damaged? ...

  • Page 90: Trouble Recovery

    Trouble recovery 84 q. Is fuel joint connection incorrect? A. Connect correctly. Q. Is heat range of spark plug incorrect? A. Inspect spark plug and replace it with rec- ommended type. Q. Is high pressure fuel pump drive belt bro- ken? A. Have serviced by a yamaha dealer. Q. Is engine not responding...

  • Page 91: Trouble Recovery

    Trouble recovery 85 consult your yamaha dealer if the new fuse immediately blows again. Emu29524 power trim and tilt will not operate if the engine cannot be tilted up or down with the power trim and tilt because of a dis- charged battery or a failure with the power trim and tilt unit, the engine ca...

  • Page 92: Trouble Recovery

    Trouble recovery 86 wheel or other moving parts when the 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. You...

  • Page 93: Trouble Recovery

    Trouble recovery 87 tip: when the engine does not start with this pro- cedure, see page 87. Emu29671 engine fails to operate emu29706 cold engine fails to start if the engine fails to start when it is cold, use the following procedure. Warning ewm00410 when starting or operating the engine, do not t...

  • Page 94: Trouble Recovery

    Trouble recovery 88 6. Turn the main switch to “ ” (start). Notice: never turn the main switch to “ ” (start) while the engine is running. Do not keep the starter mo- tor turning for more than 5 seconds. If the starter motor is turned continu- ously for more than 5 seconds, the battery will be quick...

  • Page 96

    Yamaha motor co., ltd. Printed on recycled paper printed in japan april 2008–0.2 × 1 !.