PERIODIC MAINTENANCE AND MINOR REPAIR
EAU25901
Troubleshooting chart
EWA10840
WARNING
Keep away open flames and do not smoke while checking or working on the fuel system.
1. Fuel
Check the fuel level in the fuel tank.
There is enough fuel. |
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| Check the compression. |
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There is no fuel. |
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| Supply fuel. |
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| The engine does not start. | |
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| Check the compression. | |||
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2. Compression
Operate the electric starter. 
3. Ignition
Remove the spark plug and check the electrodes.
There is compression. |
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| Check the ignition. |
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There is no compression. |
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| Have a Yamaha dealer |
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| check the vehicle. |
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Wet | Wipe off with a dry cloth and correct the |
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spark plug gap, or replace the spark plug. |
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Dry 
Have a Yamaha dealer check the vehicle.
6
Open the throttle halfway and operate the electric starter.
The engine does not start.
Check the battery.
4. Battery
Operate the electric starter. 
The engine turns over quickly.
The engine turns over slowly.
The battery is good.
Check the battery lead connections, and charge the battery if necessary.
The engine does not start. Have a Yamaha dealer check the vehicle.