PERIODIC MAINTENANCE AND MINOR REPAIR
EAU01397
Troubleshooting chart
EW000125
w
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. 
Check the compression.
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| The engine does not start. |
There is no fuel. |
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| Supply fuel. | |||
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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.
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There is compression. |
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| Check the ignition. |
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There is no compression. 
Have a Yamaha dealer check the vehicle.
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| Open the throttle halfway and | |
Wet |
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| Wipe off with a dry cloth and correct the |
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| operate the electric starter. | ||||
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| spark plug gap, or replace the spark plug. |
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| The engine does not start. |
Dry |
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| Have a Yamaha dealer check the vehicle. |
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| Check the battery. |
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4. Battery |
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| The engine turns over |
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| The battery is good. |
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| quickly. |
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| Operate the electric starter. |
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| Check the battery lead |
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| The engine turns over |
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| connections, and charge the |
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| slowly. |
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| battery if necessary. |
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The engine does not start. Have a Yamaha dealer check the vehicle.