6
6-28
PERIODIC MAINTENANCE AND MINOR REPAIR
Troubleshooting charts
WARNING
Keep away from open flames and do not smoke while checking or operating on the fuel system.
1. Fuel
2. Compression
3. Ignition
4. Battery
Check the fuel level in
the fuel tank.
There is enough fuel.
There is compression.
Check the ignition.
Have a Yamaha dealer check the
vehicle.
The engine does not start. Check
the battery.
Open the throttle halfway and
operate the electric starter.
The battery is good.
There is no fuel.
Supply fuel.
Remove the spark plug
and check the electrodes.
Wet
Dry
Check the compression.
The engine does not start.
Check the compression.
Operate the electric
starter or the kickstarter.
There is no compression.
Have a Yamaha dealer
check the vehicle.
Operate the electric
starter.
The engine turn
over quickly.
The engine turn
over slowly.
Check lead connections, and
charge the battery if necessary.
The engine does not
start. Have a Yamaha
dealer check the vehicle.
Wipe off with a dry cloth and correct the
spark plug gap, or replace the spark plug.