Yamaha PW50Y - Manual (Page 57)

PERIODIC MAINTENANCE AND ADJUSTMENT
7-25
2
3
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9
EAU25972
Troubleshooting chart
Check the fuel level in
the fuel tank.
1. Fuel
There is
enough fuel.
There is
no fuel. Supply fuel.
Operate the kickstarter.
2. Compression
There is compression.
There is
no compression.
Check the ignition.
Have a Yamaha dealer
check the vehicle.
Remove the spark plug
and check the electrodes.
3. Ignition
Wet
Dry
Wipe off with a dry cloth and correct the
spark plug gap, or replace the spark plug.
Have a Yamaha dealer check the vehicle.
The engine does not start.
Have a Yamaha dealer check the vehicle.
Open the throttle halfway and operate
the kickstarter.
Check the compression.
The engine does not start.
Check the compression.