Troubleshooting Chart - Yamaha NEO'S YN50 Owner's Manual

PERIODIC MAINTENANCE AND MINOR REPAIR

Troubleshooting chart

s WARNING
s
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.
2. Compression
Operate the
electric starter.
6
3. Ignition
Remove the spark plug
and check the electrodes.
4. Battery
Operate the
electric starter.
There is
Check the compression.
enough fuel.
There is
Supply fuel.
no fuel.
There is compression.
Check the ignition.
Have a Yamaha dealer
There is no compression.
check the vehicle.
Wipe off with a dry cloth and correct the
Wet
spark plug gap, or replace the spark plug.
Have a Yamaha dealer check the vehicle.
Dry
The engine turns over
The battery is good.
quickly.
The engine turns over
Check fluid, recharge,
slowly.
check connections.
The engine does not start.
Check the compression.
Open the throttle halfway and
operate the electric starter.
The engine does not start.
Check the battery.
The engine does not start. Have a
Yamaha dealer check the vehicle.
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EAU25962
EWA10840