Troubleshooting Charts - Yamaha FZ1 Owner's Manual

PERIODIC MAINTENANCE AND MINOR REPAIR

Troubleshooting charts

Starting problems or poor engine performance
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.
2. Compression
6
Operate the electric starter.
3. Ignition
Remove the spark plugs
and check the electrodes.
4. Battery
Operate the electric starter.
There is enough fuel. Check the compression.
There is no fuel.
Supply 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 gaps, or replace the spark plugs.
Have a Yamaha dealer check the vehicle.
Dry
The engine turns over
The battery is good.
quickly.
The engine turns over Check the battery lead connections,
slowly. and charge the battery if necessary.
6-41
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.
EAU25911
EWA10840