Owner`s manual

8-61
EBU08061
Troubleshooting charts
Starting problems or
poor engine performance
2. Compression
Use the electric
starter to see if there
is compression.
3. Ignition
Remove the spark plug
and check the electrodes.
Wet
Wipe clean with
dry cloth.
Dry
Attach spark plug cap
and ground to chassis.
Use the electric
starter.
Spark weak.
Spark good. Ignition system normal.
No spark.
Ask a Yamaha dealer to inspect.
Adjust the spark plug gap
or replace the spark plug.
There is compresson. Compression normal.
Ask a Yamaha dealer to inspect.No compression.
4. Battery
Use the electric
starter.
Engine turns over
quickly.
Battery is good.
Check the connections.
Engine turns over
slowly.
Check the fuel
flow.
1. Fuel
Check if there is
fuel in the fuel
tank.
There is fuel.
Turn the fuel
cock to “OFF”.
Remove the
fuel hose from
the fuel cock.
Turn the fuel cock
lever to “ON”.
No fuel. Fuel cock clogged.
Some fuel.
Turn the fuel cock
lever to “RES”.
Restart the engine.
No fuel. Supply fuel.
Clean the fuel
cock.
5TG-9-12-3 5/13/05 4:13 PM Page 8-61