PERIODIC MAINTENANCE AND MINOR REPAIR
Troubleshooting chart
Never check the fuel system while smoking or in the vicinity of an open flame.
1. Fuel
Check if there is fuel
in the fuel tank.
2. Compression
Use the electric starter.
3. Ignition
Remove spark
plugs and
check electrodes.
4. Battery
Use the electric starter.
EAU01297
EW000125
Enough fuel.
Go to compression check.
No fuel.
Supply fuel.
There is compression.
No compression.
Wipe clean with dry cloth and correct
Wet.
spark gap or replace spark plugs.
Dry.
Ask a Yamaha dealer to inspect.
Engine turns over
quickly.
Engine turns over
slowly.
6-35
Engine doesnÕt start, go to compression check.
Go to ignition check.
Ask a Yamaha dealer to
inspect.
Battery good.
Check connections or
recharge.
Open throttle half-way and start
the engine.
Engine doesnÕt start, go to battery
check.
Engine doesnÕt start, ask a Yamaha
dealer to inspect.