Operation Manual

PERIODIC MAINTENANCE AND MINOR REPAIR
6-30
6
EAU01297
Troubleshooting chart
EW000125
WARNING
@
Never check the fuel system while smoking or in the vicinity of an open flame.
@
Check if there is fuel
in the fuel tank.
1. Fuel
Enough fuel.
No fuel.
Go to compression check.
Supply fuel.
Engine doesn’t start, go to compression check.
Use the electric starter.
2. Compression
There is compression.
No compression.
Go to ignition check.
Ask a Yamaha dealer to
inspect.
Remove spark
plugs and
check electrodes.
3. Ignition
Wet.
Dry.
Wipe clean with dry cloth and correct
spark gap or replace spark plugs.
Ask a Yamaha dealer to inspect.
Engine doesn’t start, ask a Yamaha
dealer to inspect.
Engine doesn’t start, go to battery
check.
Open throttle half-way and start
the engine.
Use the electric starter.
4. Battery
Engine turns over
quickly.
Engine turns over
slowly.
Battery good.
Check connections or
recharge.
E_5el_Periodic.fm Page 30 Monday, May 1, 2000 9:44 AM