Troubleshooting - Yamaha EF1400 Owner's Manual

L-000
TROUBLESHOOTING
L-010
Engine won't start
1. Fuel systems
No fuel supplied to combustion chamber.
O No fuel in tank.Supply fuel
O Clogged fuel line.Clean fuel line
O Foreign matter in
fuel cock.Clean fuel cock
O Clogged carburetor.Clean carburetor
2. Electrical systems
Improper spark
O Spark plug dirty Remove carbon or
with carbon or wet . . . wipe spark plug dry
O Faulty CDI system.Consult dealer
3. Compression
Insufficient
O Worn out piston
and cylinder.Consult dealer
O Loose cylinder
head nuts.Tighten nuts properly
O Damaged gasket.Replace gasket
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