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705-037a
700-006
TROUBLESHOOTING
Engine won’t start
1. Fuel systems
No fuel supplied to combustion chamber.
2 No fuel in tank .... Supply fuel.
2 Fuel in tank .... Fuel cock lever to ON.
2 Clogged fuel line .... Clean fuel line.
2 Foreign matter in fuel cock .... Clean fuel cock.
2 Clogged carburetor .... Clean carburetor.
2. Engine oil system
Insufficient
2 Oil level is low .... Add engine oil.
3. Electrical systems
2 Engine switch to “7” (ON).
1 “7” (ON)
1
791-001d
Poor spark
2 Spark plug dirty with carbon or wet .... Remove
carbon or wipe spark plug dry.
2 Faulty ignition system .... Consult a Yamaha deal-
er.
Generator won’t produce power
2 Safety device (AC switch) to “3” (OFF) .... Turn
the AC switch (N.F.B.) to “I” (ON).
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