– 55 –
705-037a
700-006
791-001d
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
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).
7P5-F8199-14.indd 55
2021/06/23 11:22:20