Yamaha EF4500iSE - Inverter Generator Owner's Manual download pdf (Page 39)

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707-7XFc

705-073c

OFF

700-006

760-009

AE00512

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 knob to “ON”.

2 Clogged fuel line .... Clean fuel line.

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 “START” 1.

Poor spark

2 Spark plug dirty with carbon or wet .... Remove

carbon or wipe spark plug dry.

2 Faulty ignition system .... Consult dealer.

4. Compression

Insufficient

2 Worn out piston and cylinder .... Consult dealer.

2 Loose cylinder head nuts .... Tighten nuts proper-

ly.

2 Damaged gasket .... Replace gasket.

763-120a

7XF-28199-10_b 08.1.31 9:21 Page 34

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Yamaha EF4500iSE - Inverter Generator Owner's Manual Page 39