Trouble Shooting

Problem	Possible Cause	Correction
Won't start or run	Foreign debris in muffler No Gas Spark plug not connected No Oil	Check and clean muffler exhaust Add gas to tank. Turn fuel valve on. Connect spark plug wire Check and add oil

Alternator Excitation Failure	Low speed Faulty capacitor Faulty Windings	Check rpm and set at nominal value Check and replace Check windings resistance

High no-load voltage	Speed to High Capacitor with high capacity	Check and adjust rpm Check and replace

Low no-load voltage	Speed to low Faulty rotary diodes Breakdown in windings Capacitor with low capacity	Check and adjust rpm Check and replace Check winding resistance Check and replace

Proper no-load but low loaded voltage	Low loaded speed Load too big Capacitor with low capacity	Check and replace Check winding resistance Check and replace

Proper no-load but high loaded voltage	High speed in load condition	Check and regulate rpm

Unstable voltage	Loose contacts Change in engine speed	Check connections Check and regulate rpm

Tank Expansion		Fuel cap not venting