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