IGNITION SYSTEM TROUBLESHOOTING

[darat]

No spark at plug

*Faulty spark plug
*Poorly connected broken or shorted wire
- Between alternator and CDI unit
- Between CDI unit and ignition coil
- Between CDI unit and ignition switch
- Between ignition coil and spark plug
*Faulty ignition switch
*Faulty ignition coil
*Faulty CDI unit
*Faulty alternator
_____________________________________________________________
Engine starts but runs poorly

*Ignition primary circuit
-Faulty ignition coil
-Losse or bare wire or connector
-Poorly connected ignition switch
*Ignition secondary circuit
-Faulty ignition coil
-Faulty spark plug
-Faulty spark plug wire
-poorly insulated plug cap
* Improper ignition timing
-Faulty alternator
-Stator not installed properly
-Faulty CDI unit