15. IGNITION SYSTEM MOVIE SYSTEM TROUBLESHOOTING High voltage too low No high voltage · Weak battery or low engine speed · Faulty ignition switch · Loose ignition system connection · Faulty CDI unit · Faulty CDI unit · Poorly connected or broken CDI ground wire · Faulty ignition coil ·Dead battery or faulty regulator/rectifier · Faulty pulser coil · Faulty ignition coil connector Normal high voltage but no spark at plug · Faulty pulser coil · Faulty spark plug · Electric leakage in ignition secondary circuit · Faulty ignition coil Good spark at plug but engine won`t start · Faulty CDI unit or incorrect ignition timing · Improperly tightened A.C. generator flywheel 15-3