2007-2009 Kawasaki KFX50 service manual, Page 219Get this manual
15IGNITION SYSTEM TROUBLESHOOTING High voltage too low Weak battery or low engine speed Loose ignition system connection Faulty ignition unit Faulty ignition coil Faulty pulser coil Normal high voltage but no spark at plug Faulty spark plug Electric leakage in ignition secondary circuit Faulty ignition coil Good spark at plug but engine wont start Faulty ignition unit or incorrect ignition timing Faulty change gear control unit Improperly tightened A.Cgenerator flywheel No high voltage Faulty ignition switch Faulty ignition unit Poorly connected or broken ignition unit ground wire Dead battery or faulty regulatorrectifier Faulty ignition coil connector Faulty pulser coil