Daelim S4 50cc Service Manual - Mojo

IGNITION SYSTEMTROUBLE SHOOTINGSpark plug does not emit sparks.UNUSUAL CONDITIONPOSSIBLE CAUSES (START FROM 1 AND GO THROUGH LIST IN ORDER)IGNITION COIL PRIMARY VOLTAGE EXCITE COIL PULSE GENERATORLow peak voltage.No peak voltage.Peak voltage is normal, nut no sparkjump at plug.Low peak voltage.No peak voltage.1. Cranking speed is low.- Battery is low or kick power is weak.2. Poorly connected connectors or an open circuit in ignitionsystem3. Faulty ignition coil4. Faulty CDI unit(in case when above No. 1~4 are normal)1. Incorrect peak voltage adaptor connections.2. Faulty ignition switch.3. Loose or poorly connected CDI unit connector.4. Open circuit or poor connection in ground cord of the CDI unit.5. Faulty CDI unit(in case when above No.1~5 are normal)1. Faulty spark plug or leaking ignition coil secondary currentampere2. Faulty ignition coil.1. Cranking speed is too slow- Battery is undercharged(or operating force of the kick starteris weak)1. Cranking speed is too slow- Battery is undercharged(or operating force of the kick starteris weak)