DAELIM S2 125 Service Manual page 163

IGNITION SYSTEM
TROUBLESHOOTING
No spark at plug.
UNUSUAL CONDITION
Low peak voltage.
No peak voltage.
Peak voltage is normal, but no spark
jumps at plug.
Low peak voltage.
No peak voltage.
15-2
PROBABLE CAUSE (CHECK IN NUMERICAL ORDER)
1. The multitester impedance is too low.
2. Cranking speed is too slow.
- Battery is undercharged (or operating force of the kick starter is
weak).
3. The sample timing of the tester and measured pulse were not
synchronized. (System is normal if measured voltage is over the
standard voltage at least once.)
4. Poorly connected connectors or an open circuit in ignition system.
5. Faulty ignition system control circuit such as side stand switch.
6. Faulty ignition coil.
7. Faulty CDI unit (in case when above No. 1~6 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 ignition system control circuit such as side stand switch.
6. Faulty peak voltage adaptor.
7. Faulty CDI unit (in case when above No. 1~6 are normal).
1. Faulty spark plug or leaking ignition coil secondary current ampere.
2. Faulty ignition coil.
1. The multitester impedance is too low.
2. Cranking speed is too slow.
- Battery is undercharged (or operating force of the kick starter is
weak).
3. The sample timing of the tester and measured pulse were not
synchronized.(System is normal if measured voltage is over the
standard voltage at least once.)
4. Faulty pulse generator (in case when above No. 1~3 are normal).
1. Faulty peak voltage adaptor.
2. Faulty pulse generator.