Troubleshooting - DAELIM a.four Service Manual

TROUBLESHOOTING

Spark plug does not emit sparks.
ABNORMAL STATE
Maximum voltage is low.
No, or almost no peak voltage.
Spark plug peak voltage is normal but
spark plug does not emit sparks.
Peak voltage is low.
No, or almost no peak voltage.
Maximum voltage is low.
No, or almost no maximum voltage.
POSSIBLE CAUSES (START FROM 1 AND GO THROUGH LIST IN ORDER)
1. Using a tester with a low internal resistance.
2. Cranking speed is low.
- Battery is low or kick power is weak.
3. Influence of tester sampling time (normal state if measured a
number of times and shows over the set voltage).
4. Problem in ignition system wiring (disconnected, damaged).
5. Ignition coil is damaged.
6. Excite coil is damaged (measure peak voltage).
7. CDI unit is damaged (when no porblems in 1~6 and spark plug
does not emit sparks)
1. Adaptor is connected incorrectly.
2.Main switch damaged.
3. CDI unit coupler is connected incorrectly.
4. CDI unit ground wire disconnection.
5. Damage to excite coil (measure peak voltage).
6. Pulse generator is damaged (measure peak voltage).
7. Peak voltage adaptor is damaged.
8. CDI unit is damaged (when no problems in 1~7 and no sparks
emitted from spark plug).
1. Damage to spark plug or leakage of ignition coil secondary current.
2. Damaged ignition coil.
1. Using a tester with a low internal resistance.
2. Cranking speed is too low.
- Battery is insufficiently charged or kick power is weak.
3. Influence of tester sampling time (normal state if measured a
number of times and shows over the set voltage)
4. Excite coil is damaged (when 1~3 is okay).
1. Peak voltage adaptor is damaged.
2. Excite coil is damaged.
1. Using a tester with a low internal resistance.
2. Cranking speed is too low.
- Battery is insufficiently charged or kick power is weak.
3. Influence of tester sampling time (normal state if measured a
number of times and shows over the set voltage).
4. Pulse generator is damaged (when 1~3 is okay).
1. Maximum voltage adaptor is damaged.
2. Pulse generator is damaged.
IGNITION SYSTEM
14-3