KYMCO CK 1 - Page 22

1. GENERAL INFORMATION
CK 1
NO SPARK AT SPARK PLUG
Faulty old spark plug
Loose spark plug cap
Poorly connected coupler
Faulty ignition switch
Faulty exciter coil
Faulty pulser coil
Faulty ignition coil
Broken wire harness
Poorly connected coupler
Faulty CDI unit
Faulty ignition coil
Replace with a new
spark plug and inspect
again
Check CDI unit coupler
for looseness
Inspection/Adjustment
Symptom
Probable Cause
Normal
Abnormal
Normal
Abnormal
Normal
Abnormal
Abnormal
Measure resistance
between CDI unit
coupler wire terminals
Check related parts
Check ignition coil
with a CDI unit tester
Weak or no spark
Not loose
Good spark
Loose
Normal
Abnormal
Check spark plug cap
and ignition coil wire
for looseness
Check CDI unit with a
CDI unit tester
1-21