KYMCO Agility 125 Service Manual page 27

1
. GENERAL INFORMATION
NO SPARK AT SPARK PLUG
Inspection/Adjustment
Replace with a new
spark plug and inspect
again
Check spark plug cap
and high-tension wire
for looseness
Check CDI unit coupler
for looseness
Measure resistance
between CDI unit
coupler wire terminals
Check related parts
Check CDI unit with a
CDI unit tester
Check ignition coil with
a CDI unit tester
1-26
Symptom
Weak or no spark
Not loose
Good
Normal
Normal
Normal
Abnormal
Probable Cause
Good spark
Faulty old spark plug
Loose spark plug cap
Loose
Good Poorly connected coupler
Abnormal
Faulty ignition switch
Abnormal
Faulty pulser coil
Faulty ignition coil
Broken wire harness
Poorly connected coupler
Abnormal
Faulty CDI unit
Faulty ignition coil
AGILITY 125