Suzuki GN125F - Ignition System Service

ELECTRICAL
6-5
IGNITION SYSTEM
Trigger coil
Ignition switch
Spark plug
Battery
Ignition coil
Generator
R
O/Y
O/Y
B/W
W
G
Fuse
DESCRIPTION
in the capacitor discharged ignition system, the electrical energy generated by the magneto charges the
capacitor. This energy is released in a single surge at the specified ignition timing point, and current flows
through the primary side of the ignition coil. A high voltage current is induced in the secondary windings of the
ignition coil resulting in strong spark between the spark plug cap.
TROUBLINGSHOOTING
No spark at plug
Inspect the battery voltage
Recharge the battery or
replace the battery
Less than 12V
*
Check the ignition switch is ” ” position. Inspect
that the fuse is not blown before the diagnosis.
12V
Poor contact of couplers
Check the CDI unit couplers for
poor contact
Looseness
Correct
Faulty ignition switch
Broken wire harness or poor
contact of related circuit
connectors.
Inspect the ignition circuit
Faulty trigger coil
Inspect the resistance of trigger coil
(Bl/Y and Bl/Y)
Correct
Incorrect
Correct
Faulty CDI unit
Faulty ignition coil
Faulty high-tension cord
Ignitor
Incorrect