Ignition System - Suzuki GN125F Service Manual

IGNITION SYSTEM

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.
T r i g g e r c o i l
Generator
TROUBLINGSHOOTING
No spark at plug
Inspect the battery voltage
12V
Check the CDI unit couplers for
poor contact
Correct
Inspect the ignition circuit
Correct
Inspect the resistance of trigger coil
(Bl/Y and Bl/Y)
Correct
G
Ignitor
ELECTRICAL
O/Y
O/Y
W
I g n i t i o n c o i l
B/W
* Check the ignition switch is "
that the fuse is not blown before the diagnosis.
Less than 12V
Looseness
Incorrect
Incorrect
6-5
I g n i t i o n s w i t c h
Spark plug
" position. Inspect
Recharge the battery or
replace the battery
Poor contact of couplers
Faulty ignition switch
Broken wire harness or poor
contact of related circuit
connectors.
Faulty trigger coil
Faulty CDI unit
Faulty ignition coil
Faulty high-tension cord
R
Fuse
B a t t e r y