Ignition System; Troubleshooting - Suzuki FL125S Service Manual

6-20 ELECTRICAL SYSTEM

IGNITION SYSTEM

R
Main fuse
Regulator/
Rectifier
Battery
Y/W
B/W B/W
Y/W
Generator

TROUBLESHOOTING

NOTE:
* Make sure that the fuse is not blown and the battery is fully-charged before diagnosing.
No spark or poor spark
Step 1
1) Check the ignition system couplers for poor connections.
Are there connection in the ignition switch couplers?
YES Go to Step 2.
NO Poor connection of couplers.
Step 2
1) Measure the battery voltage between input lead wires (O and B/W) at the CDI unit with the ignition switch
in the "ON" position.
Is the voltage OK?
YES Go to Step 3.
• Faulty ignition switch.
• Faulty wire harness.
NO
• Open or short circuit in wire harness.
• Poor connection of related circuit couplers.
Ignition
switch
R
W/R
BI/Y
W/R
Pick-up coil
O
CDI unit
B/W
Ignition coil
W/Bl
Spark
plug
B/W