6-16 ELECTRICAL SYSTEM
IGNITION SYSTEM
TROUBLESHOOTING
NOTE:
* Make sure the fuse is not blown and the battery is fully-charged before diagnosing.
* Make sure the transmission is in neutral and the engine stop switch is in the “RUN” position.
No spark or poor spark
Step 1
1) Check the ignition system couplers for poor connections.
Are there connection in the ignition system couplers?
Step 2
1) Measure the battery voltage between input lead wires (O/W and B/W) at the CDI unit with the ignition
switch in the “ON” position.
Is the voltage OK?
YES
Go to Step 2.
NO
Poor connection of couplers.
YES
Go to Step 3.
NO
• Faulty ignition switch.
• Faulty wire harness.
• Faulty engine stop switch.
• Poor connection of related circuit couplers.
Generator
Ignition coil
B/W
B/W
Spark
plug
Battery
Fuse
10A
B
Ignition
switch
CDI unit
Regulator/
rectifier
Engine
stop
switch
Neutral
switch
Starter
button
O
R
O/W
Y/G
Y/G
O/W
R
R
R
O
O
B/R
B/Bl
Bl
B/Bl
B/W
B/Y