Ignition System; Troubleshooting - Suzuki DR-Z70 Service Manual

6-16 ELECTRICAL SYSTEM

IGNITION SYSTEM

O
R O
R
Ignition
switch
R
Fuse
10A
R
Battery
B

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?
YES Go to Step 2.
NO Poor connection of 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 3.
• Faulty ignition switch.
• Faulty wire harness.
NO
• Faulty engine stop switch.
• Poor connection of related circuit couplers.
O/W
Y/G
O O/W Y/G
Engine Starter
stop button
switch
Regulator/
B/R
rectifier
B/W
Generator
B/Y
CDI unit
Bl
Neutral
B/Bl B/W switch
B/Bl
Ignition coil
Spark
plug
B/W