Ignition System - Suzuki VL1500K5 Supplementary Service Manual

IGNITION SYSTEM

ECM
CKP
sensor
Wave form
arrangement
circuit
NOTE:
The fuel cut-off circuit is incorporated in this ECM in order to prevent over-running of engine. When engine
speed reaches 5 800 – 6 000 r/min during running, this circuit cuts off fuel at the fuel injector.
TROUBLESHOOTING
No spark or poor spark
NOTE:
Check that the transmission is in neutral and the engine stop switch is in the "RUN" position. Squeeze the
clutch lever. Check that the fuse is not blown and the battery is fully-charged before diagnosing.
Step 1
1) Check the ignition system couplers for poor connections.
Is there connection in the ignition switch couplers?
YES Go to Step 2.
NO Poor connection of couplers
Power source
circuit
CPU
Throttle Gear
Engine
position position
oil temp.
sensor switch
sensor
VL1500K5 ('05-MODEL)
Engine stop switch
Side-
stand
relay
Ignition
coil
Spark plug
Fuse
#1
Ignition
switch
#2
Fuse
Battery
133