ELECTRICAL SYSTEM 8-17
IGNITION SYSTEM
TROUBLESHOOTING
Spark plug
Ignition
coil
DC-DC
converter
Ignition power
source circuit
Wave form
arrangment
circuit
CPU
Driver
SCR
C
CDI unit
Emergency
switch
(E-17)
Ignition
switch
Fuse
Battery
Generator
Parking
brake
switch
Neutral
relay
Neutral
switch
Engine
stop switch
Correct
Continued on next page
• Improper coupler connection
• Faulty ignition switch
• Faulty engine stop switch
• Faulty emergency switch (E-17)
• Broken wire harness or poor
connection of related circuit
couplers
No spark or poor spark
Check ignition system couplers for poor
connections.
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.
Incorrect
Looseness
Make sure the transmission is in the neutral position
and the engine stop switch is in the “RUN” position.
Also, make sure the fuse is not blown and the
battery is fully-charged before diagnosing.
Correct
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