Troubleshooting - Suzuki VL125 Service Manual

TROUBLESHOOTING

Starter motor will not run.
The transmission is in neutral. Grasp the
clutch lever, turn on the ignition switch
with the engine stop switch in the "RUN"
position and listen for a click from the
starter relay when the starter button is
pushed.
No click
Measure the starter relay voltage at the
starter relay connectors (between Y/B +
and B/W -) when the starter button is
pushed.
Voltage
Check the starter relay.
(! 6-14)
OK
The starter motor runs when the transmission is in neutral, but does not run when the transmission is in
any position other than neutral, with the side-stand up.
Check the side-stand switch.
(!6-15)
OK
Others
Engine does not turn though
the starter motor runs.
Clicks
No voltage
No good
No good
• Faulty starter clutch
ELECTRICAL SYSTEM 6-11
Check if the starter motor runs
when its terminal is connected
to the battery + terminal (Do
not use thin "wire" because a
large amount of current flows)
Runs Does not run
• Faulty starter motor
• Faulty starter relay
• Loose or disconnected starter
motor lead wire
• Faulty ignition switch
• Faulty engine stop switch
• Faulty clutch lever position
switch
• Faulty gear position switch
• Faulty turn signal/side-stand
relay
• Faulty starter button
• Poor contact of connector
• Open circuit in wire harness
• Faulty starter relay
• Poor contact of the starter relay
• Faulty side-stand switch
• Open circuit in wire harness
• Poor contact of connector