6-22 ELECTRICAL SYSTEM
TROUBLESHOOTING
Starter motor will not run
Step 1
1) Shift the transmission into 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.
Is a click sound heard?
Step 2
1) 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.)
Does the starter motor run?
Step 3
1) Measure the starter relay voltage at the starter relay connectors (between B/Bl
+ and B/Y
-) when the
starter button is pushed.
Is a voltage OK?
Step 4
1) Check the starter relay. (!6-26)
Is the starter relay OK?
Starter motor runs but does not crank the engine
1) 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. (!6-27)
Is the side-stand switch OK?
Engine does not turn though the starter motor runs.
• Faulty side-stand switch
YES Go to Step 2.
NO Go to Step 3.
YES
• Faulty starter relay
• Loose or disconnected starter motor lead wire
NO Faulty starter motor
YES Go to Step 4.
NO
• 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
YES Poor contact of the starter relay.
NO Faulty starter relay
YES
• Open circuit in wire harness
• Poor contact of connector
NO Faulty side-stand switch
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