Yamaha RS90RK, Service Manual

Page: 638 / 841

8-10
– +
ELEC
ELECTRICAL STARTING SYSTEM
TROUBLESHOOTING
1. Connect:
• Starter relay terminals
(battery side and starter motor side)
1 Jumper lead
2. Check:
• Starter motor operation
OK
STARTER MOTOR DOES NOT OPERATE.
NO
Check the battery and connectors.
Refer to “BATTERY INSPECTION” in CHAPTER
2.
OK NO
Charge and/or replace the battery.
Refer to “BATTERY INSPECTION” in
CHAPTER 2.
Repair or replace the starter motor.
WARNING
A wire for the jumper lead 1 must have the
equivalent capacity as that of the battery lead or
more, otherwise it may cause the jumper lead to
be burned.
This check is likely to produce sparks, so be
sure that no flammable gas or fluid is in the
vicinity.
3. Disconnect:
• Starter relay coupler
4. Connect:
• Starter relay coupler terminals
1
Jumper lead
5. Check:
• Starter motor operation
OK
*
NO
Replace the starter relay.