Yamaha RS90K, Service Manual

Page: 705 / 841

8-38
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ELEC
GRIP WARMER SYSTEM
Check the main fuse, ignition fuse, and signal fuse.
Refer to “FUSE INSPECTION” in CHAPTER 2.
Check the battery.
Refer to “BATTERY INSPECTION” in CHAPTER 2.
Check the stator coil.
Refer to “CHARGING SYSTEM”.
Check the main switch.
Refer to “IGNITION SYSTEM”.
Check the passenger grip warmers.
Check the passenger grip warmer switch.
Check the passenger grip warmer relay.
Check the load control relay.
Refer to “IGNITION SYSTEM”.
Check the grip warmer system’s wiring.
Refer to “CIRCUIT DIAGRAM”.
Correct the connection and/or replace the rectifier/
regulator and/or ignitor unit.
PASSENGER GRIP WARMER DOES NOT OPERATE. (RST90/RST90TF)
OK
FAULTY Replace the main fuse, ignition fuse, and/or signal
fuse.
OK
OUT OF SPECIFICATION
Replace and/or charge the battery.
Refer to “BATTERY INSPECTION” in CHAPTER
2.
OK
OUT OF SPECIFICATION Replace the stator coil assembly.
OK
NO CONTINUITY
Replace the main switch.
OK
NO CONTINUITY Replace the passenger grip warmer(s).
OK
NO CONTINUITY Replace the passenger grip warmer switch.
OK
FAULTY Replace the passenger grip warmer relay.
OK
FAULTY Replace the load control relay.
OK
FAULTY
Properly connect or repair the grip warmer sys-
tem’s wiring.