Yamaha RX10K Supplementary Service Manual page 384

BACK BUZZER DOES NOT SOUND. (RX10R, RX10RS)
Check the main fuse, ignition fuse and signal fuse.
Refer to "FUSE INSPECTION" in CHAPTER 2.
FAULTY
OK
Check the battery.
Refer to "BATTERY INSPECTION" in CHAPTER 2.
OUT OF SPECIFICATION
OK
Check the stator coil and pickup coil
OUT OF SPECIFICATION
OK
Check the main switch.
Refer to "IGNITION SYSTEM".
FAULTY
OK
Check the gear position switch.
FAULTY
OK
Check the back buzzer.
DOES NOT SOUND
OK
Check the main relay.
Refer to "IGNITION SYSTEM".
FAULTY
OK
Correct the connection and/or
replace the rectifier/regulator
and/or the CDI unit.
SIGNAL SYSTEM
Replace the main fuse, ignition fuse and/or
signal fuse.
Replace and/or charge the battery.
Refer to "BATTERY INSPECTION" in
CHAPTER 2.
Replace the stator coil and pickup coil assembly.
Replace the main switch.
Replace the gear position switch.
Replace the back buzzer.
Replace the main relay.
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