Yamaha RX10LTGTYL Service Manual page 1517

TROUBLESHOOTING
HEADLIGHT AND/OR METER LIGHT DO NOT COME ON.
Check the bulb(s).
NO CONTINUITY
OK
Check the main fuse, ignition fuse and headlight 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 headlight beam switch.
FAULTY
OK
Check the headlight relay.
FAULTY
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.
LIGHTING SYSTEM
Replace the bulb(s).
Replace the main fuse, ignition fuse and/or
headlight 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 headlight beam switch.
Replace the headlight relay.
Replace the main relay.
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