Yamaha VX700F Manuel D'atelier page 450

TROUBLESHOOTING
HEADLIGHT AND/OR METER LIGHT DO NOT COME ON.
Check the bulb(s).
OK NO CONTINUITY
For VX700DX/VT700:
Check the main fuse, "IGNITION" fuse and "HEAD" fuse.
Refer to "FUSE INSPECTION" in CHAPTER 2.
OK FAULTY
For VX700DX/VT700:
Check the battery.
Refer to "BATTERY INSPECTION" in CHAPTER 2.
OK OUT OF SPECIFICATION
For VX700/SX700/MM700:
Check the condenser.
Refer to "IGNITION SYSTEM".
OK OUT OF SPECIFICATION
Check the stator coil and pickup coil.
Refer to "IGNITION SYSTEM".
OK OUT OF SPECIFICATION
Check the main switch.
Refer to "IGNITION SYSTEM".
OK FAULTY
Check the headlight beam switch.
OK FAULTY
Check the headlight relay.
OK FAULTY
Check the load control relay.
Refer to "IGNITION SYSTEM".
OK FAULTY
Correct the connection and/or
replace the rectifier/regulator
and/or CDI unit.
LIGHTING SYSTEM
Replace the bulb(s).
Replace the main fuse, "IGNITION" fuse and/or
"HEAD" fuse.
Replace and/or charge the battery.
Refer to "BATTERY CHARGING" in CHAPTER 2.
Replace the condenser.
Replace the stator coil assembly.
Replace the main switch.
Replace the headlight beam switch.
Replace the headlight relay.
Replace the load control relay.
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