Yamaha WR450F(W), Owner'S Service Manual

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LIGHTING SYSTEM
LIGHTING SYSTEM
INSPECTION STEPS
Refer to the following flow chart when inspecting the lighting system for possible problems.
NOTE:
• Remove the following parts before inspection.
1) Seat
2) Fuel tank
3) Left side cover
• Use the following special tool in this inspection.
Check the bulb and bulb
socket.
Replace the bulb
and/or bulb socket.
Check the taillight (LEDs).
Replace the taillight
assembly.
Check the AC magneto. Lighting coil Replace.
Check the entire lighting
system proper for connec-
tions.
Repair or replace.
Check the rectifier/regulator.
Out-put
voltage
Replace.
Pocket tester:
YU-3112-C/90890-03112
No good
OK
No good
OK
No good
OK
Improperly connected
OK
No good