Yamaha WR450F 2007 Fahrer- Und Wartungshandbuch Seite 734

W
Y
R
1
2
B
LIGHTING SYSTEM
RECTIFIER/REGULATOR INSPECTION
1. Connect the battery leads.
2. Start the engine.
3. Turn on the headlight and taillight by turn-
ing on the lights switch.
4. Inspect:
• Out-put voltage
Out of specification → Replace rectifier/
regulator.
Tester (+) lead → Yellow lead 1
Tester (–) lead → Black lead 2
Out-put voltage
12.5 ~ 13.5 V at
5,000 r/min
6 - 25
– +
ELEC
Tester selector
position
ACV-20