Yamaha WR250FM Bicycle User Manual


 
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ELEC
LIGHTING SYSTEM
LIGHT SWITCH INSPECTION
1. Inspect:
Light switch conduct
No continuous while being Replace.
Continuous while being OFF Replace.
Tester (+) lead
Yellow lead
1
Tester () lead
Blue lead
2
Y
1
L
2
Tester selector
position
×
1
OFF
AC MAGNETO INSPECTION
1. Inspect:
Lighting coil resistance
Out of specification Replace.
RECTIFIER/REGULATOR INSPECTION
1. Connect the battery leads.
2. Start the engine.
3. Turn on the headlight and taillight by turn-
ing on the light switch.
4. Inspect:
Out-put voltage
Out of specification Replace rectifier/
regulator.
Tester (+) lead
Yellow lead
1
Tester () lead
Ground
2
Lighting coil
resistance
Tester selector
position
0.224 ~ 0.336
at
20 °C (68 °F)
×
1
Tester (+) lead
Yellow lead
1
Tester () lead
Black lead
2
Out-put voltage
Tester selector
position
13.0 ~ 14.0 V at
5,000 r/min
ACV-20
R
B
W
Y
1
2