Yamaha WR250FM Bicycle User Manual


 
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ELEC
CHARGING SYSTEM
EC624000
COUPLERS AND LEADS CONNECTION
INSPECTION
1. Check:
Couplers and leads connection
Rust/dust/looseness/short-circuit
Repair or replace.
CHARGING VOLTAGE INSPECTION
1. Start the engine.
2. Inspect:
Charging voltage
Out of specification If no failure is
found in checking the source coil resis-
tance, replace the rectifier/regulator.
Tester (+) lead
Red lead
1
Tester () lead
Black lead
2
Charging
voltage
Tester selector
position
14.1 ~ 14.9 V at
5,000 r/min
DCV-20
R
B
WY
1
2
3. Inspect:
Charging coil resistance
Out of specification Replace.
Tester (+) lead
White lead
1
Tester () lead
Ground
2
Charging coil
resistance
Tester selector
position
0.288 ~ 0.432
at
20 °C (68 °F)
×
1