Yamaha CS50 Service Manual page 180

Positive tester probe
Negative tester probe
• Measure the charging coil resistance.
Charging coil resistance
0.288 ~ 0.432 Ω at 20°C
• Is the charging coil OK?
YES
Replace the char-
ging coil assembly.
EAS00779
5. Wiring
• Check the wiring connections of the entire
charging system.
Refer to "CIRCUIT DIAGRAM".
• Is the charging system's wiring properly
connected and without defects?
YES
Replace the rectifier/
regulator.
white
black
NO
NO
Properly connect or
repair the charging
system's wiring.
CHARGING SYSTEM
8-21
ELEC