Yamaha WR250F(R) Owner's Service Manual page 778

EC680000
CHARGING SYSTEM
EC681001
INSPECTION STEPS
If the battery is not charged, use the following inspection steps.
*1 Check fuse.
OK
*2 Check battery.
OK
Check each coupler and wire
connection.
OK
Check charging voltage.
No good
Check AC magneto.
OK
Replace rectifier/regulator.
*1 marked: Refer to "FUSE INSPECTION" section in the CHAPTER 3.
*2 marked: Refer to "BATTERY INSPECTION AND CHARGING" section in the CHAPTER 3.
NOTE:
• Remove the following parts before inspection.
1) Seat
2) Fuel tank
• Use the following special tool in this inspection.
Pocket tester:
YU-3112-C/
90890-03112
Inductive tachometer:
YU-8036-B
Engine tachometer:
90890-03113
CHARGING SYSTEM
No good
No good
No good
OK
No good
Charging coil
6 - 45
– +
ELEC
Replace fuse and check
wire harness.
Recharge or replace.
Repair or replace.
Charging system is good.
Replace.