Yamaha TT-R90(V), Owner'S Service Manual, Page: 370 / 390

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CHARGING SYSTEM (TT-R90E)
EC680000
CHARGING SYSTEM (TT-R90E)
EC681001
INSPECTION STEPS
If the battery is not charged, use the following inspection steps.
*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) Rear fender
3) 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
*1 Check fuse.
Replace fuse and
check wire harness.
*2 Check battery. Recharge or replace.
Check each coupler and
wire connection.
Repair or replace.
Check charging voltage.
Charging system is
good.
Check CDI magneto. Lighting coil Replace.
Replace rectifier/regulator.
OK
OK
OK
No good
OK
No good
OK
No good
No good
No good