Yamaha TT-R90E 2003 Fahrer- Und Wartungshandbuch Seite 306

INSPECTION STEPS
If the starter motor will not operate, use the following inspection steps.
*1 Check fuse
OK
*2 Check battery
OK
Check each coupler and
wire connection.
OK
*3 Check main switch.
OK
Check starter motor
operation.
OK
Check starting circuit
cut-off relay.
OK
Check starter relay.
OK
Check neutral switch.
OK
Check start switch.
*1 marked: Refer to "FUSE INSPECTION" section in the CHAPTER 3.
*2 marked: Refer to "BATTERY INSPECTION AND CHARGING" section in the CHAPTER 3.
*3 marked: Refer to "MAIN SWITCH INSPECTION" section.
NOTE:
Remove the following parts before inspection.
G
1) Seat
2) Rear fender
3) Fuel tank
Use 12 V battery in this inspection.
G
Use the following special tools in this inspection.
G
Pocket tester:
YU-3112-C/90890-03112
ELECTRIC STARTING SYSTEM
No good
No good
No good
No good
No good
No good
No good
No good
No good
6 - 7
– +
ELEC
Replace fuse and
check wire harness.
Recharge or replace.
Repair or replace.
Replace.
Repair or replace.
Replace.
Replace.
Replace.
Replace.