Troubleshooting; Starter Motor - Yamaha YJ125S Service Manual

EAS00757

TROUBLESHOOTING

The starter motor fails to turn.
Check:
1. Main fuse
2. Battery

3. Starter motor

4. Starting circuit cut-off relay
5. Starter relay
6. Main switch
7. Brake light switch (front, rear)
8. Engine stop switch
9. Sidestand switch
10. Start switch
11. Wiring connections
(of the entire starting system)
NOTE:
8 Before troubleshooting, remove the fol-
lowing part(s):
1. Head light cover
2. Front turn signal light bracket
3. Leg shield 1
4. Rear carrier
5. Side cover (right )
6. Cover
7. Battery cover
8 Troubleshoot with the following special
tool(s).
Pocket tester
90890-03132 (YU-03112-C)
ELECTRIC STARTING SYSTEM
EAS00738
1. Main fuse
EAS00739
2. Battery
7-16
8 Check the fuse for continuity.
Refer to "CHECKING THE FUSE" in
chapter 3.
8 Is the fuse OK?
YES
Replace the fuse.
8 Check the condition of the battery.
Refer to "CHECKING AND CHARGING
THE BATTERY" in chapter 3.
Minimum open-circuit voltage
12.8 V or more at 20°C
8 Is the battery OK?
YES
8 Clean the battery termi-
nals.
8 Recharge or replace the
battery.
- +
ELEC
NO
NO