Yamaha MT-09 2021 - Troubleshooting

8-21
CHARGING SYSTEM
EAS30497
TROUBLESHOOTING
The battery is not being charged.
TIP
• Before troubleshooting, remove the following part(s):
1. Rider seat
2. Fuel tank side cover
3. Fuel tank center cover
4. Fuel tank
5. Air filter case
1. Check the fuse.
(Main)
Refer to “CHECKING THE FUS-
ES” on page 8-55.
NG→ Replace the fuse.
OK↓
2. Check the battery.
Refer to “CHECKING AND
CHARGING THE BATTERY” on
page 8-56.
NG→
• Clean the battery terminals.
• Recharge or replace the battery.
OK↓
3. Check the stator coil.
Refer to “CHECKING THE STA-
TOR COIL” on page 8-61.
NG→ Replace the stator coil assembly.
OK↓
4. Check the rectifier/regulator.
Refer to “CHECKING THE RECTI-
FIER/REGULATOR” on page 8-
61.
NG→ Replace the rectifier/regulator.
OK↓
5. Check the entire charging system’s
wiring.
Refer to “CIRCUIT DIAGRAM” on
page 8-17.
NG→
Properly connect or repair the charging
system’s wiring.
OK↓
The charging system circuit is OK.