Yamaha YZF-R1 Series Service Manual page 448

EAS30497
TROUBLESHOOTING
The battery is not being charged.
TIP
• Before troubleshooting, remove the following part(s):
1. Front side cowling/Front panel/Side cover bracket/Electrical components tray
2. Rider seat
1. Check the fuse.
(Main)
Refer to "CHECKING THE FUS-
ES" on page 8-41.
OK ↓
2. Check the battery.
Refer to "CHECKING AND
CHARGING THE BATTERY" on
page 8-42.
OK ↓
3. Check the stator coil.
Refer to "CHECKING THE STATOR
COIL" on page 8-46.
OK ↓
4. Check the rectifier/regulator.
Refer to "CHECKING THE RECTI-
FIER/REGULATOR" on page 8-46.
OK ↓
5. Check the entire charging system's
wiring.
Refer to "CIRCUIT DIAGRAM" on
page 8-12.
OK ↓
The charging system circuit is OK.
CHARGING SYSTEM
NG →
Replace the fuse.
NG →
• Clean the battery terminals.
• Recharge or replace the battery.
NG →
Replace the stator coil assembly.
NG →
Replace the rectifier/regulator.
NG →
Properly connect or repair the charging
system's wiring.
8-13