Troubleshooting - Yamaha YZF-R15 Service Manual

TROUBLESHOOTING

The starter motor fails to turn.
NOTE:
• Before troubleshooting, remove the following part(s):
1. Seat
2. Right side panel
1. Check the fuse.
Refer to "CHECKING THE FUSE"
on page 8-61.
OK ↓
2. Check the battery.
Refer to "CHECKING AND
CHARGING THE BATTERY " on
page 8-61.
OK ↓
3. Check the starter motor operation.
Refer to "CHECKING THE START-
ER MOTOR OPERATION " on page
8-69.
NG ↓
4. Check the starter motor.
Refer to "CHECKING THE START-
ER MOTOR" on page 5-35.
OK ↓
5. Check the starting circuit cut-off re-
lay.
Refer to "CHECKING THE RE-
LAYS" on page 8-64.
OK ↓
6. Check the diode.
Refer to "CHECKING THE DIODE"
on page 8-66.
OK ↓
7. Check the starter relay.
Refer to "CHECKING THE RE-
LAYS" on page 8-64.
OK ↓
8. Check the main switch.
Refer to "CHECKING THE
SWITCHES" on page 8-57.
OK ↓
ELECTRIC STARTING SYSTEM
NG →
Replace the fuse.
NG →
• Clean the battery terminals.
• Recharge or replace the battery.
OK →
Starter motor is OK. Perform the electric
starting system troubleshooting, starting
with step 5.
NG →
Repair or replace the starter motor.
NG →
Replace the starting circuit cut-off relay.
NG →
Replace the diode.
NG →
Replace the starter relay.
NG →
Replace the main switch.
8-9