Troubleshooting - Yamaha 2009 YFM25RY Service Manual

EAS27190

TROUBLESHOOTING

The starter motor fails to turn.
TIP
• Before troubleshooting, remove the following part(s):
1. Seat
2. Front panel
3. Front fender
4. Rear fender
5. Side cover
1. Check the fuse.
Refer to "CHECKING THE FUSES"
on page 7-33.
OK↓
2. Check the battery.
Refer to "CHECKING AND
CHARGING THE BATTERY" on
page 7-33.
OK↓
3. Check the starter motor operation.
Refer to "CHECKING THE
STARTER MOTOR OPERATION"
on page 7-40.
NG↓
4. Check the starter motor.
Refer to "CHECKING THE
STARTER MOTOR" on page 5-51.
OK↓
5. Check the starting circuit cut-off
relay.
Refer to "CHECKING THE
RELAYS" on page 7-37.
OK↓
6. Check the diode (starting circuit
cut-off relay).
Refer to "CHECKING THE DIODE"
on page 7-37.
OK↓
7. Check the starter relay.
Refer to "CHECKING THE
RELAYS" on page 7-37.
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 elec-
tric 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 starting circuit cut-off
relay.
NG→
Replace the starter relay.
7-9