ELECTRIC STARTING SYSTEM
8-9
EAS27190
TROUBLESHOOTING
The starter motor fails to turn.
NOTE:
• Before troubleshooting, remove the following part(s):
1. Seats
2. Fuel tank
3. Left lower side cowling
4. Left upper side cowling
NG
→
OK
↓
NG
→
OK
↓
OK
→
NG
↓
NG
→
OK
↓
NG
→
OK
↓
NG
→
OK
↓
NG
→
OK
↓
1. Check the fuses.
(Main and ignition)
Refer to “CHECKING THE FUS-
ES” on page 8-63.
Replace the fuse(s).
2. Check the battery.
Refer to “CHECKING AND
CHARGING THE BATTERY” on
page 8-64.
• Refill battery fluid.
• Clean the battery terminals.
• Recharge or replace the battery.
3. Check the starter motor operation.
Refer to “CHECKING THE START-
ER MOTOR OPERATION” on page
8-70.
Starter motor is OK. Perform the electric
starting system troubleshooting, starting
with step 5.
4. Check the starter motor.
Refer to “CHECKING THE START-
ER MOTOR” on page 5-36.
Repair or replace the starter motor.
5. Check the starting circuit cut-off re-
lay.
Refer to “CHECKING THE RE-
LAYS” on page 8-66.
Replace the starting circuit cut-off relay.
6. Check the diode.
Refer to “CHECKING THE DIODE”
on page 8-67.
Replace the diode.
7. Check the starter relay.
Refer to “CHECKING THE RE-
LAYS” on page 8-66.
Replace the starter relay.
YamahaR125.COM
Summary of Contents for YZF-R125
Page 1: ...5D7 F8197 E0 YAMAHAR125 COM SERVICE MANUAL YZF R125 ...
Page 6: ...YamahaR125 COM ...
Page 8: ...YamahaR125 COM ...
Page 52: ...LUBRICATION SYSTEM CHART AND DIAGRAMS 2 29 1 2 3 4 YamahaR125 COM ...
Page 70: ...CABLE ROUTING 2 47 YamahaR125 COM ...
Page 73: ...YamahaR125 COM ...
Page 102: ...ELECTRICAL SYSTEM 3 29 YamahaR125 COM ...
Page 105: ...YamahaR125 COM ...
Page 172: ...CHAIN DRIVE 4 67 YamahaR125 COM ...
Page 181: ...ENGINE REMOVAL 5 6 2 2 4 1 3 YamahaR125 COM ...
Page 263: ...THROTTLE BODY 7 8 YamahaR125 COM ...
Page 264: ...AIR INDUCTION SYSTEM 7 9 EAS27040 AIR INDUCTION SYSTEM 1 2 3 YamahaR125 COM ...
Page 268: ...AIR INDUCTION SYSTEM 7 13 YamahaR125 COM ...
Page 271: ...YamahaR125 COM ...
Page 283: ...CHARGING SYSTEM 8 12 1 AC magneto 3 Rectifier regulator 4 Main fuse 9 Battery YamahaR125 COM ...
Page 285: ...CHARGING SYSTEM 8 14 YamahaR125 COM ...
Page 295: ...SIGNALING SYSTEM 8 24 YamahaR125 COM ...
Page 299: ...COOLING SYSTEM 8 28 YamahaR125 COM ...
Page 323: ...FUEL INJECTION SYSTEM 8 52 YamahaR125 COM ...
Page 327: ...FUEL PUMP SYSTEM 8 56 YamahaR125 COM ...
Page 353: ...YamahaR125 COM ...
Page 354: ...YamahaR125 COM ...