Troubleshooting - Yamaha WR250F Owner's Service Manual

TROUBLESHOOTING

EAS2GB2370
• The speedometer does not operate normally.
• The fuel indicator light does not come on.
TIP
Before troubleshooting, remove the following part (s):
1. Seat
2. Side cover (left/right)
3. Air scoop (left/right)
4. Fuel tank
1. Check the fuse.
Refer to "CHECKING THE FUSES"
on page 9-68.
OK 
2. Check the battery.
Refer to "CHECKING AND
CHARGING THE BATTERY" on
page 9-69.
OK 
3. Check the main relay.
Refer to "CHECKING THE RE-
LAYS" on page 9-72.
OK 
4. Check the entire signaling system's
wiring.
Refer to "CIRCUIT DIAGRAM" on
page 9-20.
OK 
This circuit is OK.
Check the signaling system
The speedometer fails to operate.
1. Check the speed sensor.
Refer to "CHECKING THE SPEED
SENSOR" on page 9-77.
OK 
2. Check the entire signaling system's
wiring.
Refer to "CIRCUIT DIAGRAM" on
page 9-20.
OK 
Replace the meter assembly.
NG 
Replace the fuse(s).
NG 
• Clean the battery terminals.
• Recharge or replace the battery.
NG 
Replace the main relay.
NG 
Properly connect or repair the signaling
system's wiring.
NG 
Replace the speed sensor.
NG 
Properly connect or repair the signaling
system's wiring.
9-22
SIGNALING SYSTEM