Troubleshooting - Yamaha WR250R Service Manual

EAS27290

TROUBLESHOOTING

Any of the following fail to light: turn signal light, brake light, turn signal indicator light and fuel level
G
warning light.
The horn fails to sound.
G
The speedometer does not operate normally.
G
The fuel indicator light does not come on.
G
The coolant temperature warning light does not operate normally.
G
NOTE:
Before troubleshooting, remove the following part (s):
1. Seat
2. Side cover (left)
3. Air scoop (left/right)
4. Fuel tank
.
1. Check the fuses.
(Main, ignition, signaling and head-
light)
Refer to
"CHECKING THE FUSES" on
.
page 8-67
OK↓
2. Check the battery.
Refer to
"CHECKING AND CHARG-
ING THE BATTERY" on page 8-68
OK↓
3. Check the main switch.
Refer to
"CHECKING THE
SWITCHES" on page 8-63
OK↓
4. Check the entire signaling system
wiring.
Refer to
"CIRCUIT DIAGRAM" on page
.
8-19
OK↓
This circuit is OK.
Check the signaling system
The horn fails to sound.
1. Check the horn switch.
Refer to
"CHECKING THE
SWITCHES" on page 8-63
OK↓
2. Check the horn.
Refer to
"CHECKING THE HORN" on
.
page 8-77
OK↓
3. Check the entire signaling system
wiring.
Refer to
"CIRCUIT DIAGRAM" on page
.
8-19
OK↓
→
NG
→
NG
.
→
NG
.
s
'
→
NG
→
NG
.
→
NG
s
'
→
NG
8-21
SIGNALING SYSTEM
Replace the fuse (s).
Clean the battery terminals.
G
Recharge or replace the battery.
G
Replace the main switch.
Properly connect or repair the signaling
system's wiring.
Replace the left handlebar switch.
Replace the horn.
Properly connect or repair the signaling
system s wiring.
'