Trouble Shooting - Yamaha WR250R Service Manual
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Also See for WR250R:
- Owner's manual (100 pages) ,
- Owner's manual (96 pages) ,
- Owner's manual (112 pages)
Table of Contents
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EAS27600
TROUBLE SHOOTING
The fuel pump fails to operate.
NOTE:
Before troubleshooting, remove the following part(s):
1. Seat
2. Side cover (left/right)
3. Fuel tank
1. Check the fuse
(Main fuse, ignition fuse, EFI fuse)
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 engine stop switch.
Refer to
"CHECKING THE
SWITCHES" on page 8-63
OK↓
5. Check the relay unit (fuel pump
relay).
Refer to
"CHECKING THE
SWITCHES" on page 8-63
OK↓
6. Check fuel pressure
Refer to
"CHECKING THE PRES-
SURE REGULATOR" on page 7-6
OK↓
7. Check the fuel pump system wire
harness connections.
Refer to
"CIRCUIT DIAGRAM" on page
.
8-55
OK↓
Replace the ECU.
→
NG
→
NG
.
→
NG
.
→
NG
.
→
NG
.
→
NG
.
→
NG
8-57
FUEL PUMP SYSTEM
Replace the fuse(s).
Clean the battery terminals.
G
Recharge or replace the battery.
G
Replace the main switch.
Replace the right handlebar switch.
Replace relay unit (fuel pump relay)
Replace the fuel pump.
Properly connect or repair the fuel pump
system
s wiring.
'
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