Troubleshooting - Yamaha YP250 5GM2-AE1 2000 Service Manual

EB808020

TROUBLESHOOTING

The fuel pump fails to operate.
Procedure
Check:
1. Fuse (Main and Ignition)
2. Battery
3. Main switch
4. Engine stop switch
NOTE:
Remove the following parts before trouble-
shooting.
1) Rider seat
2) Passenger seat
3) Box
4) Legshield
Use the special tools specified in the trouble-
shooting section.
Pocket tester
90890-03112
YP******
1. Fuse
Refer to "CHECKING SWITCHES" section.
YP******
2. Battery
Check the battery condition.
Refer to "BATTERY INSPECTION" section
in CHAPTER 3.
YP******
3. Main switch
Refer to "CHECKING SWITCHES" section.
YP******
4. Engine stop switch
Refer to "CHECKING SWITCHES" section.
CONTINUITY
CORRECT
CONTINUITY
CONTINUITY
:
FUEL PUMP SYSTEM
5. Relay unit (fuel pump relay)
6. Fuel pump
7. Wiring connection
(engine fuel pump system)
NO CONTINUITY
Replace the fuse.
INCORRECT
Clean battery terminals.
Recharge or replace battery.
NO CONTINUITY
Replace the main switch.
NO CONTINUITY
Replace the right handlebar switch.
91
ELEC