YAMAHA YZ250F FUEL CIRCUIT PUMP DIAGRAM AND TROUBLESHOOTING
2. AC magneto 3. Rectifier/regulator 4. Joint connector 6. Engine ground 7. Battery 8. Frame ground 9. Fuse 16. ECU (Engine Control Unit) 20. Fuel pump 25. Engine stop switch A. Battery sub-lead B. Wire harness TROUBLESHOOTING The fuel pump fails to operate. Before troubleshooting, remove the following part(s): Seat Side cover (left/right) Air … Read more