Troubleshooting

FUEL PUMP SYSTEM

EAS27570

TROUBLESHOOTING
If the fuel pump fails to operate.
NOTE:
• Before troubleshooting, remove the following part(s):
1. Front cowling assembly
2. Fuel tank
3. T-bar

   1. Check the fuses.                        NG →
      (Main, ignition, and fuel injection
      system)                                             Replace the fuse(s).
      Refer to “CHECKING THE FUS-
      ES” on page 8-217.

           OK ↓
   2. Check the battery.                      NG →
      Refer to “CHECKING AND                              • Clean the battery terminals.
      CHARGING THE BATTERY” on                            • Recharge or replace the battery.
      page 8-218.
           OK ↓
   3. Check the main switch.                  NG →
      Refer to “CHECKING THE                              Replace the main switch.
      SWITCHES” on page 8-211.

           OK ↓
   4. Check the engine stop switch.           NG →
      Refer to “CHECKING THE                              Replace the right handlebar switch.
      SWITCHES” on page 8-211.

           OK ↓
   5. Check the relay unit (fuel pump re-     NG →
      lay).
                                                          Replace the relay unit.
      Refer to “CHECKING THE RE-
      LAYS” on page 8-221.
           OK ↓
   6. Check the fuel pump.                    NG →
      Refer to “CHECKING THE FUEL                         Replace the fuel pump assembly.
      PUMP BODY” on page 7-3.

           OK ↓
   7. Check the entire fuel pump system       NG →
      wiring.
                                                          Properly connect or repair the fuel pump
      Refer to “CIRCUIT DIAGRAM (1/2)”
                                                          system wiring.
      on page 8-101 and “CIRCUIT DIA-
      GRAM (2/2)” on page 8-103.

           OK ↓
   Replace the ECU.

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        FUEL PUMP SYSTEM

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