FUEL PUMP SYSTEM
8-71
EAS27570
TROUBLESHOOTING
If the fuel pump fails to operate.
IP
• Before troubleshooting, remove the following part(s):
1. Top cover
2. Right side cover
3. Fuel tank
NG →
OK ↓
NG →
OK ↓
NG →
OK ↓
NG →
OK ↓
NG →
OK ↓
NG →
OK ↓
NG →
OK ↓
1. Check the fuses.
(Main, ignition and fuel injection
system)
Refer to “CHECKING THE FUS-
ES” on page 8-125.
Replace the fuse(s).
2. Check the battery.
Refer to “CHECKING AND
CHARGING THE BATTERY” on
page 8-126.
• Clean the battery terminals.
• Recharge or replace the battery.
3. Check the main switch.
Refer to “CHECKING THE
SWITCHES” on page 8-121.
Replace the main switch.
4. Check the engine stop switch.
Refer to “CHECKING THE
SWITCHES” on page 8-121.
Replace the right handlebar switch.
5. Check the relay unit (fuel pump re-
lay).
Refer to “CHECKING THE RE-
LAYS” on page 8-129.
Replace the relay unit.
6. Check the fuel pump.
Refer to “CHECKING THE FUEL
PUMP BODY” on page 7-3.
Replace the fuel pump assembly.
7. Check the entire fuel pump system
wiring.
Refer to “CIRCUIT DIAGRAM” on
page 8-69.
Properly connect or repair the fuel pump
system wiring.
Replace the ECU.
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