Troubleshooting - Yamaha FZ6-SS 2004 Service Manual

EAS00816

TROUBLESHOOTING

If the fuel pump fails to operate.
Check:
1. main, ignition and fuel injection fuses
2. battery
3. main switch
4. engine stop switch
5. starting circuit cut-off relay
(the fuel injection system relay)
6. fuel pump
7. wiring connections
(the entire fuel system)
NOTE:
S Before troubleshooting, remove the following
part(s):
1. seat
2. front cowling inner panel (left and right)
3. fuel tank
Troubleshoot with the following special tool(s).
Pocket tester
90890-03112, YU-3112
EAS00738
1. Main, ignition and fuel injection system
fuses
S Check the main, ignition and fuel system
fuses for continuity.
Refer to "CHECKING THE FUSES" in chap-
ter 3.
S Are the main, ignition and fuel injection sys-
tem fuses OK?
YES NO
Replace the fuse(s).
8-49
FUEL PUMP SYSTEM
EAS00739
2. Battery
S Check the condition of the battery
Refer to "CHECKING AND CHARGING
THE BATTERY" in chapter 3.
Minimum open-circuit voltage
12.8 V or more at 20_C (68_F)
S Is the battery OK?
YES
EAS00749
3. Main switch
S Check the main switch for continuity.
Refer to "CHECKING THE SWITCHES".
S Is the main switch OK?
YES
EAS00750
4. Engine stop switch
S Check the engine stop switch for continuity.
Refer to "CHECKING THE SWITCHES".
S Is the engine stop switch OK?
YES
ELEC
NO
S Clean the battery
terminals.
S Recharge or re-
place the battery.
NO
Replace the main
switch.
NO
Replace the right
handlebar switch.