Yamaha FZ6-S 2004, Service Manual

Page: 427 / 456

8-49
FUEL PUMP SYSTEM
ELEC
YES NO
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?
S
Clean the battery
terminals.
S
Recharge or re-
place the battery.
EAS00739
EAS00749
3. Main switch
S
Check the main switch for continuity.
Refer to “CHECKING THE SWITCHES”.
YES NO
Replace the main
switch.
S
Is the main switch OK?
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4. Engine stop switch
S
Check the engine stop switch for continuity.
Refer to “CHECKING THE SWITCHES”.
YES NO
Replace the right
handlebar switch.
S
Is the engine stop switch OK?
NOTE:
YES
NO
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.
Replace the fuse(s).
S
Are the main, ignition and fuel injection sys-
tem fuses OK?
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)
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