Yamaha 4TX-AE3 Two-Way Radio User Manual


 
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FUEL PUMP SYSTEM
ELEC
EB802401
2. Battery
_Check the condition of the battery.
Refer to “BATTERY INSPECTION”.
Open-circuit voltage
12.8 V or more at 20C
_Is the battery OK?
YES NO
_Clean the battery
terminals.
_Recharge or replace
the battery.
EB802411
3. Main switch
_Check the main switch for continuity.
Refer to “SWITCH INSPECTION”.
_Is the main switch OK?
YES NO
Repalce the main
switch.
EB802412
4. Engine stop switch
_Check the engine stop switch for continuity.
Refer to “SWITCH INSPECTION”.
_Is the engine stop switch OK?
YES NO
Replace the right han-
dlebar switch
NOTE:
1. Main and ignition fuses
_Check the main and ignition fuses for continu-
ity.
Refer to “SWITCH INSPECTION”.
_Are the main and ignition fuses OK?
YES NO
Replace the fuse (-s)
EB808020
TROUBLESHOOTING
The fuel pump fails to operate.
Check:
1. main and ignition fuses
2. battery
3. main switch
4. engine stop switch
5. fuel pump relay
6. fuel pump
7. wiring
(the entire fuel pump system)
_Before troubleshooting, remove the following
part(-s):
1) seat
2) fuel tank
3) side cowlings
4) side covers
_Troubleshoot with the following special tool(-s).
Pocket tester
90890-03112
EB802400