Yamaha FJR1300(N) Motorcycle User Manual


 
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ELEC
CHARGING SYSTEM
EAS00774
TROUBLESHOOTING
Check:
1. main fuse
2. battery
3. charging voltage
4. stator assembly resistance
5. wiring connections
(of the entire charging system)
NOTE:
@
Before troubleshooting, remove the following
part(s):
1) front cowling assembly
2) fuel tank
3) air filter case
Troubleshoot with the following special
tool(s).
EAS00738
YES
NO
EAS00739
YES
NO
EAS00775
The battery is not being charged.
Engine tachometer
90890-06760
Pocket tester
90890-03112
1. Main fuse
Check the main fuse for continuity.
Refer to “CHECKING THE FUSES” in
chapter 3.
Is the main fuse OK?
Replace the fuse.
2. Battery
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
Is the battery OK?
Clean the battery
terminals.
Recharge or
replace the battery.
3. Charging voltage
Connect the engine tachometer to the spark
plug lead of cylinder #1.
Connect the pocket tester (DC 20 V) to the
battery as shown.
Tester positive probe
positive battery terminal
Tester negative probe
negative battery terminal
Start the engine and let it run at approxi-
mately 5,000 r/min.
Measure the charging voltage.
Charging voltage
14 V at 5,000 r/min