Troubleshooting - Yamaha XF50W Service Manual

EAS00757

TROUBLESHOOTING

The starter motor fails to turn.
Check:
1. main fuse
2. battery
3. starter motor
4. starting circuit cut-off relay
5. starter relay
6. main switch
7. brake light switch(front and rear)
8. engine stop switch
9. sidestand switch(optional)
10.start switch
11.wiring connections
(of the entire starting system)
NOTE:
8 Before troubleshooting, remove the follow-
ing part(s):
1. battery cover/front cover
2. side cover(left and right)
3. front fork upper cover
4. front fork cover(left and right)
5. leg shield1
6. air filter assembly
8 Troubleshoot with the following special
tool(s).
Pocket tester
90890-03112 (YU-03112-C)
ELECTRIC STARTING SYSTEM
EAS00738
1. Main Fuse
•
ter 3.
*
EAS00739
2. Battery
•
THE BATTERY" in chapter 3.
II
•
8-16
Check the fuse for continuity.
Refer to "CHECKING THE FUSE" in chap-
Is the fuse OK?
YES
V
Replace the fuse.
Check the condition of the battery.
Refer to "CHECKING AND CHARGING
Minimum open-circuit voltage
12.8 V or more at 20°C (68°F)
Is the battery OK?
YES
V
•
•
4
NO
4
NO
Clean the battery ter-
minals.
Recharge or replace
the battery.