Troubleshooting - Yamaha XP500 Service Manual

EAS00757

TROUBLESHOOTING

The starter motor fails to turn.
Check:
1. main, ignition and signaling system fuses
2. battery
3. starter motor
4. starting circuit cut-off relay 1
5. starting circuit cut-off relay 2 (XP500A)
6. starter relay
7. main switch
8. engine stop switch
9. sidestand switch
10.brake light switch (front and rear)
11.start switch
12.wiring connections
(of the entire starting system)
NOTE:
_
• Before troubleshooting, remove the following
part(s):
1. front cowling
2. leg shield
3. footrest board
4. fuel tank
• Troubleshoot with the following special
tool(s).
Pocket tester
90890-03112, YU-03112-C
EAS00738
1. Main, ignition and signaling system fuses
• Check the main, ignition and signaling sys-
tem fuses for continuity.
Refer to "CHECKING THE FUSES" in
chapter 3.
• Are the main, ignition and signaling sys-
tem fuses OK?
YES
ELECTRIC STARTING SYSTEM
NO
Replace the fuse(s).
EAS00739
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 (68 °F)
• Is the battery OK?
EAS00758
3. Starter motor
• Connect the positive battery terminal 1
and starter motor lead 2 with a jumper
lead 3.
WARNING
_
• A wire that is used as a jumper lead
must have at least the same capacity or
more as that of the battery lead, other-
wise the jumper lead may burn.
• This check is likely to produce sparks,
therefore make sure nothing flammable
is in the vicinity.
• Does the starter motor turn?
8 - 19
ELEC
YES
• Clean the battery
terminals.
• Recharge or
replace the battery.
YES
Repair or replace the
starter motor.
– +
NO
NO