Troubleshooting - Yamaha YZF-R1P Service Manual

EAS00757

TROUBLESHOOTING

The starter motor fails to turn.
Check:
1. main and ignition fuses
2. battery
3. starter motor
4. starting circuit cut-off relay
5. starter relay
6. main switch
7. engine stop switch
8. neutral switch
9. sidestand switch
10.clutch switch
11.start switch
12.wiring connections
(of the entire starting system)
NOTE:
_
• Before troubleshooting, remove the following
part(s):
1. seat
2. fuel tank
3. left side cowling
• Troubleshoot with the following special
tool(s).
Pocket tester
YM-03112
EAS00738
1. Main and ignition fuses
• Check the main and ignition fuses for con-
tinuity.
Refer to "CHECKING THE FUSES" in
chapter 3.
• Are the main and ignition fuses OK?
YES
ELECTRIC STARTING SYSTEM
NO
Replace the fuse(s).
8 - 15
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?
YES
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?
YES
– +
ELEC
NO
• Clean the battery
terminals.
• Recharge or
replace the bat-
tery.
NO
Repair or replace the
starter motor.