Troubleshooting - Yamaha YZF-R6 Service Manual

EB803020

TROUBLESHOOTING

The starter motor fails to turn.
Check:
1. main and ignition fuses
2. battery
3. starter motor
4. starting circuit cutoff relay
5. Diode
6. starter relay
7. main switch
8. engine stop switch
9. neutral switch
10. sidestand switch
11. clutch switch
12. start switch
13. wiring
(of the entire starting system)
NOTE:
S Before, troubleshooting, remove the following
part(-s):
1) rider seat
2) fuel tank
3) air filter case
4) front cowling inner panels
5) Side cowling inner panels
6) Side cowlings
S Troubleshoot with the following special tool
(-s).
Pocket tester
90890-03112
EB802400
1. Main and ignition fuses
S Check the main and ignition fuses for conti-
nuity.
Refer to "CHECKING THE FUSES" in chap-
ter 3.
S Are the main and ignition fuses OK?
YES
ELECTRIC STARTING SYSTEM
NO
Replace the fuse(-s).
EB802401
2. Battery
S Check the condition of the battery.
Refer to "CHECKING AND CHARGING THE
BATTERY" in chapter 3.
Open-circuit voltage
12.8 V or more at 20_C
S Is the battery OK?
YES
EB803400
3. Starter motor
S Connect the battery positive terminal
starter motor lead
WARNING
S A wire that is used as a jumper lead must
have at least the same capacity of the
battery lead, otherwise the jumper lead
may burn.
S This check is likely to produce sparks,
therefore make sure that no flammable
gas or fluid is in the vicinity.
S Does the starter motor turn?
YES
8-18
ELEC
NO
S Clean the battery
terminals.
S Recharge or
replace the battery.
and
1
with a jumper lead
2
NO
Repair or replace the
starter motor.
.
3