Yamaha YZF-R6 99, Service Manual

Page: 371 / 400

8-37
Open-circuit voltage
12.8 V or more at 20
_
C
YES
Replace the fuse(-s).
NO
YES
S
Clean the battery
terminals.
S
Recharge or re-
place the battery.
NO
Replace the main
switch.
NO
EB802411
3. Main switch
S
Check the main switch for continuity.
Refer to “CHECKING THE SWITCHES”.
S
Is the main switch OK?
YES
1. Main and signaling system fuses
S
Check the main and signaling system fuses
for continuity.
Refer to “CHECKING AND CHARGING
THE FUSES” in chapter 3.
S
Are the main and signaling system fuses
OK?
2. Battery
S
Check the condition of the battery.
Refer to “CHECKING THE BATTERY” in
chapter 3.
S
Is the battery OK?
NO
EB806400
4. Wiring
S
Check the entire signaling system’s wiring.
Refer to “CIRCUIT DIAGRAM”.
S
Is the signaling system’s wiring properly con-
nected and without defects?
YES
Properly connect or
repair the signaling
system’s wiring. Check the condition
of each of the signal-
ing system’s circuits.
Refer to “CHECKING
THE SIGNALING
SYSTEM”.
SIGNALING SYSTEM
ELEC
NOTE:
EB806010 EB802401
TROUBLESHOOTING
S
Any of the following fail to light: turn sig-
nal light, brake light or an indicator light.
S
The horn fails to sound.
Check:
1. main and signaling system fuses
2. battery
3. main switch
4. wiring
(of the entire signaling system)
S
Before troubleshooting, remove the following
part(-s):
1) seats
2) fuel tank
3) air filter case
4) front cowling inner panels
5) bottom cowling
6) side cowling inner panels
7) side cowlings
8) windshield
9) rear cowling
S
Troubleshoot with the following special tool
(-s).
Pocket tester
90890-03112
EB802400