Yamaha FZS1000N, Service Manual

Page: 351 / 394

8-28
S
Check the condition of the battery.
Refer to “CHECKING THE BATTERY” in
CHAPTER 3.
3. Charging voltage
S
Connect the inductive self-powered
tachometer to the spark plug lead of cylinder
#1.
S
Connect the pocket tester (DC 20 V) to the
battery as shown.
Positive tester probe
!
positive battery terminal
Negative tester probe
!
negative battery terminal
S
Start the engine and let it run at approxi-
mately 5,000 r / min.
S
Measure the charging voltage.
Charging voltage
14 V at 5,000 r / min
YES
Make sure the battery is fully charged.
S
Is the charging voltage within specification?
NO
NOTE:
The charging circuit
is OK.
EAS00775
EAS00738
1. Main fuses
S
Check the fuses for continuity.
Refer to “CHECKING THE FUSES” in
CHAPTER 3.
S
Are the fuses OK?
NO YES
Replace the fuse (s).
EAS00739
NO YES
S
Clean the battery
terminals.
S
Recharge or re-
place the battery.
2. Battery
Minimum open-circuit voltage
12.8 V or more at 20
_
C (68
_
F)
S
Is the battery OK?
CHARGING SYSTEM
ELEC
NOTE:
EAS00774
TROUBLESHOOTING
The battery is not being charged.
Check:
1. Main fuse
2. Battery
3. Charging voltage
4. Stator coil resistance
5. Wiring connections
(of the entire charging system)
S
Before troubleshooting, remove the following
part(-s):
1) Seat
2) Fuel tank
3) Side cover
S
Troubleshoot with the following special
tool(-s).
Inductive self-powered
tachometer
YU-8036-B
Pocket tester measurement
YU-03112-C