7-30 2003 Buell XB9S: Electrical
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VOLTAGE REGULATOR 7.8
GENERAL
The voltage regulator is mounted to the front of the crank-
case. The voltage regulator is not repairable. Replace the unit
if it fails.
REMOVAL
1. Remove seat. See 2.41 SEAT.
1WARNING1WARNING
To protect against shock and accidental start-up of vehi-
cle, disconnect the negative battery cable before pro-
ceeding. Inadequate safety precautions could result in
death or serious injury.
2. Disconnect negative battery cable from battery.
CAUTION
When disconnecting the alternator stator wiring, pull
apart the connector by firmly grasping both connector
halves. Do not pull on leads or damage to the wires and/
or terminals may result.
3. See Figure 7-34. Disconnect stator connector [46] (1)
and voltage regulator connector [77] (2) located under
sprocket cover. See 7.25 SPROCKET COVER WIRING.
4. Remove fasteners (5) and voltage regulator (4) from
bracket (3).
INSTALLATION
1. See Figure 7-34. Attach
new
voltage regulator (4) to
bracket (3). Tighten
new
fasteners (5) to 48-60
in-lbs
(5.4-6.8 Nm).
2. Connect stator connector [46] (1) and voltage regulator
connector [77] (2) located under sprocket cover. See
7.25 SPROCKET COVER WIRING.
3. Connect negative battery cable to battery terminal.
1WARNING1WARNING
After installing seat, pull upward on front of seat to be
sure it is locked in position. If seat is loose, it could shift
during vehicle operation and startle the rider, causing
loss of control which could result in death or serious
injury.
4. Install seat. See 2.41 SEAT.
5. Test charging system. See 7.6 CHARGING SYSTEM.
Figure 7-33. Voltage Regulator Connector [77]
Figure 7-34. Voltage Regulator
22
3
4
3
4
11
22
11
35
41
b1095a7x
Battery Fuse
Voltage
Regulator
Stator
[46A]
[77A]
R
BK
[46B]
[77B]
b1004x7x
1. Stator connector [46]
2. Voltage regulator connector [77]
3. Voltage regulator mount bracket
4. Voltage regulator
5. Fastener (3)
3
5
4
1
2
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