Charging System; Alternator; Voltage Regulator; Battery - Buell XB9R 2003 Service Manual

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Table of Contents

CHARGING SYSTEM

The charging system consists of the alternator and regulator.

Charging system circuits are shown in

Never install accessory wiring between battery post and

battery cable. Installing wire between battery post and

battery cable could cause damage to electrical system.

When installing electrical accessories, install longer battery

post fasteners. Install wiring between battery cable and fas-

The alternator consists of two main components:

The rotor which mounts to the engine sprocket shaft.

The stator which bolts to the engine crankcase.

Figure 7-20.

The voltage regulator is a series regulator

with shunt control. The voltage regulator combines the func-

tions of rectifying (converting AC voltage to DC) and regulat-

ing (controlling voltage output).

TROUBLESHOOTING

When the charging system fails to charge or does not charge

at a satisfactory rate, check the following:

Check for a weak or dead battery. See

tery must be fully charged in order to perform any electrical

Check for corroded or loose connections in the charging cir-

Figure 7-22.

Voltage Regulator Inspection

Figure 7-21.

The plug connector to stator must be clean

Figure 7-22.

BATTERY. Bat-

Figure 7-20. Voltage Regulator

Figure 7-21. Stator Connector [46]

2003 Buell XB9R: Electrical