2002 Buell S3T: Electrical 7-19
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CHARGING SYSTEM 7.8
GENERAL
The charging system consists of the alternator and regulator.
Charging system circuits are shown in Figure 7-18.
Alternator
The alternator consists of two main components:
●
The rotor which mounts to the engine sprocket shaft.
●
The stator which bolts to the engine crankcase.
Voltage Regulator
See Figure 7-18. The voltage regulator is a series regulator
with shunt control. The circuit combines the functions of recti-
fying and regulating.
TROUBLESHOOTING
When the charging system fails to charge or does not charge
at a satisfactory rate, make the following recommended
checks.
Battery
Check for a weak or dead battery. See 1.3 BATTERY. Battery
must be fully charged in order to perform any electrical tests.
Wiring
Check for corroded or loose connections in the charging cir-
cuit. See Figure 7-18.
Voltage Regulator Inspection
See Figure 7-18. The voltage regulator base must have a
clean, tight connection for proper grounding. Check by using
an ohmmeter with one lead on a known good ground, such
as battery ground cable, and the other on the regulator base.
Connector plug to stator must be clean and tight.
Figure 7-18. Voltage Regulator
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