Buell 2007 LIGHTNING Service Manual

2007 Buell Lightning: Electrical 7-23
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CHARGING SYSTEM 7.7
GENERAL
The charging system consists of the alternator and regulator.
Charging system circuits are shown in Figure 7-27.
NOTE
Never install accessory wiring between battery post and bat-
tery 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-
tener.
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 7-25. 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:
Battery
Check for a weak or dead battery. See 7.11 BATTERY. Bat-
tery 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 7-27.
Voltage Regulator Inspection
See Figure 7-26. The plug connector to stator must be clean
and tight.
Figure 7-25. Voltage Regulator
Figure 7-26. Stator Connector [46]
10502
12369

Buell 2007 LIGHTNING Specifications

General

Year	2007
Manufacturer	Buell
Model	Lightning
Category	Motorcycle
Displacement	1203 cc
Bore x Stroke	88.9 mm x 96.8 mm
Compression Ratio	10.0:1
Fuel System	Electronic fuel injection
Transmission	5-speed
Final Drive	Belt
Rear Suspension	Showa shock absorber
Rear Brakes	Single disc, 1-piston caliper
Engine Type	V-Twin
Ignition	Digital
Front Suspension	Showa inverted fork
Front Brakes	Single disc, 6-piston caliper
Front Tire	120/70 ZR17
Rear Tire	180/55 ZR17
Wheelbase	52.0 inches
Seat Height	30.1 inches
Dry Weight	395 lbs
Fuel Capacity	14.5 liters