Electrical System - Buell 2002 S3T Service Manual

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Valve Train Noise
1. Hydraulic lifter not functioning properly.
2. Bent push rod.
3. Cam, cam gears or cam bushings worn.
4. Rocker arm binding on shaft.
5. Valve sticking in guide.
Excessive Vibration
1. Engine tie-bars loose, broken or improperly spaced.
2. Lower mounting bolts loose.
3. Broken frame.
4. Primary chain badly worn or links tight as a result of
insufficient lubrication.
5. Wheels not aligned and/or tires worn.
6. Internal engine problem.
ENGINE LUBRICATION
SYSTEM
Oil Does Not Return To Oil Tank
1. Oil tank empty.
2. Return pump gears damaged.
3. Oil feed pump not functioning.
4. Restricted oil lines or fittings.
Engine Uses Too Much Oil or
Smokes Excessively
1. Piston rings badly worn or broken.
2. Valve stem seals worn or damaged.
3. Valve guides worn.
Engine Leaks Oil From Cases, Push Rods,
Hoses, Etc.
1. Loose parts.
2. Imperfect seal at gaskets, push rod cover, washers, etc.
To aid locating leaks, use -35457).
3. Restricted oil return line to tank.
4. Restricted breather passage(s) to air cleaner.

ELECTRICAL SYSTEM

Alternator Does Not Charge
1. Regulator-rectifier module not functioning.
2. Rectifier not grounded.
3. Engine ground wire loose or broken.
4. Loose or broken wires in charging circuit.
5. Stator not functioning.
6. Rotor not functioning.
1-42 2002 Buell S3T: Maintenance
Alternator Charge Rate Is Below Normal
1. Regulator-rectifier module not functioning.
2. Stator not functioning.
3. Rotor not functioning.
4. Weak battery.
5. Loose connections.
FUEL
Poor Fuel Economy
1. Excessive "pumping" of throttle control grip.
2. O2 sensor damaged or malfunctioning (bike running
rich). See dealer.
3. Inlet valve sticking.
4. Inlet valve and/or valve seat worn or damaged.
5. Dirt or other foreign matter between valve and its seat.
TRANSMISSION
Shifts Hard
1. Clutch dragging slightly.
2. Shifter forks (inside transmission) damaged.
3. Corners worn off shifter clutch dogs (inside transmis-
sion).
Jumps Out of Gear
1. Shifter pawl improperly adjusted.
2. Shifter engaging parts (inside transmission) badly worn
and rounded.
3. Shifter forks bent.
4. Damaged gears.
CLUTCH
Slips
1. Clutch controls improperly adjusted.
2. Worn friction plates.
Drags or Does Not Release
1. Clutch controls improperly adjusted.
2. Clutch plates excessively warped.
Chatters
1. Friction or steel plates worn, warped or dragging.