2002 Buell P3: Engine 3-1
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SPECIFICATIONS 3.1
NOTE
Service wear limits are given as a guideline for measuring
components that are not
new
. For measurement specifica-
tions not given under SERVICE WEAR LIMITS, see NEW
COMPONENTS.
GENERAL
Type Single cylinder, air cooled, four-
stroke
Horsepower @RPM 30 @ 6500
Torque ft-lbs @ RPM 27 @ 3200
Compression Ratio 9.2: 1
Bore 3.50 in. 88.8 mm
Stroke 3.125 in. 79.375 mm
Engine Displacement 30 cu. in. 492 cc
Oil Capacity (with filter
change)
2.0 quarts 1.89 liters
ENGINE IGNITION SPECIFICATIONS
Timing Advance (dur-
ing engine cranking)
11° BTDC
Timing Advance (at
1200 RPM)
20° BTDC
Regular Idle 1200 RPM
Fast Idle 2000 RPM
VALVE
NEW COMPONENTS SERVICE WEAR LIMITS
Fit in
guide
Exhaust 0.0015-0.0033 in. 0.0381-0.0838 mm 0.0040 in. 0.1016 mm
Intake 0.0008-0.0026 in. 0.0200-0.0700 mm 0.0035 in. 0.0889 mm
Seat width 0.040-0.062 in. 1.016-1.575 mm 0.090 in. 2.286 mm
Stem protrusion from
cylinder valve pocket
1.975-2.011 in. 50.165-51.079 mm 2.031 in. 51.587 mm
OUTER VALVE SPRING
NEW COMPONENTS SERVICE WEAR LIMITS
Free length 2.105-2.177 in. 53.467-55.296 mm 2.105 in. (min) 53.467 mm (min)
Intake 1.751-1.848 in.
(closed)
72-92 lbs 33-42 kg
1.286-1.383 in.
(open)
183-207 lbs 83-94 kg
Exhaust 1.751-1.848 in.
(closed)
72-92 lbs 33-42 kg
1.332-1.429 in.
(open)
171-195 lbs 78-88 kg
INNER VALVE SPRING
NEW COMPONENTS SERVICE WEAR LIMITS
Free length 1.926-1.996 in. 48.920-50.698 mm 1.926 in. (min) 48.920 mm (min)
Intake 1.577-1.683 in.
(closed)
38-49 lbs 17-22 kg
1.112-1.218 in.
(open)
98-112 lbs 44-51 kg
Exhaust 1.577-1.683 in.
(closed)
38-49 lbs 17-22 kg
1.158-1.264 in.
(open)
91-106 lbs 41-48 kg
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