Harley-Davidson SX 250back 1977 forward

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Air cooled, 243cc, Single, 2-stroke, Piston controlled inlet port

Power: 19.85 HP (14.6 kW) @ 7000 rpm
Final drive: Chain
Top speed: 71.46 mph
Curb weight: 275.6 lbs
Category: Offroad
Tags: Enduro
Engine and transmission
Engine type: 1 cylinders, 2-stroke, Single
Displacement: 243 cc (14.85 cubic inches)
Bore × stroke: 2.83 inch × 2.35 inch (oversquare - shortstroke)
Cooling system: Air cooled
Power: 19.85 HP (14.6 kW) @ 7000 rpm
Throttle: Cable operated
Valves
Valve train: Piston controlled inlet port, variable
Fuel and ignition
Sparks per cylinder: 1
Fuel supply system: Carburetor
Compression: 10.3:1
Engine mounting: Transverse
Gear box: Manual 5-speed
Clutch: Wet, multiple discs, cable operated
Final drive: Chain
Dimensions
Weight
Curb weight: 275.6 lbs
Chassis and suspension
Frame type: steel, Double cradle frame
Front
Suspension: Cartridge
Brake: Drum
Tire: 83 / R19
Rear
Suspension: twin shock, Swingarm
Brake: Drum
Tire: 100 / R18
Other
ABS available: No
Power-to-weight ratio: 0.12 KW/lbs (8.56 lbs/HP)
Top speed: 71.46 mph
Fuel capacity: 2.77 gals
Number of riders: 2 persons

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