Montesa 250 Impala Sport 1966

Air cooled, 250cc, Single, 2-stroke, Piston controlled inlet port

Engine and transmission Switch unit
Engine type:	1 cylinders, 2-stroke, Single
Displacement:	250 cc (15.28 cubic inches)
Bore × stroke:	2.83 inch × 2.36 inch (oversquare - shortstroke)
Cooling system:	Air cooled
Power:	20.94 HP (15.4 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:	9:1
Engine mounting:	Vertical
Lubrication system:	Mixture
Gear box:	Manual 4-speed
Clutch:	Wet, multiple discs, cable operated
Final drive:	Chain
Starter:	Kick-starter

Dimensions
Weight
Dry weight:	198.4 lbs
Chassis and suspension
Frame type:	steel, Single cradle frame
Front
Suspension:	Cartridge
Brake:	Single Drum
Rear
Suspension:	twin shock, Swingarm
Brake:	Drum
Other
ABS available:	No
Fuel capacity:	3.43 gals
Number of riders:	2 persons

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