Ural M 66back 1975

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Air cooled, 650cc, Boxer, OHV

Power: 31.82 HP (23.4 kW) @ 4500 rpm
Torque: 44.13 Nm (32.55 lb-ft) @ 5100 rpm
Final drive: Shaft
Top speed: 77.67 mph
Curb weight: 529.1 lbs
Category: Cruiser
Tags: Classic bike, Cruiser
Engine and transmission
Engine type: 2 cylinders, 4-stroke, Boxer
Displacement: 650 cc (39.72 cubic inches)
Bore × stroke: 3.07 inch × 2.68 inch (oversquare - shortstroke)
Cooling system: Air cooled
Power: 31.82 HP (23.4 kW) @ 4500 rpm
Torque: 44.13 Nm (32.55 lb-ft) @ 5100 rpm
Throttle: Cable operated
Valves
Valve train: OHV, variable
Valves per cylinder: 2
Fuel and ignition
Sparks per cylinder: 1
Fuel supply system: Carburetor
Ignition type: TCI (Transistor Controlled Ignition)
Funnel diameter: 0.79 inch
Compression: 7:1
Engine mounting: Transverse
Lubrication system: Wet sump
Gear box: Manual 4-speed
Clutch: Wet, multiple discs, cable operated
Final drive: Shaft
Spark plug pipe type: NGK, D7EA
Motor oil: Mineral, 10W/40
Starter: Kick-starter
Dimensions
Physical measures
Length: 87.6 inch
Width: 33.1 inch
Height: 40.2 inch
Wheel base: 57.9 inch
Ground clearance: 5.51 inch
Seat height: 31.9 inch
Weight
Curb weight: 529.1 lbs
Dry weight: 474 lbs
Chassis and suspension
Frame type: steel, Double cradle frame
Front
Suspension: Cartridge
Suspension travel: 5.91 inch
Brake: Single Drum
Tire: 95 / 100 R19
Tire pressure: 0.15 PSI, with pillion: 0.17 PSI withpilion
Rear
Suspension: twin shock, Swingarm
Suspension travel: 5.91 inch
Brake: Drum
Tire: 95 / 100 R19
Tire pressure: 0.17 PSI, with pillion: 0.2 PSI withpilion
Other
ABS available: No
Power-to-weight ratio: 0.10 KW/lbs (10.26 lbs/HP)
Acceleration (0-60 mph): 13 sec
Top speed: 77.67 mph
Fuel capacity: 5.55 gals
Number of riders: 2 persons

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