Yamaha DT 250back 1977

Air cooled, 246cc, Single, 2-stroke, Reed valve

Power: 19.85 HP (14.6 kW) @ 6500 rpm
Final drive: Chain
Top speed: 85.13 mph
Curb weight: 284.4 lbs
Category: Offroad
Tags: Enduro
Engine and transmission
Engine type: 1 cylinders, 2-stroke, Single
Displacement: 246 cc (15.03 cubic inches)
Bore × stroke: 2.76 inch × 2.52 inch (oversquare - shortstroke)
Cooling system: Air cooled
Power: 19.85 HP (14.6 kW) @ 6500 rpm
Throttle: Cable operated
Valves
Valve train: Reed valve, variable
Fuel and ignition
Sparks per cylinder: 1
Fuel supply system: Carburetor
Compression: 6.8:1
Engine mounting: Transverse
Lubrication system: Mixture
Gear box: Manual 5-speed
Clutch: Wet, multiple discs, cable operated
Final drive: Chain
Starter: Electric
Dimensions
Weight
Curb weight: 284.4 lbs
Dry weight: 244.7 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
Power-to-weight ratio: 0.11 KW/lbs (8.84 lbs/HP)
Top speed: 85.13 mph
Fuel capacity: 2.38 gals
Number of riders: 2 persons

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