Yamaha WR 250 Zback 1991

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Air cooled, 249cc, Single

Final drive: Chain
Category: Offroad
Tags: Enduro
Engine and transmission
Engine type: 1 cylinders, Single
Displacement: 249 cc (15.21 cubic inches)
Bore × stroke: 2.68 inch × 2.71 inch (square)
Cooling system: Air cooled
Throttle: Cable operated
Valves per cylinder: 4
Fuel and ignition
Sparks per cylinder: 1
Fuel supply system: Carburetor
Ignition type: Digital CDI
Engine mounting: Transverse
Lubrication system: Wet sump
Gear box: Manual
Clutch: Wet, multiple discs, cable operated
Final drive: Chain
Spark plug pipe type: NGK, B8EG
Starter: Kick-starter
Chassis and suspension
Frame type: steel, Single cradle frame
Suspension: Cartridge - upside-down
Tire: 80 / 100 R21 M
Tire pressure: 0.07 PSI
Suspension: mono shock, Swingarm
Tire: 100 / 100 R18 M
Tire pressure: 0.07 PSI
ABS available: No
Number of riders: 2 persons

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