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74 AJS Stormer Y4 250 Mk 2 specificationsAJS Stormer Y4 250 Mk 2 1974

1974 AJS Stormer Y4 250 Mk 2 photo
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1974 AJS Stormer Y4 250 Mk 2

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General information
Model:AJS Stormer Y4 250 Mk 2
Category:Cross / motocross
Rating:68.1 out of 100. Show full rating and compare with other bikes
Price as new (MSRP):US$ 1149. Prices depend on country, taxes, accessories, etc.
Engine and transmission
Displacement:247.00 ccm (15.07 cubic inches)
Engine type:Single cylinder, two-stroke
Power:25.00 HP (18.2 kW)) @ 7000 RPM
Max RPM:8000
Bore x stroke:68.0 x 68.0 mm (2.7 x 2.7 inches)
Fuel system:Carburettor. AMAL 32mm concentric
Fuel control:Port control
Ignition:flywheel magneto
Lubrication system:Pre-mix. Castrol R at 20:1
Cooling system:Air
Transmission type,
final drive:
Clutch:Wet plate Diaphram
Exhaust system:loud, expansion chamber
Chassis, suspension, brakes and wheels
Frame type:Double downtube, full cradle
Front suspension:Telescopic forks
Front suspension travel:178 mm (7.0 inches)
Front tyre dimensions:2.75-21
Rear tyre dimensions:4.00-18
Front brakes:Expanding brake (drum brake)
Front brakes diameter:127 mm (5.0 inches)
Rear brakes:Expanding brake (drum brake)
Rear brakes diameter:127 mm (5.0 inches)
Physical measures and capacities
Dry weight:104.3 kg (230.0 pounds)
Power/weight ratio:0.2396 HP/kg
Front percentage of weight:46.5
Rear percentage of weight:53.5
Seat height:762 mm (30.0 inches) If adjustable, lowest setting.
Ground clearance:254 mm (10.0 inches)
Wheelbase:1,410 mm (55.5 inches)
Fuel capacity:7.57 litres (2.00 gallons)
Other specifications
Color options:Orange tank, grey frame, black side panels
Further information
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