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Motorcycle-Catalogue » AJS

AJS Stormer Y4 250 Mk 2

General moped information

ModelAJS Stormer Y4 250 Mk 2
CategoryCross / motocross
Rating68.1 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

Engine typeSingle cylinder, two-stroke
Power25.00 HP (18.2 kW)) @ 7000 RPM
Fuel systemCarburettor. AMAL 32mm concentric
Fuel controlPort control
Ignitionflywheel magneto
Lubrication systemPre-mix. Castrol R at 20:1
Cooling systemAir
ClutchWet plate Diaphram
Exhaust systemloud, expansion chamber

Chassis, suspension, brakes and wheels

Frame typeDouble downtube, full cradle
Front tyre dimensions2.75-21
Rear tyre dimensions4.00-18
Front brakesExpanding brake (drum brake)
Front brakes diameter127 mm (5.0 inches)
Rear brakesExpanding brake (drum brake)
Rear brakes diameter127 mm (5.0 inches)

Physical measures and capacities

Dry weight104.3 kg (230.0 pounds)
Power/weight ratio0.2396 HP/kg
Front percentage of weight46.5
Rear percentage of weight53.5
Seat height762 mm (30.0 inches) If adjustable, lowest setting.
Ground clearance254 mm (10.0 inches)
Fuel capacity7.57 litres (2.00 gallons)

Other specifications

Color optionsOrange tank, grey frame, black side panels

General moped information

Price as new (MSRP)US$ 1149. Prices depend on country, taxes, accessories, etc.
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