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AJS Stormer Y4 250 Mk 2 19741974 AJS Stormer Y4 250 Mk 2 specifications, pictures, reviews and rating |
![]() 1974 AJS Stormer Y4 250 Mk 2. AJS. Submit more pictures.
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General information | |
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Model: | AJS Stormer Y4 250 Mk 2 |
Year: | 1974 |
Category: | Cross / motocross |
Price as new: | US$ 1149. MSRP depend on country, taxes, accessories, etc. |
Rating: | 3.4 Check out the detailed rating of off-road capabilities, engine performance, maintenance cost, etc. Compare with any other bike. |
Engine and transmission | |
Displacement: | 247.0 ccm (15.07 cubic inches) |
Engine type: | Single cylinder, two-stroke |
Power: | 25.0 HP (18.2 kW)) @ 7000 RPM |
Max RPM: | 8000 |
Compression: | 11.0:1 |
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 |
Gearbox: | 4-speed |
Transmission type, final drive: | Chain |
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 wheel travel: | 178 mm (7.0 inches) |
Front tyre: | 2.75-21 |
Rear tyre: | 4.00-18 |
Front brakes: | Expanding brake (drum brake) |
Diameter: | 127 mm (5.0 inches) |
Rear brakes: | Expanding brake (drum brake) |
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: | 1410 mm (55.5 inches) |
Fuel capacity: | 7.57 litres (2.00 gallons) |
Other specifications | |
Color options: | Orange tank, grey frame, black side panels |
Starter: | Kick |
Further information | |
Insurance costs | Compare US insurance quotes from the nation's top providers. |
Finance options | Compare US motorcycle loan quotes from the nation's top providers. |
Parts finder |
Chaparral provides online schematics & OEM parts |
Motocross parts | Parts and accessories available from Revzilla Motocross |
Ask questions | Join the 74 AJS Stormer Y4 250 Mk 2 discussion group or the general AJS discussion group. |
Related bikes | List related bikes for comparison of specs. |
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Rating sample for this AJS bike | |
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