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General information |
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Model
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AJS Stormer Y4 250 Mk 2 |
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Year
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1974 |
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Category
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Cross / motocross |
| Price as new | US$ 1149. MSRP depends on country, taxes, accessories, etc. |
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Rating
|
3.4 Check out the detailed rating of off-road capabilities, engine performance, maintenance cost, etc. Compare with any other bike. |
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Engine and transmission |
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Displacement
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247.0 ccm (15.07 cubic inches) |
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Engine type
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Single cylinder, two-stroke |
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Power
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25.0 HP (18.2 kW)) @ 7000 RPM |
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Max RPM
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8000 |
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Compression
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11.0:1 |
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Bore x stroke
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68.0 x 68.0 mm (2.7 x 2.7 inches) |
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Fuel system
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Carburettor. AMAL 32mm concentric |
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Fuel control
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Port control |
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Ignition
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flywheel magneto |
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Lubrication system
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Pre-mix. Castrol R at 20:1 |
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Cooling system
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Air |
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Gearbox
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4-speed |
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Transmission type
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Chain (final drive) |
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Clutch
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Wet plate Diaphram |
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Exhaust system
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loud, expansion chamber |
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Chassis, suspension, brakes and wheels |
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Frame type
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Double downtube, full cradle |
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Front suspension
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Telescopic forks |
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Front wheel travel
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178 mm (7.0 inches) |
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Front tire
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2.75-21 |
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Rear tire
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4.00-18 |
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Front brakes
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Expanding brake (drum brake) |
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Diameter
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127 mm (5.0 inches) |
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Rear brakes
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Expanding brake (drum brake) |
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Diameter
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127 mm (5.0 inches) |
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Physical measures and capacities |
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Dry weight
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104.3 kg (230.0 pounds) |
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Power/weight ratio
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0.2396 HP/kg |
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Front percentage of weight
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46.5 |
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Rear percentage of weight
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53.5 |
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Seat height
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762 mm (30.0 inches) If adjustable, lowest setting. |
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Ground clearance
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254 mm (10.0 inches) |
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Wheelbase
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1410 mm (55.5 inches) |
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Fuel capacity
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7.57 litres (2.00 US gallons) |
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Other specifications |
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Color options
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Orange tank, grey frame, black side panels |
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Starter
|
Kick |
| Update specs | Report missing specs or required updates. |
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Further information |
| Insurance costs | Compare US insurance quotes from the nation's top providers. |
| Parts finder |
Check out our overview of motorcycle webshops at Bikez.info. |
| Maintenance | Find parts, fluids. filters, maintenance tools and service manuals at Amazon.com. |
| 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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Compare with another motorcycle |
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Rating sample for this AJS bike
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Touring capabilities for the 1974 AJS Stormer Y4 250 Mk 2:
 (24.3 out of 100)
Click here for complete rating. You can also compare bikes.
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