| General information |
|---|
| Model: | AJS Stormer Y4 250 Mk 2 |
| Year: | 1974 |
| 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 |
| 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) |
| 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 |
| Starter: | Kick |
| Further information |
|---|
| Insurance costs | Get estimated US insurance cost with a quote from Allstate Motorcycle Insurance.
|
| Parts finder |
Chaparral provides online schematics & OEM parts for the US.
Motorcycle Superstore provides an easy-to-use parts finder. Ships to the US, Canada, UK and Australia.
MotoSport.com ships motorcycle parts and accessories to most countries.
Sixity.com has low prices and free shipping on ATV and motorcycle parts to the US.
Also check out our overview of motorcycle webshops at Bikez.info. |
| Motocross parts | Parts and accessories available from MotoSport.com . Ships to the North America, the EU, Australia, India, etc. |
| Ask questions | Join the 74 AJS Stormer Y4 250 Mk 2 discussion group or the general AJS discussion group. |
| Loans, tests, etc | Search the web for dealers, loan costs, tests, customizing, etc. |
| Related bikes | List related bikes for comparison of specs. |
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(24.3 out of 100)