1974 AJS Stormer Y4 250 Mk 2

AJS Stormer Y4 250 Mk 2
Picture credits: AJS. Click for large image of the 1974 AJS Stormer Y4 250 Mk 2

General motorcycle information

Model
AJS Stormer Y4 250 Mk 2
Year
1974
Category
Cross / motocross
Rating

Engine and transmission

Displacement
15.07 cubic inches (247.0 ccm)
Engine type
Single cylinder, 2 stroke
Power
25.0 horsepowers (18.6 kiloWatts) at 7000 RPM
Torque
-
Compression
11:1
Bore x stroke
4.15 x 4.15 inches (68.0 x 68.0 mm)
Fuel system
Carburettor
Fuel control
Port control
Cooling system
Air
Gearbox
4-speed
Transmission type, final drive
Chain
Starter
Kick
Fuel consumption
-
Top speed
-

Chassis, suspension, brakes and wheels

Front suspension travel
10.85 inches (177.8 mm)
Front tyre
2.75-21
Rear tyre
4.00-18
Front brake
Expanding brake (drum)
Front brakes diameter
7.75 inches (127.0 mm)
Rear brake
Expanding brake (drum)
Rear brakes diameter
7.75 inches (127.0 mm)

Physical measures and capacities

Dry weight
230.0 pounds (104.3 kg)
Seat height
46.5 inches (762 mm)
Wheelbase
86.0 inches (1409 mm)
Ground clearance
15.5 inches (254 mm)
Fuel capacity
2.00 gallons (7.6 litres)
Oil capacity
-

Further motorcycle information

Insurance costs
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