Kawasaki S1 250 (1974-75)

The Kawasaki S1 250SS MKI was a two-stroke motorcycle produced from 1974-75. It had a transverse three-cylinder engine with a capacity of 249cc and a compression ratio of 7.3:1. The bike had 3x 22mm carburetors, battery and coil ignition, and a kick starter. It produced a maximum power of 32hp at 8,500rpm and max torque of 2.54m-kg at 7,000rpm. The S1 250SS had a 5-speed transmission and a final chain drive. The frame was made of double tubular steel cradle, and it had telescopic hydraulic front forks and rear dual shocks with swing arm suspension. It had drum brakes on both the front and rear, with 180mm drums. The bike had a wheelbase of 1585mm, and a ground clearance of 175mm. It had a dry weight of 149.5kg and a wet weight of 160kg. The fuel capacity was 15 litres, and the bike could travel 120 miles before refuelling. Overall, it was a popular and well-liked bike during its era.

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Technical specifications:

Make Model: Kawasaki S1 250SS MKI

Year: 1974 – 75

Engine: Two stroke, transverse three cylinder,

Capacity: 249 cc / 15.2 cu-in

Bore x Stroke: 45 x 52.3mm

Cooling System: Air cooled

Compression Ratio: 7,3:1

Induction: 3x Mikuni VM22SC, 22 mm carburetor

Ignition: Battery and coil

Starting: Kick

Max Power: 32 hp / 23.8 kW @ 8 500 rpm

Max Torque: 2.54 m-kg / 18.3 lb-ft @ 7 000 rpm

Transmission: 5 Speed

Final Drive: Chain

Frame: Double tubular steel cradle

Front Suspension: Telescopic hydraulic forks

Rear Suspension: Dual shocks, Swing arm

Front Brakes: 180mm Drum

Rear Brakes: 180mm Drum

Front Tyre: 3.00 -18

Rear Tyre: 3.25 -18

Rake: 28 degrees

Trail: 110 mm / 4.3 in

Dimensions: Length 2020 mm / 79.5 in Width 820 mm / 32.3 in

Wheelbase: 1585 mm / 62.4 in

Ground Clearance: 175 mm / 6.9 in

Dry Weight: 149.5 kg / 326 lbs

Wet Weight: 160 kg / 348 lbs

Fuel Capacity: 15 Litres / 3.9 US gal