Kawasaki S3 400SS MKII

Kawasaki S3 400SS MKII

The Kawasaki S3 400SS MKII was a two-stroke, triple-cylinder motorcycle produced by Kawasaki. Introduced during the 1970s, it was part of the S series, which included other notable models like the S1 and S2. Here’s a description of the Kawasaki S3 400SS MKII:

Model: Kawasaki S3 400SS MKII

Key Specifications:

  • Years: The S3 400SS MKII was produced during the 1970s.
  • Engine: A two-stroke, transverse three-cylinder engine was the hallmark of the S3 400SS MKII, delivering a unique and powerful riding experience.
  • Capacity: The engine had a displacement of 398 cc, making it a mid-sized motorcycle known for its performance.
  • Bore x Stroke: The specific bore and stroke measurements influenced the engine’s power characteristics.
  • Cooling System: Air cooling was likely used to maintain the optimal operating temperature of the engine.
  • Compression Ratio: The compression ratio contributed to the engine’s efficiency and performance.
  • Induction: Carburetors were likely employed for fuel induction, ensuring an appropriate air-fuel mixture for combustion.
  • Ignition: The S3 400SS MKII probably used a traditional points or contact breaker ignition system.
  • Starting: Kick-starting was a common feature for motorcycles of this era.
  • Transmission: Equipped with a multi-speed transmission, offering versatility for different riding conditions.
  • Final Drive: Chain, a standard choice for motorcycles during this period.
  • Frame: The motorcycle likely had a robust frame design to support its powerful engine.
  • Suspension: Telescopic forks in the front and dual shocks in the rear provided a balance between comfort and handling.
  • Brakes: Drum brakes, both front and rear, were common in motorcycles of this era.
  • Wheels and Tires: Fitted with wheels and tires suitable for both on-road and occasional off-road use.
  • Fuel Capacity: The fuel tank likely had a capacity suitable for extended rides.

Additional Features:

  • The Kawasaki S3 400SS MKII was part of the S series, known for its two-stroke, triple-cylinder engines and sporty performance.
  • Recognized for its distinctive styling and powerful engine, the S3 400SS MKII was popular among riders seeking a thrilling riding experience.

The Kawasaki S3 400SS MKII represents a classic era in motorcycle design and engineering, where two-stroke engines and triple-cylinder configurations were prevalent.

ModelS3 400SS MKII
EngineTwo-stroke, transverse three-cylinder
Capacity399 cc / 24.3 cu-in
Bore x Stroke57 x 52.3 mm
Cooling SystemAir cooled
Compression Ratio6.5:1
Induction3x Mikuni VM26SC, Ø 26 mm carbs
IgnitionBattery and coil
Max Power42 hp @ 7000 rpm
Max Torque4.32 m-kg @ 6500 rpm
Transmission5 Speed
Final DriveChain
FrameDouble tubular steel cradle
Front SuspensionTelescopic Hydraulic forks
Rear SuspensionDual shocks, Swing arm
Front BrakesSingle 277mm disc
Rear Brakes180mm Drum
Front Tyre3.25 -18
Rear Tyre3.50 -18
Wheelbase1364 mm / 53.7 in
Ground Clearance153 mm / 6.0 in
Wet Weight160 kg / 353 lbs
Fuel Capacity14 Litres / 3.7 US gal
Road TestBike Group Test
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