Kawasaki Z1-A

Kawasaki Z1-A

The Kawasaki Z1-A, produced in the early 1970s, was a legendary motorcycle known for its powerful performance and iconic design. Here’s a description of the Kawasaki Z1-A:

Model: Kawasaki Z1-A

Key Specifications:

  • Years: Manufactured during the early 1970s.
  • Engine: The Z1-A featured a four-stroke, transverse four-cylinder engine.
  • Capacity: The engine displacement was 903 cc, making it one of the largest and most powerful motorcycles of its time.
  • Bore x Stroke: The specific bore and stroke measurements influenced the engine’s characteristics.
  • Cooling System: The Z1-A used an air-cooling system, a common feature in motorcycles from that era.
  • Compression Ratio: The compression ratio contributed to the engine’s efficiency and performance.
  • Lubrication: Utilized a wet sump lubrication system for engine oil distribution.
  • Induction: Equipped with carburetors, which were commonly used for fuel delivery during that period.
  • Ignition: Featured a battery and coil ignition system.
  • Starting: Electric start was a standard feature for convenience, complemented by a kick starter.
  • Max Power: The Z1-A was capable of producing significant power, providing an exhilarating riding experience.
  • Max Torque: The torque output contributed to the motorcycle’s overall performance.
  • Clutch: Equipped with a wet multi-disc clutch for smooth engagement.
  • Transmission: Typically had a 5-speed gearbox, providing versatility in various riding conditions.
  • Final Drive: Used a chain final drive to transfer power to the rear wheel.
  • Frame: The Z1-A featured a double tubular steel cradle frame for strength and stability.
  • Suspension: Employed telescopic front forks and dual shocks in the rear for responsive handling.
  • Brakes: Featured disc brakes in the front and drum brakes in the rear for effective stopping power.
  • Wheels and Tires: Fitted with wheels and tires suitable for the era’s standards.
  • Fuel Capacity: The fuel tank had a capacity to support longer rides.

Additional Features:

  • The Kawasaki Z1-A was celebrated for its distinctive and muscular design, featuring a prominent fuel tank and a classic silhouette.
  • Known for its exceptional speed and performance, the Z1-A was considered one of the fastest production motorcycles of its time.
  • Its success on the market contributed to Kawasaki’s reputation as a manufacturer of high-performance motorcycles.

The Kawasaki Z1-A remains an iconic motorcycle, revered by enthusiasts and collectors for its historical significance and contribution to the evolution of high-performance bikes.

EngineFour-stroke, transverse four-cylinder, DOHC, 2 valve per cylinder
Capacity903 cc / 55.1 cu-in
Bore x Stroke66 x 66 mm
Cooling SystemAir cooled
Compression Ratio8.5:1
LubricationWet sump, trachoid pump
Air FiltrationTreated synthetic fiber
Induction4 x 28mm Mikuni VM28SC carburetors
IgnitionBattery and coil
StartingElectric & kick
Max Power82 hp / 59.8 kW @ 8500 rpm
Max Torque73.5 Nm / 54.3 lb-ft @ 7000 rpm
ClutchWet, multi-plate
Transmission5 Speed
Final DriveChain
Primary DriveStraight cut gears
Gear Ratio1st 12.79:1, 2nd 8.84:1, 3rd 6.74:1, 4th 5.58:1, 5th 4.92:1
FrameDouble tubular steel cradle
Front Suspension36mm Telescopic forks
Rear SuspensionDual shock, 5-way preload adjustment
Front BrakesSingle 296mm disc, 2 piston caliper
Rear Brakes200mm drum
Front Tyre3.25 H19
Rear Tyre4.00 S18
Trail3.75 in.
DimensionsLength 2209.8 mm / 87.0 in., Wheelbase 1498.6 mm / 59.0 in, Handlebar Width 818 mm / 32.2 in., Seat Height 812.8 mm / 32.0 in., Ground Clearance 170 mm / 6.75 in.
Dry Weight230 kg / 507 lbs
Wet Weight247.6 lbs / 546 lbs
Fuel Capacity18 Litres / 4.7 gal
Consumption Average48 mpg
Braking Distance 30 mph – 029.00 ft.
Braking Distance 60 mph – 0126.00 ft.
Acceleration 0-30 mph2.7 sec
Acceleration 0-60 mph4.8 sec
Standing ¼ Mile12.3 sec / 112 mph
Top Speed135 mph
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