Kawasaki GPZ400S (1986-87)

The Kawasaki GPz 400S was a motorcycle produced between 1986 and 1987. It had a four-stroke, parallel twin-cylinder, DOHC engine, with a capacity of 399cc and a compression ratio of 10.7:1. The bike had a liquid cooling system and was equipped with 4x Kelhin CVM30 carburetors, and had an ignition CDI system with electric starting. The GPz 400S produced a maximum power output of 50 horsepower at 10500 rpm and maximum torque of 3.6 kgf-m at 9000 rpm. The transmission was a six-speed system with a wet multi-disc clutch, and the final drive was a chain system. The frame of the motorcycle was a tubular double-cradle design made of aluminum. The bike had telescopic forks for front suspension and a swing arm for rear suspension. It had a single disk brake at the front and a single drum brake in the rear. The GPz 400S had a seat height of 770mm and weighed 169kg, with a fuel capacity of 15 liters. It had a front tire size of 100/90-16 and a rear tire size of 120/90-16.

Technical specifications:

Make Model: Kawasaki GPz 400S

Year: 1986 – 87

Engine: Four stroke, parallel twin cylinder, DOHC, 4 valve per cylinder.
Capacity: 399 cc / 24.3 cu-in
Bore x Stroke: 70 x 51 mm
Cooling System: Liquid cooled
Compression Ratio: 10.7:1
Induction: 4x Kelhin CVM30 carburetors
Ignition: CDI
Starting: Electric
Max Power: 50 hp / 36.5 kW @ 10500 rpm
Max Torque: 3.6 kgf-m / 26 lb-ft @ 9000 rpm
Clutch: Wet multi disc
Transmission: 6 Speed
Final Drive: Chain
Gear Ratio: 1st 2,571 2nd 1,777 3rd 1,38 4th 1,125 5th 0,961 6th 0,851
Frame: Tubular, double cradle (aluminium)

Front Suspension: Telescopic forks
Rear Suspension: Swing arm
Front Brakes: Single disc
Rear Brakes: Single drum
Front Tyre: 100/90-16
Rear Tyre: 120/90-16
Seat Height: 770 mm / 30.3 in
Dry Weight: 169 kg / 372.5 lbs
Fuel Capacity: 15 Litres / 3.9 US gal

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