Kawasaki GPZ1000RX (1986)

The Kawasaki GPz 1000RX is a motorcycle produced in 1986, with a four-stroke, transverse four-cylinder engine, and 997cc capacity. With 4 valves per cylinder, its bore x stroke measure 74 x 58 mm, and it has a liquid cooling system with a compression ratio of 10.2:1. The bike uses 4x Keihin CVK36 carburetors and TCI (Transistor Controlled Ignition) for its ignition, as well as an electric starter. It has a maximum power of 125 hp at 9500 rpm and a maximum torque of 10.1 kgf-m at 8500 rpm.

The GPz 1000RX features a wet sump lubrication system, a wet, multiple discs, cable-operated clutch, and a 6-speed transmission, with a final chain drive. The bike’s chassis is made of steel and has twin spar construction. It also has a 40mm telescopic front fork with air assistance and AVDS, and a Uni-Trak rising-rate rear suspension with adjustable rebound damping. The front and rear brakes use 280mm and 260mm discs, respectively, with 1 piston calipers.

The motorcycle’s front and rear tires have a size of 120/80-16 and 150/80-16, respectively. It has a seat height of 790 mm and a dry weight of 238 kg, with a fuel capacity of 21 litres. It has an average fuel consumption of 14.5 km/lit and can reach a top speed of 255.5 km/h, with a standing 1/4 mile time of 10.7 sec at 206.8 km/h. The bike was tested in a group test by Motosprint in 1987.

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Technical specifications:

Make Model: Kawasaki GPz 1000RX

Year: 1986

Engine: Four stroke, transverse four cylinders, 4 valve per cylinder

Capacity: 997 cc / 60.8 cu-in

Bore x Stroke: 74 x 58 mm

Cooling System: Liquid cooled

Compression Ratio: 10.2:1

Lubrication: Wet sump

Induction: 4x Keihin CVK 36 carburetors

Ignition: TCI (Transistor Controlled Ignition)

Starting: Electric

Max Power: 125 hp / 91.1 kW @ 9500 rpm ( 116.2 hp @ 9750 rpm )

Max Power Rear Tyre: 116.2 hp @ 9750 rpm

Max Torque: 10.1 kgf-m / 99 Nm @ 8500 rpm

Clutch: Wet, multiple discs, cable operated

Transmission: 6 Speed

Final Drive: Chain

Frame: Steel, twin spar

Front Suspension: 40mm Telescopic forks, air assistance and AVDS

Front Wheel Travel: 140 mm / 5.9 in

Rear Suspension: Uni-Trak rising-rate with adjustable rebound damping.

Rear Wheel Travel: 115 mm / 4.5 in

Front Brakes: 2x 280mm discs 1 piston calipers

Rear Brakes: Single 260mm disc 1 piston caliper

Front Tyre: 120/80-16

Rear Tyre: 150/80-16

Seat Height: 790 mm / 31.1 in

Dry Weight: 238 kg / 524 lbs

Wet-weight: 267.0 kg / 588.6 lbs

Fuel Capacity: 21 Litres / 5.5 US gal

Consumption Average: 14.5 km/lit

Braking 60 – 0 / 100 – 0: 13.4 m / 39.1 m

Standing 1/4 Mile: 10.7 sec / 206.8 km/h

Top Speed: 255.5 km/h / 158.7 mph

Road Test: Motosprint 1987 Group Test