Kawasaki GPz900R Ninja (1986-88)

The Kawasaki GPz900R Ninja/ZX900 Ninja was a popular motorcycle produced from 1986-1988. It was a four-stroke, transverse four-cylinder, DOHC engine with a capacity of 908cc/55.4 cu-in, and had a compression ratio of 11.0:1 with battery ignition. It had a maximum power of 115 hp/86 kW at 9500 rpm and a maximum torque of 8.7 kgf-m/63 lb-ft at 8500 rpm. The motorcycle had a six-speed transmission, chain final drive, and a double-cradle iron frame. The suspension was front 39mm telehydraulic forks air assisted and rear rising rate link-system with a single shock adjustable preload by air pressure and four-stage rebound-damping. The front brakes featured 2x 280mm discs with one-piston calipers and the rear brake had a single 270mm disc with one-piston caliper. The GPz900R Ninja had a seat height of 760 mm/29.9 in, dry weight of 228 kg/502 lbs, and fuel capacity of 22 liters/5.8 US gal. It had an average fuel consumption of 40.8 mpg and a top speed of 247.8 km/h or 154 mph. The motorcycle was included in a 1985 bike group test motosprint group test.

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Technical specifications:

Make Model: Kawasaki GPz 900R Ninja / ZX900 Ninja

Year: 1986 – 88

Engine: Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder.

Capacity: 908 cc / 55.4 cu-in

Bore x Stroke: 72.5 x 55 mm

Cooling System: Liquid cooled

Compression Ratio: 11.0:1

Induction: 4x 34mm Keihin CVK34 carburettors

Ignition: Battery ignition, full electronic!

Starting: Electric

Max Power: 115 hp / 86 kW @ 9500 rpm

Max Torque: 8.7 kgf-m / 63 lb-ft @ 8500 rpm rpm

Transmission: 6 Speed

Final Drive: Chain

Frame: Iron, Double cradle frame

Front Suspension: 39mm Telehydraulic forks air assisted.

Front Wheel Travel: 140 mm / 5.5 in

Rear Suspension: Rising rate link-system with single shock, adjustable preload by air pressure, 4-stage rebound-damping

Rear Wheel Travel: 115 mm / 4.5 in

Front Brakes: 2x 280mm discs 1 piston calipers

Rear Brakes: Single 270mm disc 1 piston caliper

Front Tyre: 120/80 V16

Rear Tyre: 130/80 V18

Trail: 91 mm / 3.5 in

Wheelbase: 1425 mm / 56.1 in

Seat Height: 760 mm / 29.9 in

Dry Weight: 228 kg / 502 lbs

Wet Weight: 257.0 kg / 566.6 lbs

Fuel Capacity: 22 Litres / 5.8 US gal

Consumption Average: 40.8 mpg

Standing 1/4 Mile: 10.9 sec / 122.4 mph

Top Speed: 247.8 km/h / 154 mph

Road Test: Bike Group Test Motosprint Group Test 1985