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.
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 |
