The Kawasaki GPz 900R Ninja (ZX900 Ninja) was a motorcycle produced from 1984-1985. It had a liquid-cooled four-stroke, transverse four-cylinder DOHC engine with 4 valves per cylinder and a capacity of 908cc. The bike had a compression ratio of 11.0:1 and used 4x 34mm Keihin CVK34 carburetors for induction. The ignition was battery-powered and fully electronic, while the starting mechanism was electric. The motorcycle had a maximum power output of 115 hp at 9500 rpm and a maximum torque of 8.7 kgf-m at 8500 rpm. It had a 6-speed transmission and a chain final drive. The frame was made of iron and designed with a double cradle structure. The front suspension featured 39mm telehydraulic forks air-assisted, while the rear suspension was a rising rate link-system with a single shock and 4-stage rebound-damping. The front brakes were dual 280mm discs with 1 piston calipers, and the rear brake was a single 270mm disc with a 1 piston caliper. The motorcycle had a wheelbase of 1425 mm and a seat height of 760 mm, with a dry weight of 228 kg and a wet weight of 257 kg. The fuel capacity was 22 liters, and the average consumption was 40.8 mpg. The standing 1/4 mile was achieved in 10.9 sec at a speed of 122.4 mph, while the top speed was 247.8 km/h or 154 mph. The Kawasaki GPz 900R Ninja (ZX900 Ninja) was part of a 1985 motosprint group test.
Technical specifications:
Make Model: Kawasaki GPz 900R Ninja (ZX900 Ninja)
| Year | 1984 – 85 |
|---|---|
| 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 |
