The Kawasaki GPz 550, also known as the Z 550GP, was produced from 1981 to 1982. It features a 553cc, four-stroke, transverse four-cylinder engine with DOHC and two valves per cylinder. The bike has a 10.0:1 compression ratio and is cooled by air. With its four 22mm Teikei constant vacuum carburetors and CDI ignition, it has a maximum power output of 58 horsepower at 9000 rpm and a maximum torque of 35.5 lb-ft at 8000 rpm. The six-speed transmission is paired with a wet-multiplate clutch and a #530 O-ring chain final drive. The frame is a double down tube full cradle with a box section aluminum swing arm, while the front suspension consists of telescopic forks and the rear suspension is dual shocks with a swinging arm. The dual front brakes and single rear brake are 260mm discs. The GPz 550 has a seat height of 800mm, ground clearance of 147mm, and wet weight of 210kg. It has a fuel capacity of 15 litres with an average consumption of 46 mpg. The bike can reach a top speed of 191.5 km/h (119 mph) and can do a standing quarter-mile in 13.0 seconds at 102 mph.
Technical specifications:
Make Model: Kawasaki GPz 550 / Z 550GP
| Year | 1981 – 82 |
|---|---|
| Engine | Four stroke, transverse four cylinder, DOHC, 2 valve per cylinder. |
| Capacity | 553 cc / 33.7 cu-in |
| Bore x Stroke | 58 x 52.4 mm |
| Cooling System | Air cooled |
| Compression Ratio | 10.0:1 |
| Induction | 4x 22mm Teikei constant vacuum – main jets #94 |
| Ignition | CDI |
| Starting | Electric |
| Max Power | 58 hp / 42.3 Nm @ 9000 rpm |
| Max Torque | 35.5 lb-ft / 48.1 Nm @ 8000 rpm |
| Clutch | Wet- multiplate |
| Transmission | 6 Speed |
| Final Drive | #530 O-ring chain |
| Frame | Double down tube, full cradle, Box section aluminum swing arm |
| Front Suspension | Telescopic forks |
| Front Wheel Travel | 165 mm / 6.4 in |
| Rear Suspension | Dual shocks, Swinging arm |
| Rear Wheel Travel | 100 mm / 3.9 in |
| Front Brakes | 2X 260mm disc |
| Rear Brakes | Single 260mm disc |
| Front Tyre | 3.25 H19 |
| Rear Tyre | 3.75 H18 |
| Seat Height | 800 mm / 31.6 in |
| Ground Clearance | 147 mm / 5.8 in |
| Wet Weight | 210 kg / 461 lbs |
| Fuel Capacity | 15 Litres / 3.9 US gal |
| Consumption average | 46 mpg |
| Standing 1/4 Mile | 13.0 sec / 102 mph |
| Top Speed | 191.5 km/h / 119 mph |
