Kawasaki Z 250FS (1981-82) vs Kawasaki GPX 600R Ninja / ZX 600R (1987-88)
Comparison technical specifications
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| Make: | Kawasaki | Kawasaki |
| Model: | Z 250FS | GPX 600R Ninja / ZX 600R |
| Years: | 1981-82 | 1987-88 |
| Engine: | Four stroke, parallel twin, SOHC, 2 valve per cylinder | Four stroke, transverse four cylinders, DOHC, 4 valve per cylinder |
| Capacity: | 248 cc / 15.1 cub in | 598 cc / 36.1 cu-in |
| Bore x Stroke: | 55 х 52.4 mm | 60 x 52.4 mm |
| Cooling System: | Air cooled | Liquid cooled |
| Compression Ratio: | 8.9:1 | 11.71 |
| Induction: | 2 x 32mm Keihin carburetors | 4x 32mm Keihin CV carburetors |
| Ignition: | Battery and coil | Digital |
| Starting: | Electric | Electric |
| Max Power: | 14.2 kW / 19 hp @ 8 000 rpm | 84 hp / 62 kW @ 11000 rpm |
| Max Torque: | 18 Nm / 1.8 kgf-m / 12.9 lb-ft @ 7 000 rpm | 42 ft-lb / 5.8kgf-m @ 9000 rpm |
| Transmission: | 5 Speed | 6 Speed |
| Final Drive: | Chain | Chain |
| Front Suspension: | Telescopic fork, air assisted | 38mm Telescopic with electronic anti-drive. |
| Rear Suspension: | Swing arm 5-way adjustable spring preload | Rising rate monoshock with adjustable preload and rebounding preload. |
| Front Brakes: | Drum | 2x 270mm discs |
| Rear Brakes: | Drum | Single 130mm disc |
| Front Tyre: | 3.00-18 | 110/80 V16 |
| Rear Tyre: | 3.50-18 | 130/90 V16 |
| Seat Height: | 737 mm / 29 in | 760 mm / 30.0 in |
| Dry Weight: | 132 kg / 291 lbs | 180 kg / 397 lbs |
| Fuel Capacity: | 9.1 Litres / 2.4 US gal | 19.5 Litres / 5.1 US gal |
| Top Speed: | 145 km/h / 90.1 mph | 226.8 km/h / 140.9 mph |