Kawasaki Z 250FT (1978-79) vs Kawasaki Z 250FS (1979-80) vs Kawasaki Z 1000LTD (1979-80) vs Kawasaki Z 400LTD (1979-80) vs Kawasaki GPz 750R Ninja / ZX 750R (1985)
Comparison technical specifications
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| Make: | Kawasaki | Kawasaki | Kawasaki | Kawasaki | Kawasaki |
| Model: | Z 250FT | Z 250FS | Z 1000LTD | Z 400LTD | GPz 750R Ninja / ZX 750R |
| Years: | 1978-79 | 1979-80 | 1979-80 | 1979-80 | 1985 |
| Engine: | Four stroke, parallel twin, SOHC, 2 valve per cylinder | Four stroke, parallel twin, SOHC, 2 valve per cylinder | Four stroke, transverse four cylinder, DOHC, 2 Valve per cylinder. | Four stroke, parallel twin cylinder, SOHC, 2 Valve per cylinder. | Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder. |
| Capacity: | 248 cc / 15.1 cub in | 248 cc / 15.1 cub in | 1015 cc / 61.9 cu-in | 398 cc / 24.2 cu-in | 746 cc / 45.6 cu-in |
| Bore x Stroke: | 55 х 52.4 mm | 70 x 64 mm | 69.4 х 66 mm | 64 х 62 mm | 70.0 x 48.6 mm |
| Cooling System: | Air cooled | Air cooled | Air cooled | Air cooled | Liquid cooled |
| Compression Ratio: | 10.0:1 | 8.9:1 | 8.6:1 | 9.4:1 | 10.5:1 |
| Induction: | 2 x 32mm Keihin carburetors | 2 x 26mm Keihin carburetors | 4x 34mm Mikuni carburetors | 2x Keihin CV32 6caburetor | 4x 34mm Mikuni carburetors |
| Ignition: | CDI | Battery and coil | CDI | Battery & coil | Transistorised, electronic advance |
| Starting: | Electric | Electric | Electric | Electric & kick | Electric |
| Max Power: | 20.1 kW / 27 hp @ 10000 rpm | 14.2 kW / 19 hp @ 8 000 rpm | 86 hp / 62.8 kW @ 8500 rpm | 36 hp / 26.8 kW @ 8500 rpm | 92 hp / 67.2 kW @ 10000 rpm |
| Max Torque: | 20.6 Nm / 21 kgf-m /15.2 lb-ft @ 8500 rpm | 18 Nm / 1.8 kgf-m / 12.9 lb-ft @ 7 000 rpm | 83.2 Nm / 61.4 lb-ft @ 6500 rpm | 3.3 kgf-m / 23.8 lb-ft @ 7500 rpm | 7.2 kg-m / 52 lb-ft @ 8500 rpm |
| Transmission: | 6 Speed | 5 Speed | 5 Speed | 5 Speed | 6 Speed |
| Final Drive: | Chain | Chain | Chain | Chain | Chain |
| Front Suspension: | Air assisted telescopic forks, | Telescopic fork, air assisted | Telehydraulic forks | Telescopic forks | Air assisted forks, 160mm wheel travel. |
| Rear Suspension: | Spring preload adjustable | Swing arm 5-way adjustable spring preload | Swinging arm forks with adjustable shocks. | Dual shocks | Single shock swinging arm, 109mm wheel travel. |
| Front Brakes: | Single disc | Drum | 2x discs | Single disc | 2x 270mm discs |
| Rear Brakes: | Drum | Drum | Single disc | Drum | Single 256mm disc |
| Front Tyre: | 3.00-18 | 3.00-18 | 3.25 H19 | 3.25-18 | 120/80-16 |
| Rear Tyre: | 3.50-18 | 3.50-18 | 130/90 H16 | 130/90-16 | 130/80-18 |
| Dry Weight: | 153 kg / 337 lbs | 132 kg / 291 lbs | 249 kg / 549 lbs | 170 kg / 374.7 lbs | 228 kg / 502.5 lbs |
| Fuel Capacity: | 13.5 Litres / 3.6 US gal | 9.1 Litres / 2.4 US gal | 13 Litres / 3.5 US gal | 12 Litres / 3.1 US gal | 22 Litres / 5.8 US gal |