Kawasaki Z 650 (1980-81) vs Suzuki GS 450E (1982)
Comparison technical specifications
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| Make: | Kawasaki | Suzuki |
| Model: | Z 650 | GS 450E |
| Years: | 1980-81 | 1982 |
| Engine: | Four stroke, transverse four cylinder, DOHC, 2 valves per cylinder | Four stroke, parallel twin cylinder, DOHC, 2 valves per cylinder. |
| Capacity: | 652 cc / 39.7 in | 448 cc / 27.3 cu in |
| Bore x Stroke: | 62 х 54 mm | 71 x 56.6 mm |
| Cooling System: | Air cooled | Air cooled |
| Compression Ratio: | 9.5:1 | 9.0:1 |
| Induction: | 4x 28mm Mikuni carburetors | 2 x 34 mm BS34SS Mikuni carburetors |
| Ignition: | CDI | Transistorized |
| Starting: | Electric & kick | Electric |
| Max Power: | 66 hp / 48.2 kW @ 8500 rpm | 32.8 kW / 44 hp @ 9500 rpm |
| Max Torque: | 5.8 kgf-m / 57 Nm @ 7000 rpm | 36.3 Nm / 3,7 kgf-m / 26.8 lb-ft @ 8000 rpm |
| Transmission: | 5 Speed | 6-Speed |
| Final Drive: | Chain | Chain |
| Front Suspension: | Telescopic hydraulic fork | 33mm Air assisted forks |
| Rear Suspension: | Swinging fork | Dual shocks |
| Front Brakes: | Single 275mm disc | Single 272 mm disc |
| Rear Brakes: | 180mm Drum | Drum |
| Front Tyre: | 3.25-19 | 3.00-18 |
| Rear Tyre: | 4.00-18 | 3.50-16 |
| Wet Weight: | 220 kg / 485.0 lbs | 181 kg / 399 lbs |
| Fuel Capacity: | 16.5 Litres / 4.3 US gal | 15 L / 4.0 US gal / 3.3 Imp gal |
| Consumption Average: | 16.8 km/lit | 4.3 L/100 km / 23.4 km/l / 55 US mpg / 66 Imp mpg |
| Standing ¼ Mile: | 13.8 sec | 13.9 sec / 147.1 km/h / 91.4 mph |
| Top Speed: | 186 km/h / 115.5 mph | 153 km/h / 95.3 mph |