Kawasaki GPz 400F / Z400GP (1983) vs Kawasaki VN 900 Vulcan Classic LT (2006-07)
Comparison technical specifications
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| Make: | Kawasaki | Kawasaki |
| Model: | GPz 400F / Z400GP | VN 900 Vulcan Classic LT |
| Years: | 1983 | 2006-07 |
| Engine: | Four stroke, transverse four cylinder, DOHC, 2 Valve per cylinder. | Four stroke V-Twin, SOHC, 4 valve per cylinder |
| Capacity: | 399 cc / 24.3 cu-in | 903 cc / 49 cu-in |
| Bore x Stroke: | 52 х 47mm | 88.0 x 74.2 mm |
| Cooling System: | Air cooled | Liquid cooled |
| Compression Ratio: | 9.5:1 | 9.5:1 |
| Induction: | 4 x 21mm Teir-Kei carburetors | Fuel injection: ø 34 mm x 2 with dual throttles |
| Ignition: | CDI | Digital |
| Starting: | Electric | Electric |
| Max Power: | 51 hp / 38 kW @ 11500 rpm | 37 kW / 50 hp @ 5700 rpm |
| Max Torque: | 34.3 Nm / 25.2 lb-ft @ 8500 rpm | 78 Nm / 8.0 kg-fm @ 3700 rpm |
| Transmission: | 6 Speed | 5 Speed |
| Final Drive: | Chain | Belt |
| Front Suspension: | Telescopic forks | 41mm telescopic fork with 7-way preload |
| Rear Suspension: | Swing arm | Uni-Trak with 7-way adjustable preload |
| Front Brakes: | Single 236mm disc | Single 300mm disc 2 piston caliper |
| Rear Brakes: | Single 140mm drum | Single 270mm disc 2 piston caliper |
| Front Tyre: | 90/90-19 | 130/90 -16 |
| Rear Tyre: | 110/90-18 | 180/70 -15 |
| Fuel Capacity: | 15 Litres / 3.9 US gal | 20 Litres / 5.3 US gal. |