Yamaha XS 650 (XS-2) (1972) vs Honda CBX 1000 Pro-Link (1981) vs Kawasaki GPz 400S (1986-87)
Comparison technical specifications
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| Make: | Yamaha | Honda | Kawasaki |
| Model: | XS 650 (XS-2) | CBX 1000 Pro-Link | GPz 400S |
| Years: | 1972 | 1981 | 1986-87 |
| Engine: | Four stroke, parallel twin cylinder, SOHC, 2 valves per cylinder. | Four stroke, transverse six cylinder. DOHC, 4 valves per cylinder | Four stroke, parallel twin cylinder, DOHC, 4 valve per cylinder. |
| Capacity: | 653 cc / 39.8 cu in | 1047 cc / 63.9 cu-in | 399 cc / 24.3 cu-in |
| Bore x Stroke: | 75 x 74 mm | 64.5 x 53.4 mm | 70 x 51 mm |
| Compression Ratio: | 8.4:1 | 9.3:1 | 10.7:1 |
| Cooling System: | Air cooled | Air cooled | Liquid cooled |
| Induction: | 2 x Mikuni BS38 carburetors | 6x 28mm Keihin carburetors | 4x Kelhin CVM30 carburetors |
| Ignition: | Battery, induction coil | Electronic | CDI |
| Starting: | Kick | Electric | Electric |
| Max Power: | 39.5 kW / 53 hp @ 7200 rpm | 98 hp / 72.9 kW @ 9000 rpm | 50 hp / 36.5 kW @ 10500 rpm |
| Max Torque: | 54 Nm / 5.5 kgf-m / 39.8 lb-ft @ 6800 rpm | 83.4 Nm / 61.5 lb-ft @ 7500 rpm | 3.6 kgf-m / 26 lb-ft @ 9000 rpm |
| Transmission: | 5 Speed | 5 Speed | 6 Speed |
| Final Drive: | Chain | Chain | Chain |
| Front Suspension: | Telescopic forks | Air assisted fork | Telescopic forks |
| Rear Suspension: | Dual shock absorbers | Pro link adjustable single shock 3-way rebound | Swing arm |
| Front Brakes: | Single disc | 2x 276mm discs | Single disc |
| Rear Brakes: | Drum | Single 296mm disc | Single drum |
| Front Tyre: | 3.50-19 | 3.50-19 | 100/90-16 |
| Rear Tyre: | 4.00-18 | 130/90-18 | 120/90-16 |
| Dry Weight: | 185 kg / 408 lbs | 277 kg / 600 lbs | 169 kg / 372.5 lbs |
| Fuel Capacity: | 12.5 Litres / 3.3 US gal | 22 Litres / 5.8 US gal | 15 Litres / 3.9 US gal |