Yamaha XS 250 DOHC (1984-) vs Kawasaki Z 650 50th Anniversary (2022) vs Yamaha FZ-S FI V 3.0 (2019)
Comparison technical specifications
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| Make: | Yamaha | Kawasaki | Yamaha |
| Model: | XS 250 DOHC | Z 650 50th Anniversary | FZ-S FI V 3.0 |
| Years: | 1984- | 2022 | 2019 |
| Engine: | Four stroke, 180° parallel twin, DOHC, 2 valves per cylinder | Four stroke, parallel twin cylinder, DOHC, 4 valves per cylinder | Four stroke, single cylinder, SOHC, 2 valve |
| Capacity: | 248 cc / 15.2 cu-in | 649 cc / 39.65 cu-in | 149cc / 9.09 cu-in |
| Bore x Stroke: | 56 х 50.6 mm | 83 x 60 mm | 57.3 × 57.9 mm |
| Cooling System: | Air cooled | Liquid cooled | Air cooled |
| Compression Ratio: | 10.1:1 | 10.8:1 | 9.5:1 |
| Lubrication: | Wet sump | Wet sump | Wet sump |
| Induction: | 2x 32mm Mikuni carburetors | DFI® with Keihin 36mm Keihin throttle bodies | Fuel Injection |
| Ignition: | Coil and cb | TCBI with electronic advance | TCI |
| Starting: | Kick | Electric | Electric |
| Max Power: | 30 hp / 22.3 kW @ 10000 rpm | 50.2 kW / 67.3 hp | kW / 13.2 hp @ 8000 rpm |
| Max Torque: | 2.2 kgf-m / 15.2 lb-ft @ 8500 rpm | 65.7 Nm / 48.5 lb-ft @ 6500 rpm | 12.8 Nm / lb-ft @ 6000 rpm |
| Clutch: | Wet multiplate | Wet multi-disc, manual | Wet, multiple disc |
| Transmission: | 6 Speed | 6 Speed | 5 Speed |
| Final Drive: | Chain | Sealed chain | Chain |
| Frame: | Duplex cradle | Trellis, high-tensile steel | Diamond |
| Front Suspension: | Telescopic forks | 41 mm hydraulic telescopic fork | Telescopic fork |
| Rear Suspension: | Dual shocks, swing arm, 5-position preload adjustable | Horizontal Back-link with adjustable preload swingarm | Swingarm with monoshock |
| Front Brakes: | Single 267mm disc | 2x 300mm petal-style discs, 2 piston calipers | Single 257mm disc 2 piston caliper, single channel ABS |
| Rear Brakes: | 178mm Drum | Single 220mm petal-style disc | Single disc 1 piston caliper |
| Front Tyre: | 3.00-18 | 120/70 ZR17 | 100/80-17 |
| Rear Tyre: | 3.50-18 | 160/60 ZR7 | 140/60-R17 |
| Wheelbase: | 1359 mm / 53.5 in | 1410 mm / 55.5 in | 1330 mm / 52.3 in |
| Seat Height: | 810 mm / 31.8 in | 790 mm / 31.1 in | 790 mm / 31.1 in |
| Wet Weight: | 174 kg / 392.4 lbs | 187 kg / 412.3 lbs | 137 kg / 302 lbs |
| Fuel Capacity: | 14 Litres / 3.7 US gal | 15 Litres / 4.0 US gal | 12 Litres / 3.17 US gal |