Yamaha XS 400 (1977-78) vs Yamaha XV 250 Virago (1997-99)
Comparison technical specifications
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| Make: | Yamaha | Yamaha |
| Model: | XS 400 | XV 250 Virago |
| Years: | 1977-78 | 1997-99 |
| Engine: | Four stroke, 180° parallel twin, SOHC, 2 valves per cylinder | Four stroke, V-Twin cylinder, SOHC, 2 valve per cylinder |
| Capacity: | 392 cc / 23.9 cu-in | 249 cc / 15.2 cu-in |
| Bore x Stroke: | 69.0 x 52.4 mm | 49 x 66 mm |
| Cooling System: | Air cooled | Air cooled |
| Compression Ratio: | 9.2:1 | 10.0:1 |
| Induction: | 2x Mikuni BS32 carburetors | BDS26 Mikuni carburetor |
| Ignition: | Battery ignition - With contact breaker points | CDI |
| Starting: | Electric & kick | Electric |
| Max Power: | 36 hp / 26.8 kW @ 8100 rpm | 23 hp / 17.1 Kw @ 8000 rpm |
| Max Torque: | 3.3 kgf-m / 23.8 lb-ft @ 8000 rpm | 2.2 kgf-m / 15.9 lb-ft @ 6000 rpm |
| Transmission: | 6 Speed | 5 Speed |
| Final Drive: | Chain | Chain |
| Frame: | Tubular steel, semi-double cradle | Camshaft Valvetrain Configuration |
| Front Suspension: | Telescopic fork | Telescopic forks |
| Rear Suspension: | Dual shocks swing arm, preload adjustable | Dual shocks |
| Front Brakes: | Single disc | Single 282mm disc |
| Rear Brakes: | Drum | 130mm drum |
| Front Tyre: | 3.00-18 | 3.00-19 |
| Rear Tyre: | 3.50-18 | 130/90-15 |
| Wheelbase: | 1364 mm / 53.7 in | 1495 mm / 58.9 in |
| Seat Height: | 780 mm / 30.7 in | 685 mm / 27.0 in |
| Wet Weight: | 182 kg / 401 lbs | 145 kg / 319.6 lbs |
| Fuel Capacity: | 14 Litres / 3.7 US gal | 9.5 Liters / 2.5 US gal |