Yamaha XS 250 Midnight Special (1981) vs Yamaha XV 750E (1981-82) vs Yamaha DT 250 (1981)
Comparison technical specifications
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| Make: | Yamaha | Yamaha | Yamaha |
| Model: | XS 250 Midnight Special | XV 750E | DT 250 |
| Years: | 1981 | 1981-82 | 1981 |
| Engine: | Four stroke, 180° parallel twin, SOHC, 2 valves per cylinder | Four stroke, 75°-V-Twin cylinder, SOHC. 2 valve per cylinder. | Two stroke, single cylinder |
| Capacity: | 248 cc / 15.2 cu-in | 748 cc / 45.6 cu-in | 246 cc / 15.0 cu-in |
| Bore x Stroke: | 55 х 52.4 mm | 83 x 69.2 mm | 70 x 64 mm |
| Cooling System: | Air cooled | Air cooled | Air cooled |
| Compression Ratio: | 9.3:1 | 8.7:1 | 6.8:1 |
| Induction: | 2x 32mm Mikuni carburetors | 34mm Keihin carburetors | Single 28mm Mikuni VM28SS |
| Ignition: | Coil and cb | CDI | External-rotor magneto; CDI; six-volt battery |
| Starting: | Kick | Electric | Kick |
| Max Power: | 26 hp / 20.1 kW @ 9500 rpm | 50.8 hp / 37.8 kW @ 7000 rpm | 17 hp 12.6 kW @ 6000 rpm |
| Max Torque: | 2.1 kgf-m / 15.2 lb-ft @ 8500 rpm | 5.4 kgf-m / 64.7 Nm @ 5750 rpm | 20.7 Nm / 15.3 lb-ft @ 5500 rpm |
| Transmission: | 6 Speed | 5 Speed | 5 Speed |
| Final Drive: | Chain | Shaft | Chain |
| Front Suspension: | Telescopic forks | 37mm Showa leading axle. adjustment for air pressure and rebound damping | Oil-damped, coil-spring fork with forward-mounted axle and |
| Rear Suspension: | Dual shocks, swing arm, 5-position preload adjustable | Monoshock single damper, adjustment for air pressure and rebound damping | DeCarbon-type, nitrogen-charged mono-shock producing |
| Front Brakes: | Single 267mm disc | 2x 267mm disc 2 piston calipers | Conical hub with drum brake |
| Rear Brakes: | 160mm Drum | Drum | Conical hub with rod-actuated drum brake |
| Front Tyre: | 3.00-18 | 3.50-19 | 3.00-21 |
| Rear Tyre: | 120/90 x 16 | 120/90-18 | 4.00-18 |
| Fuel Capacity: | 14 Litres / 3.7 US gal | 14.5 Litres / 3.8 US gal | 8.5 Litres / 2.2 gal |