The Yamaha XS650 Midnight Special motorcycle was produced in 1981 and features a four stroke, parallel twin cylinder engine with a capacity of 653cc. It has a compression ratio of 8.5:1 and a cooling system that is air-cooled. The lubrication system is a wet sump and it has 2 Mikuni BS34SU carburetors for induction. It has an ignition system that is battery-powered and features an induction coil. The motorcycle has a maximum power output of 53 horsepower at 7200 rpm and a maximum torque of 54 Nm at 5500 rpm. The transmission is a 5-speed with a final drive chain. The front suspension features telescopic forks, while the rear suspension has dual shock absorbers. Braking is handled by twin hydraulic discs at the front and a single hydraulic disc at the rear. The front tire is a 3.50S-19 while the rear tire is 130/90S-16. The motorcycle is 2130mm in length, 930mm in width, and 1225mm in height with a wheelbase of 1435mm. The ground clearance is 135mm and the seat height is 785mm. Dry weight is 210kg while the fuel capacity is 11.5 liters and oil capacity is 2.5 liters.
Technical specifications:
Make Model: Yamaha XS 650 Midnight Special
| Year | 1981 |
|---|---|
| Engine | Four stroke, parallel twin cylinder, SOHC, 2 valves per cylinder. |
| Capacity | 653 cc / 39.8 cu in |
| Bore x Stroke | 75 x 74 mm |
| Compression Ratio | 8.5:1 |
| Cooling System | Air cooled |
| Lubrication | Wet sump |
| Induction | 2 x Mikuni BS34SU carburetors |
| Ignition | Battery, induction coil |
| Starting | Electric and kick |
| Max Power | 39.5 kW / 53 hp @ 7200 rpm |
| Max Torque | 54 Nm / 5.5 kgf-m / 39.8 lb-ft @ 5500 rpm |
| Transmission | 5 Speed |
| Final Drive | Chain |
| Front Suspension | Telescopic forks |
| Rear Suspension | Dual shock absorbers |
| Front Brakes | Twin hydraulic discs, 267 mm |
| Rear Brakes | Single hydraulic disc, 267 mm |
| Front Tyre | 3.50S-19 |
| Rear Tyre | 130/90S-16 |
| Dimensions | Length: 2130 mm / 83.9″Width: 930 mm / 36.6″Height: 1225 mm / 48.2″ |
| Wheelbase | 1435 mm / 56.5″ |
| Ground Clearance | 135 mm / 5.3″ |
| Seat Height | 785 mm / 30.9″ |
| Dry Weight | 210 kg / 463 lbs |
| Fuel Capacity | 11.5 Litres / 3.0 US gal |
| Oil Capacity | 2.5 Litres / 2.6 US qts |
