The Benelli 650 Tornado S2 was a motorcycle produced by Italian manufacturer Benelli from 1973 to 1974. It was powered by a parallel twin cylinder, four stroke engine with a capacity of 642.8 cc and a maximum power output of 52 horsepower. The engine was cooled by air and featured two Dell’Orto VHB 29 carbs and a compression ratio of 8.0:1. The bike had both electric and kick start options and a multiplate, wet clutch. The transmission was 5-speed and the final drive was a chain. The front suspension was Marzocchi tele-hydraulic forks and the rear suspension was a swinging arm with adjustable shocks. Braking was done by drum brakes, with 4 leading shoes in the front and drums in the rear. The bike had a dry weight of 210 kg and a fuel capacity of 17 L. The front and rear tires measured 3.50-18 and 4.00-18 respectively.
Technical specifications:
Make Model: Benelli 650 Tornado S2
| Year | 1973 – 74 |
|---|---|
| Engine | Parallel twin cylinders, four stroke, OHV, 2 valves per cylinder |
| Capacity | 642.8 cc / 39.2 cu in |
| Bore x Stroke | 84 x 58 mm |
| Compression Ratio | 8.0:1 |
| Cooling System | Air cooled |
| Induction | 2 x Dell’Orto VHB 29 carbs |
| Starting | Electric and kick start |
| Max Power | 38.8 kW / 52 hp @ 7200 rpm |
| Clutch | Multiplate, wet |
| Transmission | 5 Speed |
| Final Drive | Chain |
| Front Suspension | Marzocchi tele-hydraulic forks |
| Rear Suspension | Swinging arm, adjustable shocks |
| Front Brakes | Drum, 4 leading shoe |
| Rear Brakes | Drum |
| Front Tyre | 3.50 -18 |
| Rear Tyre | 4.00 -18 |
| Dry Weight | 210 kg / 463 lbs |
| Fuel Capacity | 17 L / 4.5 US gal |
