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					Technical specifications
					
				 | 
			
				| Model: | 650 Tornado S | 
			
				| Years: | 1973-76 | 
			
			
					
						| 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 |