Yamaha XS 650 - 1981 Specifications and Reviews
   	
		  
	
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| Category | Sport touring | 
| Year | 1981 | 
| Model | Yamaha XS 650 | 
| Engine and Transmission Specifications | 
| Transmission typefinal drive | Chain | 
| Gearbox | 5-speed | 
| Cooling system | Air | 
| Fuel control | OHC | 
| Valves per cylinder | 2 | 
| Bore x stroke | 75.0 x 74.0 mm (3.0 x 2.9 inches) | 
| Compression | 8.4:1 | 
| Power | 50.00 | 
| Stroke | 4 | 
| Engine type | Twin | 
| Capacity: | 654.00 ccm (39.91 cubic inches) | 
|  | 
| Physical measures and capacities | 
| Weight incl. oil, gas, etc | 225.0 kg (496.0 pounds) | 
| Yamaha XS 650 dimensions and frame | 
| Rear brakes | Expanding brake | 
| Front brakes | Dual disc | 
| Rear tyre dimensions | 4.00-18 | 
| Front tyre dimensions | 3.25-19 | 
| Speed and acceleration | 
| Top speed | 171.0 km/h (106.3 mph) | 
| Other specs | 
| Fuel capacity | 15.00 litres (3.96 gallons) | 
 
							 							
										
					
					 
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