| General information | |
|---|---|
| Model: | Yamaha XS 650 |
| Year: | 1979 |
| Category: | Classic |
| Engine and transmission | |
| Displacement: | 654.00 ccm (39.91 cubic inches) |
| Engine type: | Twin |
| Stroke: | 4 |
| Power: | 50.00 HP (36.5 kW)) @ 6800 RPM |
| Compression: | 8.4:1 |
| Bore x Stroke: | 75.0 x 74.0 mm (3.0 x 2.9 inches) |
| Valves per cylinder: | 2 |
| Fuel control: | OHC |
| Cooling system: | Air |
| Gearbox: | 5-speed |
| Transmission type final drive: | Chain |
| Physical measurements | |
| Weight incl. oil, gas, etc: | 227.0 kg (500.4 pounds) |
| Chassis and dimensions | |
| Front tyre dimensions: | 3.25-19 |
| Rear tyre dimensions: | 4.00-18 |
| Front brakes: | Dual disc |
| Rear brakes: | Expanding brake |
| Speed and acceleration | |
| Top speed: | 181.0 km/h (112.5 mph) |
| Other specifications | |
| Fuel capacity: | 15.00 litres (3.96 gallons) |
 | |
