| General information |
|---|
| Model: | Yamaha DS 7 |
| Year: | 1971 |
| Category: | Classic |
| Engine and transmission |
|---|
| Displacement: | 247.00 ccm (15.07 cubic inches) |
| Engine type: | Twin |
| Stroke: | 2 |
| Power: | 24.00 HP (17.5 kW)) @ 7500 RPM |
| Compression: | 7.1:1 |
| Bore x Stroke: | 54.0 x 54.0 mm (2.1 x 2.1 inches) |
| Fuel control: | Port control |
| Cooling system: | Air |
| Gearbox: | 5-speed |
Transmission type
final drive: | Chain |
| Physical measurements |
|---|
| Weight incl. oil, gas, etc: | 146.0 kg (321.9 pounds) |
| Chassis and dimensions |
|---|
| Front tyre dimensions: | 3.00-18 |
| Rear tyre dimensions: | 3.25-18 |
| Front brakes: | Expanding brake |
| Rear brakes: | Expanding brake |
| Speed and acceleration |
|---|
| Top speed: | 140.0 km/h (87.0 mph) |
| Other specifications |
|---|
| Fuel capacity: | 12.00 litres (3.17 gallons) |
