Yamaha R15S Engine and Transmission Technical Data
|
|
| Engine type - Number of cylinders: |
Single cylinder, four-stroke |
|
| Engine details: |
Variable valves actuation |
|
| Fuel system: |
Injection |
|
| Engine size - Displacement - Engine capacity: |
155.0 ccm (9.46 cubic inches) |
|
| Bore x Stroke: |
58.0 x 58.7 mm (2.3 x 2.3 inches) |
|
| Compression Ratio: |
11.6:1 |
|
| Number of valves per cylinder: |
4 |
|
| Camshaft Valvetrain Configuration: |
Single Overhead Cams (SOHC) |
|
| Maximum power - Output - Horsepower: |
18.4 HP (13.4 kW)) @ 10000 RPM |
|
| Maximum torque: |
14.1 Nm (1.4 kgf-m or 10.4 ft.lbs) @ 7500 RPM |
|
| Engine Maximum RPM: |
- |
|
| Cooling system: |
Liquid |
|
| Lubrication system: |
Wet sump |
|
| Engine oil capacity: |
1.20 litres (1.27 US quarts) |
|
| Exhaust system: |
- |
|
| Gearbox: |
6-speed |
|
| Transmission type, final drive ratio: |
Chain (final drive) |
|
| Clutch type: |
Wet, multiple-disc coil spring assist and slipper clutch |
|
| Driveline: |
Constant mesh |
