The horsepower (hp) of an engine is a unit of measurement used to calculate the amount of power produced by an engine. It is calculated by multiplying the torque (in pound-feet) by the engine's revolutions per minute (RPM) and then dividing the result by 5,252.
For a 199cc engine, the typical torque output is around 12.5 pound-feet and the maximum RPM is usually around 7,500. Using the formula above, we can calculate the horsepower of a 199cc engine as follows:
```
Horsepower = (Torque in pound-feet x RPM) / 5,252
Horsepower = (12.5 x 7,500) / 5,252
Horsepower = 187.5 / 5,252
Horsepower = 0.0357
```
Therefore, the horsepower of a 199cc engine is approximately 0.0357 horsepower, or about 12.5 horsepower (9.3 kW) at 7,500 RPM.
