Carburettor

Before the engine would start, I had to adjust the carburettor.

Both affect the performance of the machine, especially the carburettors, and both are important to the final appearance of the model.

In a carburettor the pressure drop (or viewed another way, suction) is used to draw fuel out of a reservoir, usually via a jet, and into the venturi to mix with the air flowing through it.

For a large part of the twentieth century the majority of light vehicles used petrol engines that were equipped with a carburettor.