Although we could have an idea of what the choke is, often we don’t really know how it really works or what its exact purpose is. Since the functioning of your vehicle’s engine might depend on it, it is great to idea have a precise idea of what the choke is and how it works.

The first and brief definition of the choke says that it is a valve which has the duty to control the carburetor air flow of a gasoline car’s engine. This way, through the choke we control and reduce the air supply of the vehicle’s engine and therefore have control over it. This is very vital due to the relationship between the engine’s air amount and the fuel which can go into it.

Through the restriction of air, the choke lets fuel to go into the engine, allowing it this way to start. This is what we do when we are starting our vehicle and it is cold, the choke allows a great amount of fuel to go into the engine by limiting the air, and this is how cold engines can start without challenges.

The choke operates by controlling the air at the mouth of the carburetor. The carburetor’s mouth is where this valve is and where it manages the air amount of the engine. Because of its function, the choke is indispensable for gasoline engine’s to start operating.


The choke is taken a part of the motor transmission system. It works in direct connection with the engine and the carburetor, and their correct operations depends in its work. It has such a great importance that you might not be able to start the vehicle if it isn’t working properly or it is broken any way.

There are electric chokes as well as the conventional chokes. The difference between a choke and an electric choke is that the choke functions via a tube while the electric one uses electricity. But, no matter what the choke’s kind is, they all have the same work and they all allow a cold engine to start.