Carburetor Explained

If you are running a car with petrol powered engine, then you have to think about the carburetor, the most important part of a petrol engine. Basically, it is a mixing device that aids air-fuel mixture to your engine. Basic construction of your carburetor contains float bowl, throttle body, and air horn as its main parts. Firstly, you have to understand the venturi clearly. It is not nothing but a narrow space through which the engine air passes to increase the velocity. It works by producing a partial vacuum in the device that is called the venturi vacuum. Actually, it creates pressure difference, which causes the fuel to be discharged from the nozzle and to be mixed with the air for combustion. Most interesting matter is that your vehicle’s carburetor requires a special fuel system to suit operating conditions. You may find any one of the following fuel systems in your vehicle to aid carburetor to change air-fuel ratio with varying conditions:

a. Main Metering System

b. Idle System c. Float System

d. Power System

e. Choke System

f. Accelerator-Pump System