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How A Carburetor Works

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Published: November 30, 2006

Carburetors are extremely vital to the engine; whether it is the engine of a road vehicle or the engine of small machinery like a lawn mower or chainsaw, the carburetor is a key component.

With improvements in motor technology, fuel injectors have replaced carburetors in newer car models. However, they are present in older models. The role of a carburetor is to supply the engine with the correct amount of fuel mixed with air. Too much fuel in an engine floods it, and too little fuel burns out or stalls an engine.

Holley carburetors emerged from Pennsylvania in the early 1900s. The brothers Holley who started the business were motorcycle enthusiasts and began to build engines for their passion. This produced the Holley carburetor, designed to make their engines better. Holley carburetor and engine parts can easily be found online. Holley Performance Products has expanded its territory to include much more than the Holley carburetor throughout the years.

A four-stroke reciprocating internal-combustion engine is commonly found inside most cars and trucks. There are two different types of this kind of engine. The third type of engine, called a 2 cycle, or two-stroke engine is used in smaller machinery. A 2 cycle carburetor can be found in such small machinery as chainsaws, lawn equipment, mopeds and dirt bikes.

2 cycle engines are advantageous for small equipment because they are powerful, flexible and lightweight. They can be used at any angle, which is a boon of flexibility other types of engines lack. Due to their lightweight construction, 2 cycle carburetors pack a large punch for an engine with no valves, which is extremely beneficial for such things as lawn equipment.

The 4 barrel carburetor is different from the 2 cycle carburetor due to the number of cylinders it contains. Also, while the first carburetor is useful for small equipment, the 4 barrel is a tough carburetor designed for heavy-duty use by cars and trucks, whether they are gasoline or diesel powered. 4 barrel carburetors makes a vehicle run better if the right kind of 4 barrel is used for the vehicle. Before purchasing a 4 barrel to put in a vehicle it is best to figure out all of the specifications carefully, to avoid screwing up your vehicle beyond repair.

A carburetor provides the engine with the perfect mixture of fuel and air. It is an extremely useful and necessary device to the proper functioning of an engine. Even though many vehicles are phasing out the carburetor, there are many other pieces of machinery continuing to depend on this innovation of motor technology.


Sources:
How Stuff Works-Carburetors. 2006. HowstuffworksInc. http://howstuffworks.com. November 29, 2006.
Holley Performance Products. 2006. Holley Performance Products Inc. http://www.holley.com. Novmeber 29, 2006.