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primer bulb fuel pump

(Opening) Have you ever encountered a "Primer Bulb"? It may seem like a highfalutin piece of equipment, but it actually gets small machines to run better and more efficiently. In this lesson, we will take a look at how and why primer bulb fuel pumps are so important for a small engine; how they work, how you can replace them when they go bad, and how to fix some common issues that may arise. Knowing such things can help you maintain and troubleshoot equipment as it gets older.

What is a primer bulb fuel pump? Primer bulb fuel pumps provide power to small engines that need help getting fuel to start. This function creates suction and provides lift, which pulls the fuel from the fuel tank and into the engine when needed. The primer bulb is simply a small rubber ball that can be pressed by hand. This tool works so with Built to fit in places around small carburetors that are tough to reach, a few presses of the bulb fills with gas and creates a suction effect. That is why it is referred to as a "primer" bulb, as it primes the engine with fuel to assist in starting.

Benefits of Using Primer Bulb Fuel Pumps in Small Engines

Examples of Primer Bulb Fuel Pumps for Small Engines The biggest advantage is they help start the engine much easier. Pressing the primer bulb pumps fuel into the carburetor. This makes it easier, especially when it’s cold outside or the engine has not been used in a long time, to start the engine.

A lot of times when an engine doesn't start right away it will crank over and the pistons will compress fuel but they don't have any fuel to compress. Hard starting makes the engine work much harder than necessary. Eventually, this additional work can cause issues and ruin the engine, which can be expensive to fix. To prevent engine failure, you should try to assist your engine to start properly with the help of a trimmer primer bulb.

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