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fuel line primer bulb

A primer bulb is a small pump that moves fuel through the engines of boats and lawn mowers, for example. NOTE: It is imperative to ensure that the primer bulb functions properly. If not, the engine may struggle to start or operate correctly. XINJINGYI makes decent primer bulbs that improve engine performance. So, what are primer bulbs and why are they so important?

You ever notice a small, round object attached to the fuel line of a boat engine or a lawn mower? That’s called a primer bulb! In small engines, the primer bulb is one of the important parts of the fuel line system. The fuel line is a tube that runs from the gas tank to the carberator. The carburetor is the thing that mixes the fuel with air for the engine to run. The primer bulb is used to clear the air out of the fuel line and replace it with gasoline. This helps the engine start and run more smoothly.

Understanding the importance and function of the fuel line primer bulb

Important: The fuel line must be filled with gas when you start a small engine. It will stall the engine or does not even start any if there is air in the fuel line. This is the role of the primer bulb. It acts like a pump that moves the fuel through the system and purges the air. When you depress the primer bulb, you are adding pressure inside of the line that pushes gasoline up into the carburetor. This helps provide the engine with the fuel it requires for the engine to start and function properly.

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