How to Install the Fuel Line in the Gas Tank of a Weed Eater

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When something goes wrong with your weed eater, it can be tempting to just toss it and buy a new one. First of all, that's a waste of money. Second, that's bad for the environment. Reuse is the key to a healthy planet and a healthy budget. So if the fuel line on your weed eater stops working, first try and fix it yourself.

How to Install the Fuel Line in the Gas Tank of a Weed Eater
Image Credit: Sebastian Arning / EyeEm/EyeEm/GettyImages

Purpose of the Fuel Lines

It's common for fuel lines on your weed eater to degrade over time and break. Both the small fuel line and the large fuel line can be replaced even by a novice.

How do these fuel lines work? Think of a heart. One side pumps blood in and one side pumps blood out, to put it simply. The two fuel lines on a weed eater work in a similar manner. The small fuel line suctions gas into your carburetor from the gas tank. The large fuel line returns any excess or unused gas back into the gas tank.

Follow the listed steps below and watch the video to replace the large and small fuel lines on your weed eater. Make sure to wear gloves and safety goggles before you get started.

Replacing Fuel Lines

First, you need to remove the spark plug wire from the spark plug. Make sure to keep the wire at a distance so that it cannot make any contact with the spark plug. Next, pour the gas from the weed eater's fuel tank into a gas can. Use a funnel to prevent spills. Using a pair of needle-nose pliers, pull the two fuel lines off the carburetor. Oil may spill during this step. Make sure and wipe it away with a cloth before you continue.

Locate the two screws on the gas tank and remove them, then remove the gas tank from the weed eater. Now that the gas tank is removed, you should be able to easily remove the two gas lines. Take care and do this slowly.

Throw the damaged fuel line in the trash and replace it with a new one, which you can purchase one at your local hardware store for your weed eater's model. Next, insert the other end of the new fuel line into the gas tank. Put the line into the same hole from which you removed the damaged one.

Push the new line through the small hole and out the large hole to the lid for the gas tank. You may need the help of the needle nose pliers again for this task. Reattach the gas tank to the weed eater, then the fuel lines to the carburetor. Last, reattach the spark plug wire.

Take It for a Test Drive

It's time to take your repaired weed eater for a test drive. If you followed all of the steps correctly, it should work like a charm. If not, it may be time to ask an expert for help or purchase a new weed eater.


Heather Skyler is a journalist and novelist who has written for wide variety of publications, including, The New York Times and SKY magazine.

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