Repetitive jerks from your mower’s manual start can cause annoying engine sputter. Or maybe the engine starts, seems to run, and then stops running. It is also important to have the basic knowledge on how to clean a carburetor on a lawn mower without removing it? Your mower foils your plans to mow your lawn for the first time of the season. This lack of cooperation often indicates dirt on the carburetor. 

Furthermore, carburetors mix air and gasoline in the correct amounts to create a fuel mixture. They also create a perfect combination to start the engine and control its speed. Cleaning the carburetor of your large walk behind mower will have you mowing before you know it and should be part of your regular maintenance. 

Follow the simple steps on how to clean a carburetor on a lawn mower without removing it and get a neat and clean lawn for a longer time span.

How to clean a carburetor on a lawn mower without removing it

What to do next steps to clean a carburetor?

Bring the mower to a flat surface and disconnect the fuel line. Find the nut under the bottom of the mower carburetor and twist it off. Leave it in a safe place for when you need to put it back. Therefore, when you remove the bottom of the carburetor, a little gasoline may drain, so put newspaper underneath to absorb it.

How to clean up the debris?

Spray carb cleaner into the bottom cup of the carb, including the plastic needle valve. Clean up all sticky substances and debris. Additionally, if you left gasoline in the walk behind mower over the winter, it will have turned to varnish, caking the inside of the carburetor. Removing all spoiled gasoline, debris, and dust will help the engine start more quickly.

Moreover, spray cleaner inside the remaining parts of the mower carburetor. Clean them with a cloth, removing all the varnish and viscous substances. Check that, all the holes are clean and use a wire to clean the plugged jets made of bronze. Some people find it easier to do this job using compressed air.

How to clean a carburetor on a lawn mower without removing it

What are the final steps to clean a carburetor of a lawn mower?

Reassemble the carburetor of a mower, making sure to position each part correctly and tightening the bolts securely. Finish the assembly by replacing the nut on the base of the carburetor cup.

Plus; reconnect the fuel line, prime the engine, and give the manual starter a good pull. The mower should start right away. If it does not, the fuel line may be clogged or the fuel / air mixture may not be correct.

Locate the carburetor air adjustment valve. Spin it to the right as far as it will go, then spin it two turns to the left. This valve helps control the mixture of air and gasoline. Try pulling the starter again to see if the engine starts. Turn the valve a little to the left to get the engine to work properly. 

How to clean a carburetor on a lawn mower without removing it

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Riding Mower offers expert mowing tips and tricks for keeping your garden or yard healthy. Find out the reviews, comparisons, and buying guides for all kinds of electric, gas, or riding lawn mowers.

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