How to unclog a carburetor?

How to unclog a carburetor?


Carburetors are an essential component of many internal combustion engines, including those found in cars, motorcycles, and small engines. Over time, carburetors can become clogged with dirt, debris, or varnish, leading to poor engine performance. Unclogging a carburetor is a relatively simple process that can be done with a few basic tools and some patience. In this article, we will explore the steps involved in unclogging a carburetor and getting your engine running smoothly again.

Gather the necessary tools

Before starting the carburetor unclogging process, it’s important to gather the necessary tools. Here are the tools you will need:

– Screwdrivers: Depending on the type of carburetor, you may need a flathead or Phillips screwdriver to remove the screws holding the carburetor in place.

– Carburetor cleaner: A can of carburetor cleaner is essential for removing the clogs and deposits from the carburetor’s internal passages.

– Compressed air: Compressed air can be used to blow out any remaining debris after cleaning the carburetor.

– Safety goggles and gloves: It’s always a good idea to protect your eyes and hands while working with chemicals and compressed air.

Remove the carburetor

To access and clean the carburetor, it needs to be removed from the engine. The exact process may vary depending on the engine and carburetor type, but generally, the following steps should be followed:

1. Disconnect the fuel line: Locate the fuel line connected to the carburetor and disconnect it. Be prepared for some fuel spillage, so have a container or rag ready to catch any fuel.

2. Remove the air filter: If your engine has an air filter, remove it to gain better access to the carburetor.

3. Disconnect the throttle linkage: The throttle linkage connects the carburetor to the engine’s throttle. Disconnect it by removing any retaining clips or screws.

4. Remove the carburetor: Depending on the carburetor’s mounting, you may need to remove screws or bolts holding it in place. Carefully lift the carburetor away from the engine.

Clean the carburetor

Once the carburetor is removed, it’s time to clean it thoroughly. Follow these steps to ensure a proper cleaning:

1. Disassemble the carburetor: Carefully disassemble the carburetor, taking note of the order and position of each component. Use a screwdriver to remove any screws or clips holding the carburetor together.

2. Soak the carburetor in cleaner: Place the disassembled carburetor components in a container filled with carburetor cleaner. Make sure all the parts are fully submerged and let them soak for the recommended time specified on the cleaner’s instructions.

3. Clean the small passages: After soaking, use a small brush or a piece of wire to clean the small passages and jets in the carburetor. Be gentle to avoid damaging any delicate parts.

4. Rinse and dry the carburetor: Once the cleaning is complete, rinse all the carburetor components with clean water to remove any residual cleaner. Then, dry the parts thoroughly using compressed air or by allowing them to air dry.

Reassemble and reinstall the carburetor

After cleaning, it’s time to reassemble the carburetor and reinstall it back into the engine. Follow these steps:

1. Reassemble the carburetor: Carefully put all the cleaned components back together in the correct order and position. Ensure that all gaskets and seals are in place.

2. Reinstall the carburetor: Align the carburetor with the mounting holes on the engine and secure it in place using the screws or bolts removed earlier.

3. Reconnect the throttle linkage: Attach the throttle linkage back to the carburetor, ensuring it is properly connected and secure.

4. Reconnect the fuel line: Reattach the fuel line to the carburetor, ensuring it is tightly connected and free from any leaks.


Unclogging a carburetor is a relatively straightforward process that can greatly improve engine performance. By following the steps outlined in this article, you can effectively remove clogs and debris from your carburetor, allowing your engine to run smoothly once again.