How To Rebuild A Carburetor

Carburetors are an essential part of an engine’s fuel system. They mix fuel and air before it enters the engine, which is necessary for the engine to run properly. Over time, carburetors can become worn and dirty, which can cause them to malfunction. In this article, we will discuss how to rebuild a carburetor to keep your engine running smoothly.

What You Will Need

Before we get started, let’s go over the tools and supplies you will need to rebuild a carburetor. You will need a carburetor rebuild kit, which includes gaskets, o-rings, and other small parts. You will also need a carburetor cleaner, a small brush, and a soft cloth. Additionally, you will need a set of screwdrivers, pliers, and a wrench.

Removing the Carburetor

The first step in rebuilding a carburetor is to remove it from the engine. To do this, you will need to locate the carburetor and disconnect the fuel lines, vacuum lines, and electrical connections. Once everything is disconnected, you can remove the carburetor from the engine.

Disassembling the Carburetor

With the carburetor removed from the engine, you can now begin to disassemble it. Start by removing the throttle linkage and any other external parts. Then, remove the screws or bolts that hold the carburetor together. You should now be able to separate the carburetor into its individual components.

Cleaning the Carburetor

Now that the carburetor is disassembled, it’s time to clean it. Use a carburetor cleaner and a small brush to clean all of the parts. Pay special attention to the small passages and jets, as these can become clogged with dirt and debris. Once everything is clean, dry the parts with a soft cloth.

Replacing the Parts

With the carburetor clean, you can now begin to replace the worn or damaged parts. Use the carburetor rebuild kit to replace the gaskets, o-rings, and other small parts. Make sure to follow the instructions included with the kit to ensure that everything is installed correctly.

Reassembling the Carburetor

Once all of the new parts are installed, it’s time to reassemble the carburetor. Start by putting the individual components back together, following the reverse order of disassembly. Make sure to tighten all screws and bolts to the correct torque specifications.

Installing the Carburetor

With the carburetor reassembled, you can now install it back onto the engine. Reconnect the fuel lines, vacuum lines, and electrical connections. Make sure everything is tight and secure before starting the engine.

Testing the Carburetor

Once the carburetor is installed, you can now test it to ensure that it’s working properly. Start the engine and let it idle for a few minutes. Then, rev the engine and listen for any abnormal sounds. If everything sounds good, you can take the car for a test drive.


Q: How often should I rebuild my carburetor?

A: It’s a good idea to rebuild your carburetor every 2-3 years or whenever you notice any issues with the engine’s performance.

Q: Can I clean my carburetor without removing it from the engine?

A: It’s possible to clean your carburetor without removing it, but it’s not recommended. Removing the carburetor allows you to clean it more thoroughly and replace any worn parts.

Q: What are the signs of a bad carburetor?

A: Signs of a bad carburetor include engine stalling, rough idling, poor acceleration, and black smoke coming from the exhaust.


Rebuilding a carburetor may seem daunting, but with the right tools and a little patience, it’s a task that can be completed by most DIYers. By following the steps outlined in this article, you can keep your engine running smoothly and avoid costly repairs down the line. Remember to always follow the manufacturer’s instructions and safety guidelines when working on your engine.