How To Clean Lawn Mower Carb – The Ultimate Guide

How to Clean Lawn Mower Carb – The Ultimate Guide

If you’re a lawn mower owner, you know the importance of keeping your machine in good condition. One of the most important things you can do is to clean the carburetor. In this guide, we’ll show you how to clean lawn mower carb in easy steps.

What is a Carburetor?

A carburetor is a mechanical device that mixes air and fuel in an internal combustion engine. It’s an essential part of a lawn mower’s engine, and it needs to be cleaned regularly to ensure that your machine runs smoothly.

Why Do You Need to Clean Your Lawn Mower Carb?

Over time, dirt, debris, and other contaminants can build up in your lawn mower’s carburetor. This can cause your machine to run poorly or not at all. Cleaning your carburetor can help to remove these contaminants and keep your lawn mower running like new.

What You’ll Need

Before you get started, you’ll need a few things:

  • Carburetor cleaner
  • Clean rags
  • Phillips screwdriver
  • Bowl or container
  • Wrench

How to Clean Lawn Mower Carb – Step by Step Guide

Step 1: Turn off the Engine

Before you start cleaning your carburetor, make sure your lawn mower is turned off and the engine is cool. This will help to prevent any accidents. Remove the spark plug wire to ensure that the engine won’t accidentally start.

Step 2: Locate the Carburetor

The carburetor is usually located near the engine. You can find it by following the fuel line from the gas tank to the engine. Once you’ve located the carburetor, remove the air filter cover and air filter to access the carburetor.

Step 3: Remove the Carburetor

Using a wrench, remove the bolts that hold the carburetor in place. Be careful not to damage any wires or hoses that may be connected to the carburetor. Once you’ve removed the bolts, carefully remove the carburetor from the engine.

Step 4: Disassemble the Carburetor

Using a Phillips screwdriver, carefully remove the screws that hold the carburetor together. Be sure to keep track of where each screw goes, as they may be different sizes. Once you’ve removed the screws, carefully disassemble the carburetor.

Step 5: Clean the Carburetor with Carburetor Cleaner

Spray the carburetor cleaner onto the carburetor parts and use a clean rag to wipe away any dirt or debris. Be sure to clean each part thoroughly, including the jets and the float bowl.

Step 6: Reassemble the Carburetor

Once you’ve cleaned each part, carefully reassemble the carburetor. Be sure to put each screw back in its correct place. Once you’ve reassembled the carburetor, you’re ready to put it back on the lawn mower.

Step 7: Reinstall the Carburetor

Carefully reinstall the carburetor onto the engine, making sure to reconnect any wires or hoses that may be attached. Use a wrench to tighten the bolts that hold the carburetor in place.

Step 8: Replace the Air Filter and Cover

Once the carburetor is back in place, replace the air filter and cover. Be sure to tighten any screws or bolts that hold them in place.

Step 9: Reconnect the Spark Plug Wire

Finally, reconnect the spark plug wire to the spark plug. Your lawn mower carburetor is now clean and ready to use!


Q: How often should I clean my lawn mower carburetor?

A: It’s recommended that you clean your lawn mower carburetor at least once a year, or more often if you use your lawn mower frequently.

Q: Can I clean my lawn mower carburetor without removing it?

A: It’s possible to clean your lawn mower carburetor without removing it, but it’s not recommended. You may not be able to clean all the parts properly, and you risk damaging other parts of the engine.

Q: Can I use any type of carburetor cleaner?

A: It’s important to use a carburetor cleaner that is specifically designed for small engines. Using the wrong type of cleaner can damage the carburetor and other parts of the engine.


Cleaning your lawn mower carburetor is an important part of maintaining your machine. By following these simple steps, you can keep your lawn mower running smoothly and efficiently for years to come.