Troy Bilt lawn mower parts are durable and designed to last. One of the parts that are designed to last is the carburetor and vapor canister. The carburetor and vapor canister are responsible for supplying the engine with air and fuel. But, over time, the build-up can reduce the effectiveness of these components.

If you have a Troy Bilt riding mower that is having issues with idling or cutting out, the problem may be caused by a clogged carburetor.

A clogged carburetor can also cause your engine to stall while you are mowing. Cleaning the carburetor on your Troy Bilt lawn mower is a simple procedure that can help get your mower operational again. Here we will explain how you can clean the carburetor on your troy bilt lawn mower.

How to clean carburetor on Troy Bilt lawn mower, step by step:

  • Step 1: Try to start the lawn mower
  • Step 2: Check the Carburetor’s Gas
  • Step 3: Extract the Carburetor
  • Step 4: Confirm the Corrosion
  • Step 5: Put Carburetor on Workbench and Start the Rebuilt
  • Step 6: Clean the Mechanisms
  • Step 7: Reassemble the Mechanisms

How to Clean Carburetor on Troy Bilt Lawn Mower?

How to Clean Carburetor on Troy Bilt Lawn Mower?

Step 1: Try to start the lawn mower

You can use this as a quick test to see if the carburetor is clogged. If the mower will not start, the carburetor is a likely culprit. If the engine tries to start but sputters and dies, there is another issue with your mower that you will want to address.

While starting the engine, keep an ear out for unusual noises. If the engine runs poorly or emits excessive noise, it may be an indication that the carburetor needs to be cleaned.

If you can start the mower, but it dies quickly, the problem is not with the carburetor. Rather, the fuel is likely not getting to the carburetor.

In this case, check the fuel line for any kinks that may be blocking the flow of fuel. If the fuel is flowing freely, the problem may be a bad fuel pump.

Step 2: Check the Carburetor’s Gas

Before you begin the process of cleaning the carburetor, make sure that the gas in the tank is clean. Old fuel can clog a carburetor and cause poor performance. If you have fuel in the tank that is more than three months old, drain the tank and replace the fuel. If you do not wish to replace the fuel, use a fuel cleaner to make the old fuel usable again.

Step 3: Extract the Carburetor

If you have confirmed that you have fresh gas in the carburetor, the carburetor needs to come off the engine to clean it. You can use a wrench to loosen the clamp holding the carburetor to the engine. Once the carburetor is loose, remove the clamps holding the carburetor in place.

Then, pull the carburetor off the engine. If the carburetor is extremely clogged, you may have to apply pressure to break it loose.

Step 4: Confirm the Corrosion

If your carburetor came off the engine clean, there is no reason to worry. If the carburetor is completely caked in rust, you may need to clean the carburetor thoroughly and treat the metal with a corrosion inhibitor.

If you find that the carburetor has corrosion on it, you will need to thoroughly clean the carburetor before you can use it again.

Step 5: Put Carburetor on Workbench and Start the Rebuilt

Once the carburetor is clean, you can put it on the workbench and take a look at all the mechanisms inside it. You can use a small brush to get into the nooks and crannies of the carburetor and remove any remaining debris.

Once you have everything clean and inspected, it’s time to rebuild the carburetor.

Step 6: Clean the Mechanisms

While there are many different parts that comprise a carburetor, two of them are more likely to get clogged:

The float assembly and the needle and seat. Use a wire brush to brush off the float assembly and make sure the float pin is clean. The float assembly affects how much fuel is held in the carburetor.

 If it is clogged, the carburetor will not be able to hold the right amount of fuel and your mower will not run properly. Next, focus on the mechanisms that meter the fuel flow. The needle and the seat are normally rubber, and they can get clogged with debris. Use a small brush to clean these parts and make sure that they are not clogged.

Step 7: Reassemble the Mechanisms

When you have all the mechanisms clean, you can reassemble the carburetor. Put the float assembly back in the carburetor and make sure that the needle and seat are installed correctly. You can test the carburetor to make sure it is working properly by adding fuel to the carburetor and trying to start the engine.

If the engine starts and runs smoothly, you have successfully cleaned the carburetor and you can put it back on the mower. When you are finished cleaning the carburetor on your Troy Bilt mower, make sure to keep it clean and free of debris to keep your mower working at its best.

Related Guide: How Does Flail Mower Work?

Can You Clean the Carburetor without Removing it?

Yes, you can clean the carburetor without removing it. The carburetor of a lawn mower is one of the most important parts of your machine.

It is responsible for the fuel injection, engine running, and exhaust system. Therefore, it needs to be in perfect work condition at all times.

This can be cleaned with simple methods. First, remove any snow or ice that may have formed in the area. Next, use a pipe cleaner or a similar tool to clear out any debris. Finally, use an oil-based solvent to remove any gunk stuck inside the carburetor. You can also use a solution of dish soap and water. 

It will clean out any excess dirt, dust, or debris that may have accumulated in the carburetor and pipes. However, it is important that you do not rush through the process.

If you do not take the time to do it right, you will end up with a carburetor that is just as dirty as before. When you’re done, remember to clean the area around the carburetor so that your vehicle doesn’t get dirty again right away.

Related Guide: My Lawn Mower Turning Over But Not Starting

How Do You Clean Carburetor on Troy Bilt tb230 Lawn Mower?

First, you will need to shut off the gas to your mower. Before you do this, make sure there is nothing that could cause a spark, like a lawn mower left running in a shed.

Next, you will need to remove the air filter and the carburetor cover. After that, the carburetor should be visible. Be careful with the throttle linkage and the primer bulb.

These parts are extremely sensitive. Once you have the carburetor exposed, you can remove the bowl. Carefully take the bowl off and clean the inside of it with some Carburetor Bowl Cleaner. You can also use a soft bristle brush to clean the rest of the carburetor.

Just be careful when you are scrubbing not to break anything. When you are done cleaning, you can spray the carburetor with some Coolant Repellent to help it run cooler.

How Do I Know if my Lawn Mower Carburetor is Bad?

There are a few signs that you might need to replace your carburetor. One of the most common signs is if your lawn mower is not idling properly. If you cannot get the mower to idle correctly, it could be because the carburetor is clogged.

Another sign that your carburetor needs to be replaced is if your mower is running hotter than usual. You may also notice that your fuel is not being burned efficiently. If you notice any of these issues with your mower, it is likely time to replace the carburetor.

How often Should I Clean the Carburetor?

It is recommended that you clean the carburetor once per season. It is important that you do not wait until the carburetor is clogged to clean it. If you wait until it is clogged, it will take a lot more work to get it cleaned.

Cleaning the carburetor once per season can help you prevent these issues from happening.

Now that you know how to clean the carburetor on your Troy Bilt lawn mower, you can get it running like new again. Cleaning the carburetor is a simple process that takes very little time and effort. Now you can get back to enjoying your lawn mower without any issues.


Carburetors can become contaminated with plant life and other undesirable compounds that affect the performance of your gas-powered lawn mower. Depending on the type of fuel you’re using, carburetor cleaning can be as simple as rinsing with a bit of fuel, but for the best results, it’s important to clean your carburetor more thoroughly. The first step to carburetor maintenance is making sure that it’s relatively clean.

It’s important to understand that you can’t just pour some cleaner into the carburetor, as this can splash fuel into the engine.

Carburetors typically have a small hole at the bottom of the unit, which is used to pour in the cleaning solution. If this hole is currently blocked, then it could be time to replace the carburetor.


Victoria Peterson

I am a passionate gardener who wants to help you create and maintain your dream yard. I know that it can be daunting to take on a project like this, but I am here to help. I have been gardening for years and have learned a lot along the way. I want to share my knowledge with you and help you create the perfect yard for your home.

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