How to Clean Your Dirt Bike Carburetor
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How to Clean Your Dirt Bike Carburetor: Step by Step Guide

How to Clean Your Dirt Bike Carburetor: Step by Step Guide

A dirty carburetor is the main cause of a dirt bike engine not running well. When you open up your gas tank to fill it, you’ll find that there’s more than just gas in there. There’s also oil, dirt and other contaminants.

It all builds up inside the carburetor and can cause the engine to run poorly or even break down. The good news is that it doesn’t take much time to clean out a dirt bike carburetor.

In fact, it only takes about 15 to 20 minutes of work to have your dirt bike running like new again! In order to clean your dirt bike carburetor, you’ll need a spray bottle filled with gas and some type of cleaner.

Today we will guide you how to clean a dirt bike carburetor in just few steps easily.

What is a dirt bike carburetor

The carburetor is responsible for controlling the amount of fuel and air that is delivered to the combustion chamber in your dirt bike engine. It’s also the most frequently used part of your engine, so it needs to be maintained and serviced by a mechanic.

Dirt bikes need carburetors to perform at their best because they have to high power. A high-performance dirt bike engine needs a carburetor that is well maintained so that the engine will function at its right peak.

A dirty carburetor is the main origin of a dirt bike engine not running perfectly because of dirty oil, dirt and other contaminants.

How to clean the dirt bike carburetor?

There are three ways to clean the dirt bike carburetor. You can use a vacuum, use a cleaner, or a mixture of both. There are four steps to this process. Step one is to turn off the air compressor. This will allow the fuel to flow to the carburetor without the compressor blaring away.

Step two is to grab a hand vacuum and fill the nozzle with gas. Step three is to attach the hand vac to the air compressor. All you need to do is run the hand vac or spray bottle gas over the carburetor.

This will loosen any debris that may be in there. Step four is to clean the carburetor with a solvent-based cleaner. To clean the dirt bike carburetor with a solvent-based cleaner, you’ll need a cleaning tool and a few drops of grease.

Step-by-step instructions

1. Spray your dirt bike carburetor with gas. 2. Once the gas has completely evaporated, spray a thin layer of standard motorcycle fuel oil in the carburetor. Make sure that there is no oil around the holes or holes in the carburetor where you spray the oil.

You’ll notice that the carburetor will take a minute or two to absorb the oil. If you need to, use your finger to keep the carburetor from moving while you wait for the oil to dry.

3. After the carburetor has absorbed the oil, re-assemble the carburetor so that it’s pointing down, then go ahead and fill it with gas.

4. Close the gas tank cap and put the fuel selector switch back in its normal position (if the switch is broken and in the on position, you can use the switch to select a gas-only mode) and fire up your dirt bike.

Disassemble the dirt bike carburetor

Before we go any further, you’ll need to remove the carbs from your dirt bike. Remove the rear main seal and the front main seal from the carb. They’re the two big metal pieces at the back of the carburetor. They’ll come right off when you simply pop them out.

Do this first and then we’ll remove the rest of the carburetor from the exhaust system? First, place the front main seal between your hands so that the end is pointed down. Then lift up slowly.

Once the entire front of the carburetor is off of the exhaust system, take a rag and gently wipe off the dirt that’s on the rubber gasket at the back of the carburetor. Make sure to go around the entire edge of the carburetor and also the rest of the exhaust system.

Clean it up

These products will remove any dirt, grime, or debris that may be inside your dirt bike carburetor. If you don’t have the proper tools or a gas can to get it all out, you’ll want to use these products to speed up the process.

Take a look at our complete line of Dirt Bike Cleaner Products. Each item is guaranteed to remove any and all of the dirt, grime, or debris from your dirt bike carburetor. After you’ve cleaned your dirt bike carburetor, just return to step 1 and fill it back up with gas.

If you would like to learn more about cleaning your dirt bike carburetor, check out our Dirt Bike Carburetor Cleaner Tool Kit.

Put it back together

So how do you get the carburetor back together? Using the carburetor is as simple as you might think. The carburetor is held together with the spring and cam. To reassemble the carburetor, simply take the spring and the cam apart and put them back together.

To remove the cam, unscrew the screw that goes into the bottom of the carburetor. Unscrew the small nut that’s attached to the intake manifold and then push on the cam and spring until it pops out. Now that the carburetor is back together, it’s time to fill it up with gas.

To do this, unscrew the gas cap and put a gas bottle on the spigot, next to the fuel tank. The new fuel tank has to have enough gas to cover the air intake of the carburetor.


The main reason dirt bikes that have carburetors (and other carburetors) are so hard to clean is because they use filters, tubes and other pieces to keep dirt and oil out of the intake manifold.

So, you’ll need to remove all dirt oil, dust, from your bike carburetor to get enough speed and running performance. Now you know that how to clean a dirt bike carburetor in just few steps perfectly.

However, if you want to clean the carburetor on your dirt bike yourself, it can be done quickly and easily in just a few minutes by following our cleaning guide. Let’s get started!

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