​How to clean a carburetor without removing it

You occasionally have to clean a dirty snowblower carburetor to avoid facing an impeded performance.

And while you can remove it and scrub the carburetor from outside the blower, knowing how to clean a snowblower carburetor without removing it saves you a lot of time and stress – especially if you passionately dislike opening up machines.

The good thing is that you don’t have to be a rocket scientist to hack it- as you will see shortly.

But before we look at that,let’s briefly look at a few issues related to a snowblower’s carburetor:

Signs that your Carburetor is dirty

The lingering question for many snowblower owners surrounds knowing when a carburetor needs cleaning.

Here are the tell tale signs.

Starting problems

If your carburetor is clean (and working smoothly), the snowblower engine should start without much ado.

Carburetors fail to start properly when grimy because the dirt blocks the correct combination of fuel and air from traveling through their usual opening to the engine, bringing all manner of problems.

Poor idling

If you notice that it suddenly develops a habit of rough idling (your blower feeling irregular and bouncy when its engine is running) or it’s idling too fast, then it could be time to cleanse it.

Uneven acceleration

Again if it’s working properly, it should accelerate without stumbling. So unbalanced or start-stop acceleration is another clear sign that you need to clear any deposits.

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Greedy fuel consumption

When it develops an increased appetite for gas, then it could be that it’s dirty.


Obviously flooding results when too much fuel gets into the cylinders.

A carburetor could be faulty or it may have debris in its needle valve -which makes it stick open causing a spillage.

What to do Before Cleaning your carb

To effectively remove gum, varnish, and dirt from the carburetor, you will need to do some preliminaries.

Revisit your owner’s manual

To have it your way, it’s better to first go back to your snowblower's owner's manual.

Your motive will be to re-read everything about the carburetor. You will most likely come across rich information that may help you during the process.

You can download the manual from the manufacturer’s website if you no longer have a copy.

Check the condition of the Air Filter

Start by inspecting the condition of your air filter so as to ensure that only clean air (free of residuals) is coming into your carburetor.

That’s because your snowblower will continue emitting black smoke even after cleaning if the air filter is clogged.

Clean the filter or replace it if it’s nearing the end of its useful life.

Cleaning your snowblower’s carburetor without removing it– step by step

You will use a cleaner to cleanse the carburetor while it’s still in the snowblower.

Carburetor cleaners are liquid solutions made to methodically dissolve layers of dirt and choke from the inside/outside of a carbso to improve engine performance and reduce downtime

Items you need:

  • A socket wrench
  • A wire brush
  • A copper wire (piece)
  • Compressed air can
  • A carburetor cleaning solution

Step 1: Turn off your SnowBlower

Maintaining a machine when its running can be hazardous.

So start by turning off your snowblower.

Also, allow it a couple of minutes to cool off.

Step 2: Remove the Muffler

To fully access the carburetor, you have to remove the muffler.

Using your socket wrench, remove the bolts/nuts holding the snowblower's muffler in place.

The manual should help you locate the muffler on your engine assembly.

Step 3: Take out the gas tank

Here you have to be mindful not to spill fuel.

Still using your socket wrench, remove the bolts holding the snowblower’s gas tank.

Then slide it carefully off and place it aside.

Step 4: Place an Empty Pan/Container under the Bowl

You will be draining fuel from the carburetor in the next stage and to do this, you require a collecting container.

So, site your snowblower's carburetor bowl – check your manual- and place a container or apan under it.

Step 5: Drain The Fuel

It’s almost impossible to effectively unclutter your carburetor without emptying fuel.

To do this, remove the nuts on the base of the bowl. Fuel willstart drainingfrom the carburetor.

Wait until your carb is fully emptied before removing the pan.

Step 6: Clean The Bowl

By now, your carburetor’s bowl is loose.

Twist it off.

Now wet a piece of clothusing your carburetor cleaning solution.

You can now clean the bowl’s inside.

Step 7: Scrub The Nuts

Some residue normally remains on the nuts.

To remove such debris, spray a sufficient amount of your cleaning solution on the bowl’s nuts and scrub them using a wire brush.

Step 8: Clean Dirty Holes

Using a copper wire, clean out any visibly tarnished small holes in your carburetor.

Also,spray around the carburetor’s throat to eliminate deposits from its throttle plate area

Step 9: Blow Leftovers

Wipe out any other grim that maybe pending by blowing it out using compressed air.

For maximum efficiency, apply the compressed air can to each hole.

Step 10: Reassembly

Now all the grim should be out in the cold and your carburetor spotless.

Reassemble the carburetor bowl and everything else by following the previous steps in reverse.

Don’t forget to shine the outside of your carburetor plus all other linkages once you put back everything into place.


  • The engine should be off and cool.
  • Never sprayon electrical connections.
  • Some of the sprays deface painted surfaces. In case you accidentally spray on such painted areas, wipe it off at once to avoid damage.

Wrapping it up

Knowing how to clean a snowblower carburetor without removing it saves you time and the stress associated with opening a carb.

And the best part is that it’s as effective as the traditional carburetor removal approach.

You will no longer experience hard starts, sputtering, bouncy idling and all the related teething problems.

So, don’t let carburetor problems to suffocate your snowblower just because you aren’t a fan of opening stuff.

Experiment with our steps and over time; you should become a pro.


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