Why Is My Snowblower Backfiring? (Explained)

When the snowblower starts malfunctioning, you will have to pinpoint what the root cause is and how it can be corrected.

It’s essential to get to the bottom of this to ensure the snowblower does not break down or does not stop working for good.

A common issue people report when using their machine is when a snowblower is backfiring.

If the snowblower is backfiring, start by reducing the engine speed and changing the fuel. Next, clean the carburetor and make sure to adjust it. Once done, increase the air volume in the engine to help optimize how the snowblower works.

When it is time to adjust the air volume in a snowblower, each model is going to be unique. You will have to go through the manual and/or find out through the manufacturer how to change the air volume properly.

A backfiring snowblower can be fixed by making these adjustments to the machine.

This guide is going to highlight what you need to do as you learn how to fix a snowblower that’s backfiring and what to account for.

Tips On How To Fix A Snowblower That’s Backfiring

1. Lower The Engine Speed

You will want to start by reducing the engine speed.

The RPM can be adjusted at the engine to make sure the speed goes down. There is a lever that will help you adjust it down or up.

The lever can be moved to the left when it is time to decrease the engine speed and you do the opposite when you want to increase the engine’s RPM.

It is recommended to reduce the engine speed by pulling the lever to the left. This is going to let you see if that is the underlying issue.

Do not make dramatic changes to the speed.

You will want to start slowly and see if that helps. It will get better and then you will know what the optimal engine speed is for your model.

2. Change The Fuel

Has the snowblower been sitting for a while in storage?

This does create new issues where you are going to have to prepare the snowblower before putting it to use.

A common mistake people make is to not change the fuel.

You will want to make sure the fuel is clean and new. When it has been sitting for more than 30 days, the fuel in the snowblower is going to age aggressively.

It will not be good for the snowblower and that is how the snowblower is going to backfire on you.

Take the time to swap out the fuel and make sure the snowblower has a chance to work properly.

3. Adjust And Clean The Carburetor

You will also want to look at the carburetor during this process.

When a snowblower is unclean, it is going to have a ruined carburetor. You will want to go to this part of the snowblower and see if it is clean or not.

The carburetor is located at the back of the snowblower. You can remove the cover and this small part will come right out as soon as you unscrew it.

This can be cleaned with the help of a specialized carburetor cleaner that is sold on the open market. You will want to wipe it clean and get rid of the residue.

Once done, you are also going to want to tighten it as soon as it is installed back into the snowblower.

4. Find Ways To Increase Air Volume In The Engine

You will also want to take the time to increase the air volume in the engine.

This is going to vary for each snowblower model.

A lot of people will not look into this and assume the air volume is enough for the machine. This does not have to be the case and it creates a situation where the snowblower backfires often.

You will want to look at what your model needs to get the air volume up as much as possible. This is essential when you are working on the engine and want to ensure it works out as planned.

This is a good way to optimize how the snowblower works.

Final Thoughts

Why is my snowblower backfiring?

If the snowblower is backfiring, it’s best to start by lowering the engine speed using the lever, cleaning the carburetor, and changing the fuel. Once done, increase the air volume in the engine to make sure it is optimized for the machine.

This is something you will want to look into as you begin optimizing how the snowblower works. If not, the snowblower will fail to work and is going to start creating unnecessary issues.

This includes how the snowblower starts and how it ends up working when moving around heavier snow.

Make sure the snowblower works the right way as long as you are diligent with your strategy.