Snow thrower backfires

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Old, undrained gas and other cumulative problems like dirt and debris can cause numerous issues for your machine. By taking the time to store and care for your snowblower, it will last longer and run more smoothly. Why do snowblowers backfire? Snowblowers backfire because there is an issue with the ignition. A dirty carburetor that needs to be cleaned or a degraded spark plug over time may have cracked porcelain, a worn tip, an overlarge gap between electrodes, carbon buildup, or fuel on the end. Some problems have only a single source, but others like a backfiring snowblower come from several potential sources.

Snow thrower backfires

Is the small engine on your lawn mower, snow blower or outdoor power equipment making loud noises? Backfire is a condition described as a loud bang, poof, explosion, etc. Afterfire occurs after the engine has been shut off. Note: Backfire and afterfire through the carburetor will not harm the engine at all! Find out the most common causes and possible fixes for engine backfire and afterfire. Backfire typically occurs when the engine is decelerated rapidly. Common Causes of Backfire:. Common Causes of Afterfire:. Learn how to properly and safely use, troubleshoot, and maintain your lawn mower, tractor, snow blower, and other lawn and garden equipment. View How-To Articles.

A lean running carburetor will also make the engine too hot, and cause the muffler to glow, so this is another telltale sign if the engine is backfiring.

If it happens when you are desperately trying to clear your yard of snow, it can be even more of a worry! The good news is, if you are wondering why your snow blower backfires, then we have outlined 9 possible reasons here. A backfiring snow blower can be caused by a number of things, including the throttle being shut off too quickly. The first check should be the spark plug, as often replacing them is cheap and easy and will solve the issue. In situations like this, a good first port of call is to check and possibly replace the spark plug. Spark plugs can go bad without you realizing and quite often replacing them is a quick, easy and cheap way of solving the problem.

This site is an affiliate for companies including Amazon Associates and earns a commission on qualifying purchases. So, if your snowblower is surging and backfiring, you need it to be fixed— and quickly. Issues relating to the carburetor are the most common when it comes to surging and backfiring problems. Through a simple trial and error process, you can look for common causes and periodically check to see if the problem has been resolved. Keep reading for troubleshooting tips and tricks to identify the cause behind your snowblower issues and how to fix it.

Snow thrower backfires

If it happens when you are desperately trying to clear your yard of snow, it can be even more of a worry! The good news is, if you are wondering why your snow blower backfires, then we have outlined 9 possible reasons here. A backfiring snow blower can be caused by a number of things, including the throttle being shut off too quickly. The first check should be the spark plug, as often replacing them is cheap and easy and will solve the issue. In situations like this, a good first port of call is to check and possibly replace the spark plug. Spark plugs can go bad without you realizing and quite often replacing them is a quick, easy and cheap way of solving the problem. But also the color and condition of a spark plug is a good way of reading the condition of an engine.

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RE: Snowblower backfiring When I start it up if I turn off the choke before the engine warms up it will back fire. This is usually a result of leaving it to sit too long with gas inside. If ignition happens before your air vent is entirely open, then it may cause backfiring. I'm hoping it's just that, but it seems fishy considering I had already filled it not that long ago. Warranty Information. If the gasoline has been sitting in the gas tank for more than a month, then you should empty the gas tank of the snow blower and use fresh fuel. The time now is PM. A way to maybe check that is to add just a little choke and see if the back firing goes away. Most of the time, this results from leaving a filled snowblower to sit too long between uses. Log in. Manage Consent.

Snowblowers can backfire due to carburetor issues, low-quality or stale fuel, incorrect engine timing, a faulty spark plug, a blocked exhaust system, loose or damaged exhaust components, or ignition system problems. A backfiring snowblower can be both startling and concerning. Backfiring occurs when unburned fuel ignites in the exhaust system rather than in the combustion chamber.

Find all posts by REW. I'll probably end up having to get a carb rebuild kit. Why engines matter. Top Bottom. Come join the discussion about brands, maintenance, reviews, troubleshooting, repairs, accessories, classifieds, and more! If I move the knob slower there is no issue. New posts Latest activity. User Name. Will try it tomorrow as I have a foot or so of snow in my driveway from not bothering to shovel knowing that I just have to wait till my snow blower is fixed. C1 Platinum Member. Job Search. When I was done I brought it in the garage so I can see properly and filled it up more, so next time if it stalls I know I really do have a problem. Either way hopefully next time there's an issue I will have insulated and added heat to my garage so I can try to fix it myself, but this particular thing would probably have been the last thing I'd even think of checking. Your Carburetor Needs Cleaning 2. Find out the most common causes and possible fixes for engine backfire and afterfire.