If you haven't refueled your lawn mower recently, add some fuel before your mowing session. They'll then get the carburetor working properly. The engine of your mower relies on the right combination of fuel, air, and a spark (for combustion). Old Fuel or the Wrong Fuel. Most of these causes can be easily fixed through DIY repair means—if you want to fix it. What Causes a Riding Mower to Sputter & Die. Then scrape the excess grass using a scraping tool such as a paint scraper. Dirt can also build up in the parts between the carburetor and the fuel filter, stopping fuel from getting to the combustion chamber. Spring/wire that comes from the lever->deck that disengages brakes & engages blades appears normal? Even if you keep your mower in good shape, it may still break down. You can tell if there is water in liquids by seeing if they separate into two phases or have different colors. Clean the carburetor.
The Air Filter Is Dirty or Clogged. When water enters the cylinder, it will not ignite, and it impedes the gasoline from igniting properly. Moisture in the Tank. Water in the fuel tank or fuel line can cause engine headaches. A spark plug problem can be the cause of your lawnmower keeps cutting out. It could also be that the carburetor is not rightly placed. Reasons Why Lawn Mower Sputters But Runs - LawnAsk. If you have been using the same mower for a while, the carburetor may have gotten dirty and clogged up with gunk. Find out the problem first. If a lawnmower sputters when blades are engaged, the most common issues include low gasoline levels, damaged belts, stuck pulleys, and broken safety switches. If refueling does not work, then the problem might be something else that has to do with the lawn mower's parts. This blog post gives you a step-by-step explanation for all the causes and fixes to quickly solve the sputtering problem. The carburetor affects how well the mower runs. In most cases, you can expect it to be an issue involving maintenance, belts, safety switches, pulleys, or just a clogged mowing area. If you've tried everything else on this list, it's likely a carburetor issue and your mower may require professional service.
Fix: Drain the water from the fuel tank, fuel line, and carburetor. You might need to replace it if it's damaged since this could cause leaking. Another reason for your lawnmower to keep cutting out can be a dirty air filter. If it seems blocked, clean it, but it is best to get a replacement if you are unable to. Check the Air filter.
But if you've had your mower for a long time, the gasoline in it might have gone bad, making it not work properly. Gunky deposits can occur in the apertures and carburetor. If the gas cap is broken, bent, or the vent hole is blocked, you should get a new one. These reasons include dirty carburetor, old or stale fuel used, clogged or dirty air filters, water in the fuel tank, and many others. How to Fix a Sputtering Lawnmower. If there's water in the gas tank or fuel line, it could be blocking the passage of gas and therefore affecting your mower's ability to continue working. It is capable of melting plastic parts, which can cause sputtering. Check the underside of the unit for caked on grass.
This leads to poor performance and possibly even a broken engine.