Follow step-by-step instruction to determine why your mower won't start: checking fuel levels, spark plug, carburetor and compression. Follow along this DIY video to troubleshoot and learn when it's best to service your mower.
· Understanding the potential causes and learning basic troubleshooting steps can save you time, money, and a trip to the repair shop. This guide will walk you through the most commonreasons why your Briggs & Stratton mower might be stubbornly refusing to start.
Here are the most commonreasons your Briggs & Stratton small engine won'tstart - and the parts & instructions to fix the problem yourself. We make fixing things easier!
Obviously, if you run out of gas your Briggs and Stratton mower will not start. I only mention it here just in case you skipped over checking the fuel level when you began troubleshooting your starting problem. You may have a faulty fuel gauge or you may have developed a fuel leak and are going through more fuel than normal. SOLUTION:Fill and empty...See full list on poweredoutdoors.comGas begins to deteriorate, break down, and become less effective after about 30 days. The ethanol used in gasoline attracts moisture. This moisture, once it evaporates, leaves a gummy residue behind that can clog your fuel systemincluding your fuel lines, filter, and carburetor. It is necessary to purchase fuel from a busy gas station and use it wi...See full list on poweredoutdoors.comYour fuel cap has a vent. When this vent gets plugged, your fuel tank will create a vacuum preventing your Briggs & Stratton mower from getting gas to the carburetor. To check whether your gas cap is the cause of your starting problem, remove the cap and start your mower. If the Briggs & Stratton that wouldn’t start now starts, go ahead and reinsta...See full list on poweredoutdoors.comAnother reason your Briggs & Stratton won’t run may be due to a bad spark plug connection or a damaged spark plug. A plug that has carbon buildup or oil on the tip can foul out causing your engine to misfire and not start. Check the spark plug wire to ensure it’s making a good connection. Your spark plug must be gapped to the engine manufacturer’s ...See full list on poweredoutdoors.comThe ignition coil provides voltage to the spark plug so it can fire and start the engine. The engine will not start if the spark plug isn’t able to fire. SOLUTION:After you verified your spark plug is in good condition, check the continuity of your ignition coil. Replace the ignition coil if you find a break in the continuity.See full list on poweredoutdoors.comThe engine in your Briggs & Stratton requires air to run. If your air filter gets extremely dirty, it can starve the engineof air because air will no longer be able to pass through the filter. A Briggs & Stratton engine that doesn’t get sufficient air will not start. When the airflow is blocked by your air filter the engine must find air to continu...See full list on poweredoutdoors.comThe fuel pump exists to get fuel to the carburetor. You’ll only find a fuel pump used with a Briggs and Stratton engine when the carburetor sits higher than the fuel tank. You most likely won’t find one on a small push mower. A fuel pump, just like any other mechanical part, can fail over time. A likely cause is due to old fuel deteriorating the pu...See full list on poweredoutdoors.comYour fuel filter is a line of defense to prevent dirt and debris into the engine by straining the fuel. Make sure the fuel that is running into the filter is also running out of the filter. If it does not, you must replace it because it is most likely plugged preventing your Briggs & Stratton from starting. Check these places for a fuel filter: 1. ...See full list on poweredoutdoors.comOld fuel and dirt leave deposits that can clog your Briggs & Stratton mower’s fuel line. SOLUTION:Remove the fuel line, spray carburetor cleaner into the tube, and use compressed air to blow air through the tube until the line is free of dirt and gummy residue. You can also replace it with a new fuel line.See full list on poweredoutdoors.comThe function of the carburetor is to regulate the right amount of gas with the right amount of air so your engine can create combustion. Carburetors can get crusty buildup and gummy deposits from using old fuel containing ethanol. When the carburetor is no longer able to regulate the amount of fuel and air your engine receives, your Briggs & Stratt...See full list on poweredoutdoors.comJun 23, 2025 · This guide helps you troubleshoot common problems. BriggsandStratton engines are known for their durability and efficiency. But like all engines, they sometimes face issues. Whether your lawnmower won’tstart, or the engine runs rough, this guide is here to help. We’ll walk you through easy steps to identify and fix problems. · Is your Briggs and Stratton lawn mower refusing to start? Discover common issues behind this frustrating problem, from fuel and spark plug troubles to air filter blockages. Dealing with Briggs & Stratton Small engine wontstart? Find out the commoncauses and step-by-step solutions trusted by pros. Fix it fast and get your Small engine back to normal with easy tips from AppliancePartsPros.com.
· This guide helps you troubleshoot common problems. BriggsandStratton engines are known for their durability and efficiency. But like all engines, they sometimes face issues. Whether your lawnmower won’tstart, or the engine runs rough, this guide is here to help. We’ll walk you through easy steps to identify and fix problems.
· Is your Briggs and Stratton lawn mower refusing to start? Discover common issues behind this frustrating problem, from fuel and spark plug troubles to air filter blockages.
Dealing with Briggs & Stratton Small engine wontstart? Find out the commoncauses and step-by-step solutions trusted by pros. Fix it fast and get your Small engine back to normal with easy tips from AppliancePartsPros.com.
