Briggs And Stratton Engine Won’t Start. When you’re trying to get your riding mower started but the Briggs & Stratton engine won’t start, you have to take a few moments and look into the problem.
Briggs & Stratton engines often don’t start due to problems related to getting a spark at just the right moment or having too much or not enough gas in the tank being left untreated.
This is why it’s imperative for those individuals who happen to run their own lawnmowing businesses as well as keep their own lawns healthy and happy to be able to perform these simple troubleshooting tasks as quickly as possible so as not to put themselves or their clients at risk of injury by using a ride-on mower that might be hard for them to drive around.
Briggs And Stratton Engine Won’t Start
Briggs And Stratton Engine Won’t Start. Disconnected, dirty or fouled spark plugs are common causes for engines that won’t start. Not setting the correct gap between the connecting electrode of the spark plug and what’s called the terminal can be a problem as well. Then it could simply be a flywheel key that’s damaged or your kill switch might be shorted out even though both can be managed by checking its position and testing with a multimeter.
Faulty Spark Plug
Disconnected, dirty, or fouled spark plugs are one cause of engine stoppage. For small engines, you need to change your spark plugs however frequently it is recommended by the manufacturer.
You also want to make sure that the gap between the ground and center electrode is set correctly. An improper spark plug gap can lead to engine knock and poor performance.
Start Switch Issue
The start switch is what allows the ignition coil to send power to the starter motor. If this part cannot be turned on or turned off intermittently, then it will need to be replaced.
To test if your switch is defective, check it for continuity using a multimeter. The switch should have an open contact in the ‘on’ position and a closed contact in the ‘off position.
Air Filters Need To Be Checked
The Briggs & Stratton engine may not start if the air filter is clogged. Make sure the filter is clean and free of debris and then try again. In the event that it is very dirty, consider replacing it with a new one.
Spark Plug Malfunction
Inspect the spark plug to see if it needs replacing. To do this take a look at the porcelain insulator that sits between the metal of the plug and the exterior.
If so, don’t forget to check if there are any electrode burn marks from one end of the plug to another as well as an absence of carbon buildup at its tip.
If there is a strong spark appearing between your tester’s terminals, then you’ve successfully located a good quality replacement for your old sparkplug.
However, if a spark is not coming out from your tester’s lab, you know already that your current component requires removal and replacement for safety reasons after all.
Ignition Coil Problem
The ignition coil helps power the spark plug which then sends a pulse that lights up fuel. Without the right amount of voltage, your car will stall.
If you think your problem is due to an ignition system malfunction, it can be helpful to check out a few things while troubleshooting.
Starting with the simplest test you can make on your vehicle’s ignition system, try turning on the radio and making sure it works properly.
If you’ve confirmed that your radio had a problem instead of a problem with your car’s wiring or components, further tests might help isolate where exactly in the system has gone wrong.
By checking out other basic components like headlights or interior lights to see if they are working normally will also help you figure if there’s an issue with something simple like one fuse blowing rather than signs of something potentially catastrophic farther down line.
The carburetor might be clogged. A clogged carburetor is most commonly the result of leaving fuel in the engine for too long to the point that some of the ingredients within it can solidify into a thicker, stickier substance.
Over time, this sticky fuel can coal up inside of your vehicle’s fuel system and prevent the engine from starting.
If your carburetor is clogging up, try cleaning it out with a water-based spray meant for this exact purpose using heavy-duty “carb cleaner” found in most automotive stores.
If that doesn’t work, you may have to replace or rebuild your entire carburetor much like you would when rebuilding an engine.
Recoil Starter Problem
The recoil starter engages the crankshaft to turn over the engine. If the recoil starter is defective, the engine won’t startup. Remove the starter and inspect it to determine if it works properly, or has been damaged so badly that it’s beyond repair.
To find out if it’s working properly, pull on the starter rope until you feel strong resistance from what should be a mechanical tab extending from the pulley and cam at one end of the rope winding back onto itself.
If everything seems fine, replace the assembly once you’ve identified any problem areas like missing parts like the piston spring and/or sheave (the metal teeth attached to both ends of a rope) that could manifest in dangerously violent handling.