Any suggestions on how to get it running? If your chain saw still isn't turning on after examining and servicing the fuel tank, spark plug and filters, you'll likely want to examine the carburetor – the most complicated of the core components. Cleaned the air filter with compressed air, rinsed it in gasoline. A clogged carburetor can be a significant reason your Sthil Chainsaw is not starting. This sends the spark up to the plug, where it ignites the fuel. For the carburetor to work, these pressures must be equal. The spark plug may also be in need of cleaning, as a buildup of soot can interfere with its firing. If the saw is stalling when you pull the throttle trigger or it doesn't reach its full power, adjust the high-speed (H) screw. That's a sign of too much ethanol in the gasoline. $9.99. If the plug's electrodes are full of carbon deposits, it's an indication that the fuel mixture is too rich, and the plug itself may be misfiring. Use only regular gasoline in the Stihl 031 saw. I have a 9 month old Stihl MS 250 chainsaw that will not start. If a large amount of fluid gas is present, your engine may need draining (accomplished by emptying the fuel tank, turning the chain saw upside down and letting it sit for 30 to 45 minutes before attempting to start it again). Why Does My Stihl Chain Saw Bog Down When I'm Cutting? STIHL Chainsaws Selector This tool will help narrow your choices for STIHL Chainsaws. It doesn’t contain ethanol and maintains its stability for up to two years after the seal is broken. The carburetor may also need to be cleaned out, especially if the fuel in the tank has degraded or if the chain saw has been left in dusty or dirty conditions. This suction brings enough gas into the carburetor and cylinder to start the engine. NEW OEM STIHL GAS HOSE FUEL LINE & GROMMET *EARLY* 019T, O19T, 019 T CHAINSAW. Depending on the quality, a Stihl battery saw will range from $250-$900+ Homeowner Saws STIHL premixed fuel works in all STIHL gasoline-powered equipment. Before you start troubleshooting, however, it's worth knowing just how the chain saw's engine works. Blake Flournoy is a writer, reporter, and researcher based out of Baltimore, MD. When you depress the trigger, a vent on the carburetor opens, allowing more gas to reach the mixing chamber. Do not use high-octane gasoline or ethanol mixtures. There are a variety of ways to solve the issues that are causing your chain saw to fail and a few good practices you can follow to avoid having the problem in the future. If the saw stalls while it's idling, it's almost surely a misadjusted carburetor. Stihl chainsaw carburetors usually have three adjustment screws: one each for idle, low speed and high speed. Carburetor had a kit installed about 1 yr ago. created by the chain saw to the operator's hands. 99. Based on your answers, a selection of products will appear. It hadn’t been used for a season and on inspection had brittle fuel lines one of which was broken, I replaced all the fuel lines and the machine started and ran for 30 minutes through the job. it is easy … Nearly all of the mechanics and functions of a chain saw are built around the firing of its engine. Any advice is appreciated. Thankfully, a chain saw failing to start is a common problem with generally simple solutions. What Would Cause a STIHL Trimmer to Not Start? It is getting a spark. Chainsaws are great tools to have when you need them. Using the right fuel mixed with the accurate ratio of components is essential for the safe and efficient operation of your chainsaw. Video of the Day it will be a small hole at the bottom of the intake and will have a corresponding opening on the manifold block. And for additional information not covered, feel free to contact us with your questions. Instead of searching online for something like "Craftsman chain saw fuel cap" or "McCulloch carburetor," search for your specific model of chain saw and then the part (EX: "Craftsman 34120 carburetor"). Some models might have a stubborn starter, for instance, and others may require that you hold the throttle longer than you … Many problems can cause your Stihl chainsaw to stop starting. Andreas Stihl & Co. is a well-known manufacturer of chainsaws. If you are only getting fuel and spark, turn it off and replace the air filter and attempt to start again. Having your own chain saw can be incredibly helpful when it's time to do more intensive lawn and yard work, but despite their use in a lot of rugged, messy jobs, chain saws are more sensitive machines than many owners realize. Thanks If your Stihl chainsaw starts up with a reassuring puttering sound, but dies when you pull the throttle trigger, there likely is an issue with the fuel, but the carburetor could need adjustment. Heated handles, which are available on some STIHL chain saws, are recommended for cold weather use. If the saw has been in use for many hours, it isn't unusual for it to clog and prevent air getting into the carburetor. https://www.hunker.com/12455028/my-chainsaw-is-not-getting-gas When enough magnetic energy has been generated, the ignition module gets tripped. Stihl gasoline-powered equipment uses a 50:1 ratio of gasoline and 2-cycle engine oil. Beyond making sure that an adequate amount of gas is in the tank, consider the last time your chain saw was started. If the saw stalls while it's idling, adjusting the idle screw, which usually is marked LA, should help. Fuel in the tank is mixed with air when it's pulled into the carburetor where it's then ignited by a spark from the spark plug. When the spark isn't firing correctly, an influx of gas can bog the engine down or cause it to not start at all. The first place to check when troubleshooting issues with your chain saw's gas intake is the fuel tank itself. This doesn't only hinder the engine's fuel combustion process but can clog the carburetor and run the risk of fouling the spark plug. Still no go. just make sure to pay attention to the order of the diaphragm and gaskets. Fuel filter and all hose lines are open and clean. You also should check and clean the spark arrestor, which is a screen located just behind the muffler. I'm a writer that is passionate about home improvements, remodeling, and renovating. Besides having an abiding interest in popular science, Deziel has been active in the building and home design trades since 1975.