If user's chainsaw is bogging down than this is often a sign of improper gas-to-oil ratio. If the spark arrestor is clogged, the chainsaw may run stall or run rough. The spark arrestor is behind the muffler. Make sure that its leveled and does not tilt. A rich mixture occurs when you have too much gasoline with the amount of oil in your fuel mixture, resulting in a poorly operating chainsaw. Finally, if all previous procedures fail to provide results, the ignition may be at issue. Stihl Chainsaw Bogs Down When I Give It Gas The Job of the Carburetor Without the right amount of air and fuel in the piston cylinder, the 2-cycle engine in a Stihl chain saw runs inefficiently and the saw loses power. The first problem is that when the saw is tilted forwards or the chain brake is disengaged it stalls. He pledges to come up with new knowledge about chainsaws every once in a while. Rotate the fuel supply lever and keep it in the on position while you spray the carburetor cleaner. if (ry==0) my elevation is 640' above sea level. I doubt it has more than four or five hours on it. (Read 66824 times) (Read 66824 times) 0 Members and 2 Guests are viewing this topic. Remove the filter from the tanks bottom and clean the stale gasoline deposits from the filters jets with a metal wire. Why does my Stihl chainsaw bog down when I give it gas? Dirty Spark Plug Causes a String Trimmer to Run Rough. Classifieds - Engine/Transmission/Transfer Case, BJ42 | FJ43 | BJ44 | FJ45 | FJ45LV | HJ47, North American Clubhouses - Central Region, CA.AB- Rocky Mountain Land Cruiser Association, CO/WY- Horsetooth 4 Wheelers Cruiser Club, TX- Lone Star Land Cruisers - Austin Chapter, TX- The White Trash of the Elwood Chapter, CA.BC- Okanagan-Similkameen Land Cruisers, NV- Battle Born Cruisers of Northern Nevada, Vendors: Accessories - Electronics - Recovery, sthil pics pictures by naturalite - Photobucket, http://s820.photobucket.com/albums/zz130/naturalite/sthil pics/. Aside from that, there are a number of other causes that can cause a bog which are as follow: The motor of a chainsaw is a combustion system that depends on an adequate ratio of gas, oil, and air. Oct 29, 2011. I have never worked on anything this small. If it needs to be cleaned, take care to not damage it by using compressed air or a soft brush. You can follow these simple steps to remove and clean your chainsaws air filter: You should note that if your air filter continues to look dirty after cleaning and drying, it is time to fully replace the air filter with a new unit. The one that is often damaged by compressed air is the one inside the high speed nozzle. You are using an out of date browser. From falling trees to slicing timber, the chainsaw is a necessity - especially if you are in the lumber industry. myimages[4]="../../../images/top-banner/ez50-banner.jpg" Most engine problems can be solved with the previously mentioned adjusting procedure. Still, if you feel that you can do so yourself, you can watch this YouTube tutorial here. The ignition system is essentially a spark plug. . Home Why Is My Chainsaw Bogging Down? In most models, it can easily be located by taking off the top cover. A dirty or damaged spark plug can cause it to misfire causing the string trimmer to run rough. 4. (Why You Might Not Want to), Why Wont My Chainsaw Cut? All help is appreciated. To remove it you need to depress a small tab and slide the fuel line off. If the fuel you are using is too old or is diluted, your chainsaw will not work correctly. To check if theres a vapor lock, unscrew the tanks cap and put it back on again. When the saw bogs down during cutting, it's usually the high-speed screw you need to adjust. Clogging usually occurs due to long working hours. Check the return/recoil spring and starter. My Chainsaw Bogs Down When I Give It Gas; Causes and Solutions [2023]. Pull the starting chord to check resistance. This causes your engines RPMs to increase to a set limit before decreasing. Currently I live in Austin, United States.