#7. Next, youll need to gather the right supplies for the job at hand. Make sure to properly lubricate your chain with chain oil and check the compression in the cylinder. Firstly, what instigates the chainsaw Bog down? Thank You for all replies. Jul 22, 2008. A dirty or damaged spark plug can cause it to misfire causing the string trimmer to run rough. Maintenance is the key to sustenance. The engine should start by now. Remove the air filter from its housing using a screwdriver. No wonder I dont have any luck with the damn things!Sea foam and an ultrasonic and thats it huh what is your success rate?Do you need to pull those small pie shaped plugs? Lastly, its time to play mixologist. Read more about this in, "This is the Type of Gas to Use in a String Trimmer". It has a new spark plug, clean air filter, n Welcome, Guest. Will start, sound fine, and work for a couple of minutes, until it gets warm. no never loaned it out. Besides having an abiding interest in popular science, Deziel has been active in the building and home design trades since 1975. ry=1 Stihl ST251C Chainsaw Stalls when I depress the throttle. 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/. He tests chainsaws based on There are a number of issues to check in a sequence as why a mini chainsaw would bog at full throttle. Proper adjustment is critical for safe operation and efficient cutting performance, and the T adjustment allows anyone to determine the accurate tension of their chainsaw chain in a matter of seconds. It is also its orientation that keeps it working smoothly on little or full throttle. If your chainsaw starts but does not stay running, the low-speed (L) and idle screw (I) may not be properly set. I have a MS250 that's only two years old and has barely been used. Home Why Is My Chainsaw Bogging Down? If it still doesnt look clean, it might be time to replace it. Poor chainsaw maintenance is one of the lead causes of bogging. Anobstruction in any of these components may disrupt the fuel flow to the engine, leading to the engine bogging down while idling. Adjusting the H screw will help achieve optimal performance. piston and cylinder is clean. Ok I think I can share the pics from this site. Here are the solutions for common reasons why chainsaw bogs down after giving it gas - 1. document.write('') I have replaced the spark plug (properly gapped), rebuilt the carb, replaced the fuel line and the fuel filter, cleaned out the chain brake and the clutch and cleaned the fuel tank air pressure stabilizing valve. How do you know what the best gas-to-oil mixture is the best for your chainsaw? I think I am having the same problem with mine. The reason for that may be you're using the saw at altitude or the carburetor adjustment has simply slipped. Login with username, password and session length, Model 6020-20hp Manual Thomas bandsaw,TC40A 4wd 40 hp New Holland tractor, 450 Norse Winch, Heatmor 400 OWB,YCC 1978-79. Turning the knob will either tighten or loosen the chain, depending on the direction the user turns the knob. Use a starting fluid and letting it run flushes gunk out of the jets as an alternative to rebuilding the carburetor. imagelinks[6]="http://www.ezboardwalk.com/" How to Adjust the Carburetor on an Eager Beaver Chainsaw. Secure your chainsaw to maintain stability while working. For that you require a carburetor cleaner. How Much Power Do Stihl 031 AV Chain Saws Have? Updated: 00/04/25 I have a MS250 that's only two years old and has barely been used. You can have as many as you wish There are several factors may make your saw not work properly. Similarly, adjust the other screws, namely the L and H screws, until the RPMs are at an optimal level that prevents the saw from burning out. Fill the tank with the prescribed gas-to-oil ratio. ALL RIGHTS RESERVED! Turning it clockwise will increase fuel flow, and turning it counterclockwise will reduce fuel flow. If the spark plug is cracked or damaged, you will need to replace it. If the spark arrestor is clogged, the chainsaw may run stall or run rough. In that case, its best to check your air filter and clean it if needed before moving on to more complex issues. There is no hiding from dirt. Just not sure what I am doing. if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,600],'remodelormove_com-mobile-leaderboard-1','ezslot_24',167,'0','0'])};__ez_fad_position('div-gpt-ad-remodelormove_com-mobile-leaderboard-1-0');The T adjustment on a chainsaw is a tool-free tensioning system that makes it easier for users to adjust the tension of the chain. Answered by Patrick, Top 10 Best Chainsaw Bars Tested and Compared for 2023, How does a Chainsaw Carburetor Work? This can usually be done by turning the adjustment screw clockwise. If your Stihl chain saw purrs like a cheetah when it's idling but stalls when you actually try to do some work with it, it could indicate the carburetor isn't adjusted properly. Cant get a good picture becouse of the glare of the piston. 2. Most engine problems can be solved with the previously mentioned adjusting procedure. To remove it you need to depress a small tab and slide the fuel line off. 6. Cleaning the air filter and spark arrestor with, Read More Chainsaw Bogs Down When CuttingContinue, Did you buy a new Stihl chainsaw, remember you cannot go and start using it like any old chainsaw. Check, clean, and replace (if necessary) the air filter. Next, check the spark plug to make sure it is clean and properly connected. Its worth noting that loosening a screw improves the fuel flow rate and enriches the mixture while tightening the screw has the reverse effect. Or maybe gas varnish in the screen filter at the base of the metering needle. The solution is easy and you can do it within a few minutes. When the saw bogs down during cutting, it's usually the high-speed screw you need to adjust. Associate Degree. It's a small screen you can simply pull out after removing the muffler cover. Why Is My Chainsaw Bogging Down? What causes a chainsaw to bog down when accelerating? It will start up with some work, but it idles for a couple seconds then dies most of the time, and when it doesn't die on its own, it dies when I try to give it any gas. I didn't run straight gas through it and it isn't sized up so I am wanting to dig into the carb myself. For a detailed answer, read the causes section above. 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. Thanks for the replies; I'll try out these suggestions. Chainsaw bogging down after starting or not starting at all is a common problem for a lot of chainsaw users. All help is appreciated. You should also check the spark plug and air filter to make sure that they are not clogged or damaged. After reassembling the carburetor make sure the gaskets and seals are airtight. Go ahead and buy a new fuel filter. Also, use a clean cloth and some carburetor cleaner to wipe down the inside of the carburetor. It is possible that your Stihl chainsaw is dying when you give it gas if the carburetor, spark plug, chain, or air filter is malfunctioning. Curtis B. Hello, and thanks for visiting my site! var imagelinks2=new Array()