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Please loginor register. Currently I live in Austin, United States. Chainsaw starts but dies when I give it gas. Once the faulty seal or gasket is identified, it needs to be replaced, and the engine should be up and running. Location. Correct mixing of fuel ingredients. Chain Saw: Engine Will Idle But Dies At Full Throttle At this point, the battery will reset,, Read More How To Reset Echo 58-Volt Battery ChargerContinue, Clogging of the air filter/fuel line, untidy carburetor and damaged spark plug, etc. The chainsaw will bog down or stop running. The reason for that may be you're using the saw at altitude or the carburetor adjustment has simply slipped. The last thing anyone wants is a saw that purrs when idling and bogs down when applying gas. (3 Common Causes). JavaScript is disabled. First, disconnect the spark plug wire and turn the engine off. Besides having an abiding interest in popular science, Deziel has been active in the building and home design trades since 1975. Register today and take advantage of membership benefits. */ That explains why they run worse after i rebuild them! How did you get the carb off? (Read 66824 times) (Read 66824 times) 0 Members and 2 Guests are viewing this topic. Apr 16, 2009. Stihl carburetors have three adjustment screws. */ When your Stihl MS 170 chainsaw drops its power under full load, it generally means there is an improper mixture of fuel and air in your carburetor. How did you get the carb off? After a little looking, the two nuts that hold the back of the carb and filter housing were loose, I tightened them up and it ran like a top. The chainsaw bogs down will occur when your engine is starved of enough fuel or when there is termination in the connection between the carburetor and the engine. Once complete, start the engine and check to make sure the chainsaw is now running correctly. Unless you are running an electric chainsaw (which is a totally different beast), your chainsaws motor is a combustion system that relies on a proper ratio of gas, oil, and air. The main reason for an ECHO chainsaw to bog down is the dirty spark arrestor. And these issues can be solved if the problem is identified. stihl chainsaw bogs down when i give it gas Anobstruction in any of these components may disrupt the fuel flow to the engine, leading to the engine bogging down while idling. Make sure they are closed at a distance and neither touching the engine and not too far from it. (Even After Sharpening). STIHL Chainsaws FAQs | STIHL Product FAQs - STIHL - The Number One In most cases, clogged air and fuel filters and blocked carburetor jets are causing the problem. It runs fine at all other times, cuts well and has good power. STIHL Chainsaw Bogged Down at Full Throttle Author Topic: Stihl MS 180C running problems, bogging down, fuel starvation?? You are using an out of date browser. A carburetor is a part of a combustion motor that mixes air and fuel in a specific ratio for combustion. Empty and clean, if needed. Stihl Chainsaw Bogs Down When I Give It Gas - WHYIENJOY Other potential causes of bogging may include a spark plug that needs replacing, fuel that has gone bad, incorrect fuel-oil mixture, chain that is too tight, or even an over-revved engine. In case you have filled it wrong, drain it out and replace it with the correct mix. When you depress the trigger, a vent on the carburetor opens, allowing more gas to reach the mixing chamber. It's looking a little tricky to me. Chainsaw bogging down after starting or not starting at all is a common problem for a lot of chainsaw users. Before tossing your chainsaw in the shed, there are a few simple things you should do to ensure the longevity and productivity of your tool. } Check the spark plug as well to examine the ignition system. Sometimes the L adjustment is insufficient, and you must tweak your fuel delivery components, specifically the carburetor and filters. There are a number of carburetor-related problems. The inability to reach full power during a full-throttle trigger is also a sign of bogging down. Hello, and thanks for visiting my site! Why Does My Stihl Chain Saw Bog Down When I'm Cutting? I doubt it has more than four or five hours on it. 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. As mentioned before, most chainsaws will run on one of three gas and two-cycle engine oil mixtures. You are using an out of date browser. Chainsaw bogs down in cut in Chainsaws - forestryforum.com 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. Found the problem. For a better experience, please enable JavaScript in your browser before proceeding. The new fuel doesn't really clog the carbs. I just worked on my grandpa's ms 192t. If it still doesnt look clean, it might be time to replace it. Here is a visual troubleshoot guide by Foxboss9 discussing the bogging issues and their solution: A Husqvarna chainsaw bogs down due to a clogged air filter or spark arrester. How to Hang a Chainsaw to keep it Safe and Protected in 2023? Cant get a good picture becouse of the glare of the piston. I told them that I ran Polaris gold synthetic in it, which I used to use in my drag bike years ago, service manager says stihl says that that is an unacceptable oil. To do this: Loosen each bolt about half way down using flathead screwdriver or small wrench (depending on size). By properly troubleshooting and addressing any potential causes, you can prevent stalling or restarting problems with your Stihl saw. Dont forget that a maintained chainsaw is a working chainsaw! Quick Answer: Why Does My Chainsaw Cut To The Right Nearly every weekend you will find us doing small or big jobs or just enjoying our garden. +1-213-221-0119, By using this website I agree with the Disclaimer. Check cooling fins on the cylinder and clean if needed. Stihl Chainsaw - starts but won't run - Houzz This means emptying the fuel tank and then restarting and letting the unit run until all the fuel is consumed and the engine stops. If the air filter is clean, then the spark plug should be cleaned and gap adjusted to the manufacturers specifications. 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. Finally, if all previous procedures fail to provide results, the ignition may be at issue. While you are in there, check the spark arrestor screen to make sure it is clear and that there is not any debris clogging it. random_imglink() It's a small screen you can simply pull out after removing the muffler cover. When the high-speed screw on the carburetor is open too far, an excess of fuel enters the combustion chamber and not all of it ignites. If your chain does not rotate, you can skip this step. document.getElementById("ak_js_1").setAttribute("value",(new Date()).getTime()); Your email address will not be published. Maintenance is the key to sustenance. It has a new spark plug, clean air filter, n Chainsaw bogs down in cut in Chainsaws Have a Stihl 441 that starts and idles fine and even start cutting. on Chainsaws. You can clean clogged or dirty carburetors with carburetor-specific cleaning solutions that you can purchase at your local chainsaw dealer or auto parts store. myimages2[2]="../../../images/top-banner/behindtheforum.jpg" Continue with Recommended Cookies. The consent submitted will only be used for data processing originating from this website. Chainsaw Starts but Dies when I Give it Gas. Tips from a Pro 3. In my experience, there are two possible causes of this 'bogging down of the engine' and to resolve this the manufacturer's manual is required or alternatively a little internet investigation. Another plausible explanation for the stalling is attributed to the percentage of ethanol in the fuel.Ethanol readily vaporizes and combines with water in the air to form water.This water stops combustion which is necessary for running the motor.Experts counsel that fuel containing up to 10% ethanol has a tendency to separate varnishes from the gas, resulting in accumulation in fuel lines and tank.The residue counters combustion in the carburetor. Test your stop switch to make sure that it completely stops the motor. Check the tension and condition of your chain. Firstly, what instigates the chainsaw Bog down? The spark plugs spark quality degrades over time, making it impossible to ignite the air-fuel mixture in the combustion chamber. Add your pre-measured oil to the container, Add your pre-measured gasoline AFTER (not before) your oil, Seal your fuel container and swirl, not shake, to thoroughly combine the oil and gasoline, Once properly mixed, your gas and oil mixture will be evenly colored with no variegated streaks, Check your owners manual to locate your chainsaws air filter, Your chainsaws air filter should be visible at this point and can be easily removed from its housing with a screwdriver, After removing the air filter, wash it in soapy water and scrub with a soft-bristle brush until clean, Allow your air filter to dry thoroughly before replacing it in your chainsaw, Make sure that your chainsaw is off and cool (Heat isnt your friend here! 01 - Stihl Chainsaw Spark Arrestor. myimages2[3]="../../../images/top-banner/behindtheforum.jpg" Finally, the ignition system might need to be adjusted or repaired, and for this, you should contact a professional for assistance. Its quite perplexing, but this article will delve deep to unravel why the chainsaw bogs down when you give it gas and how to solve the problem. A carb cleaner spray is an excellent tool for eliminating sticky deposits from your jets and reviving your carburetor. //specify random images below. All help is appreciated. Locate their perfect setting at which the engine doesnt bog down when the throttle is applied. 4. The Job of the Carburetor One controls the fuel mixture when the engine is idling, one controls it when the engine is operating at low speed and one is for high-speed fuel control. Consider cleaning your carburetor and air/fuel filters if the problem persists. Richard lives out in the wild with his other half, Diana Richard. Stihl MS250 dies when I give it gas. | Arborist, Chainsaw & Tree Work Forum Jul 22, 2008. 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.