stihl chainsaw bogs down when i give it gas

There are a number of carburetor-related problems. Clear all dirt and debris from the saw body, chain, and bar. Chainsaw Bogs Down When Cutting If you would like to change your settings or withdraw consent at any time, the link to do so is in our privacy policy accessible from our home page.. //specify random images below. I ask if they checked the carb and they said no. Go ahead and buy a new fuel filter. In most models, it can easily be located by taking off the top cover. STIHL 026 Bogging Down | Homesteading Forum My name is Ben, and growing up, I practically lived in my parents' backyard. It has the exact ratio requirement of gas and oil for your specific model. Bog down can also occur in the case of a dirty air filter, spark arrestor, or carburetor. The first step is to make sure that your chainsaw has enough fuel. 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. var imagelinks2=new Array() When the saw bogs down during cutting, it's usually the high-speed screw you need to adjust. This is crucial since an idle chain is extremely harmful. Vapor lock occurs when the fuel vapor pressure builds up considerably in the fuel tank and isnt allowed to escape from the tank vents. To carry out the low-speed screw adjustment, follow these steps: The chain may begin to rotate because the mixture is lean enough to engage the clutch after the low-speed adjustment. To ensure any residue is removed, spray the inside of the carburetor with carburetor cleaner and scrub with a stiff brush. As a result, the fuel drawn by the carburetor reduces, causing the engine to stop running. I think I am having the same problem with mine. The spark arrestor is behind the muffler. When the saw bogs down during cutting, it's usually the high-speed screw you need to adjust. The air supply is equally as important as fuel for a combustion engine. Answer: Yes, a chainsaw can bog down if gas is supplied to it. The answer is simple; you check your chainsaws owners manual. The imbalance of these components is one of the major reasons for bogging down. A couple of the small holes were plugged with what seemed like excessive oil, but once I blew on it it was clear. Chainsaw Vapor Lock. Turning the knob will either tighten or loosen the chain, depending on the direction the user turns the knob. Empty and clean, if needed. With the carb apart, make sure all the passages are clear. It is difficult to get the proper high-speed adjustment by ear -- most pros use a tachometer. How do you know what the best gas-to-oil mixture is the best for your chainsaw? var myimages2=new Array() The L screw controls how much fuel enters the carburetor at low speed, whereas the H screw controls how much gasoline flows into the carb at high speed. This helps identify the compression. In case you have lost it, the majority of chainsaws follow the following gas: oil ratio. In some circumstances, vapor locks created in the fuel tank due to insufficient venting cause engine issues. Using compressed air, blow out the inside of the carburetor and around the gasket. 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. Now take and post a picture so we can see the exhaust side of the piston. Heres a quick rundown of how to do just that: Keeping your chainsaw chain sharpened will enable you to keep cutting with precision and efficiency. 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. Consider cleaning your carburetor and air/fuel filters if the problem persists. Bogging down is a universally hated issue by everyone and anyone who uses a chainsaw. Turning it clockwise will increase fuel flow, and turning it counterclockwise will reduce fuel flow. This will keep your chain in place for the next steps. or a blockage in the mesh strainer in the pump chamber. The best/easiest way to do this is to poor some motor oil on the outside of the crankshaft and then also fill the engine with motor oil. Check cooling fins on the cylinder and clean if needed. Its worth noting that loosening a screw improves the fuel flow rate and enriches the mixture while tightening the screw has the reverse effect. The effective supply of Air is key to a healthy chainsaw engine.You should ensure that there is enough air supply to the engine to avoid issues in the combustion chamber.Yourengine will clogonce the incoming air supply is blocked or less in supply.Once you work for a very long time without allowing your Chainsaw to rest, get ready because the filters will clog.These can be accompanied by smoking as a result of rich fuel and oil mixture.The solution to this problem is using compressed air to clean the carburetor jets and passages. A Detailed Guide, What Size Chainsaw Do I Need in 2023? Clean your chainsaw. One of these is not being fed to the chainsaw in the proper ratio. This handy guide will cover the common problems that cause bog down and how you can keep it from happening in the future. A well-maintained chain-saw seldom stalls. Most engine problems can be solved with the previously mentioned adjusting procedure. myimages[3]="../../../images/top-banner/LX25-FreeShipping.jpg" If the carburetor is clogged or not adjusted properly, it can cause the saw to run out of fuel. If the spark plug is cracked or damaged, you will need to replace it. (3 Common Causes). 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. An incorrect mixture is also known as a rich mixture which can be caused when there is too much gas as compared to the oil. This article will help you fix your chainsaw by yourself that starts well but dies just after you push the throttle. Besides causing poor performance in the cut, the fuel that doesn't burn produces smoke that fouls the spark plug and air filter, which compounds performance problems. It is responsible for mixing fuel and supplying it to the engine. Disengage the chain brake and manually advance through the chain until you reach your starting point mark. On most models it is either just below or just above the carburetor and secured with a metal clip. Guess its time to pull the carby down and check the diaphragm and mesh. To do this: Loosen each bolt about half way down using flathead screwdriver or small wrench (depending on size). No particular problem restarting. Cleaning a carburetor on a chainsaw without removing it can be done with a few simple steps. Take them out and clean them using a delicate brush. Why does my Stihl chainsaw bog down when I give it gas? In most cases, clogged air and fuel filters and blocked carburetor jets are causing the problem. 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. Los Angeles, CA 90013 Remove the Cutting Bar - This is probably one of the easiest steps in taking your chainsaw apart because there are only two bolts that need to be loosened before removing the bar completely. All STIHL gasoline-powered engines can be used with up to a 10% (E10) blend of ethanol in the gasoline/engine oil mix. 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. Correcting stalling measures are generally referred to as tune-ups.These procedures help in improving your chainsaw performance. I have never worked on anything this small. Look over all cables, connections, nuts, and screws to ensure that they are not damaged and need replacement. When the mixture in the carburetor is too lean, the engine races and overheats and the piston can seize. We may earn a small commission from affiliate links and paid advertisements. Stihl Chainsaw - starts but won't run - Houzz imagelinks[3]="https://woodmizer.com/Store/Shop/Portable-Sawmills/LX25-Portable-Sawmill?utm_source=forestryforum.com&utm_medium=banner&utm_campaign=lx25&utm_term=2023-02-10&utm_content=800x160" Its an essential step in properly maintaining your chainsaw to check and adjust the chain tension. And these issues can be solved if the problem is identified. Over 200+ free JavaScripts here! Rotate the saw and file the remaining teeth using the same angle and motions as before. Make sure to take out the spark plug before removing the filter. All small holes free of residue. Proceed with adjusting the carburetor adjustment screws to fix a chainsaw that wont start. Besides having an abiding interest in popular science, Deziel has been active in the building and home design trades since 1975. The engine needs a precise mixture of air and fuel to run efficiently, and when the ratio is off, it can bog down. The main reason for an ECHO chainsaw to bog down is the dirty spark arrestor. You must log in or register to reply here. Even without an incident of stalling, it is important to carry out regular repairs. You can have as many as you wish document.write('') I have a MS250 that's only two years old and has barely been used. 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. Fix your Lawnmower with our Lawnmower Troubleshooting tool. A chainsaw is a tool, and no tool is perfect. Tuning of the screws to adjust and align them. If your chainsaw dies when you give it gas, make sure that the low-speed screw (L) and the idle screw (I) are correctly adjusted. After this, check the air filter and carburetor for dirt and debris. If the spark plug is physically damaged, replace it. First, be sure to read your chainsaws manual to determine whether you need specialized tools to disassemble the carburetor. Chain-saw requires constant maintenance to be efficient. Its starts fine, but if you give it gas it will shut off. This means emptying the fuel tank and then restarting and letting the unit run until all the fuel is consumed and the engine stops. You will need to use a file to sharpen your blades monthly or when the debris left from your saw cuts is more dust and fewer wood chips. Chain filing isnt a difficult task and is crucial in maintaining your chainsaw. They are Sthil chains. In case it is not the fuel ratio, it might be dirty or clogged air filters. One of the most common causes is a dirty air filter, which can block air from entering the chainsaw engine and prevent it from getting the oxygen it needs to operate efficiently. Associate Degree. Loosening the screw, on the other hand, enriches the mixture with gasoline and lowers the RPMs to a set limit. Just not sure what I am doing. This may be one of the least anticipated causes of the problem, but it occurs in several cases. Some issues can be solved at home with the right tools, and some need professional help. It should be the first thing to check and clean. Remove the air filter from its housing using a screwdriver. If your chainsaw cannot get enough of either one of those critical components, it will cause the motor to stall. myimages2[1]="../../../images/top-banner/behindtheforum.jpg" It requires an 8mm or 5/16" nut driver or wrench. The chainsaw will bog down or stop running. In that case, its best to check your air filter and clean it if needed before moving on to more complex issues. Start by identifying the carburetor on your saw. Chainsaw Dies When I Give It Gas - Solutions Explained in 2023 Be sure to check your models owners manual for the exact location of the fuel filter as it can vary from model to model. Its all about adjusting the carburetor, and a slight change in the orientation can lead to Chainsaws Bog. How to Adjust the Carburetor on an Eager Beaver Chainsaw. I have ran many 2 stroke motor cycles and atv's and feel as though its a carb problem. This can also be caused by bad fuel. However, if you decide to clean your carburetor use a thinner to clean the gum buildup.Ensure the important plastic parts are removed due to the thinners ability to dissolve plastics. It would do the same thing, die when you give it fuel, It would also idle way down when I was adjusting the carb, not from turning the screws all you had to do was just push on it a little and it would almost die. Stihl chainsaw engine ( motor ) bogging down things to check first. 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. my elevation is 640' above sea level. I think I am having the same problem with mine. document.getElementById("ak_js_1").setAttribute("value",(new Date()).getTime()); Your email address will not be published. The air supply is just as important as a fuel supply in any internal combustion engine. myimages[6]="../../../images/top-banner/EZ-junior.jpg" So I am just wondering how to go about pulling the carb off the easiest way to check out the jets. Clogging usually occurs due to long working hours. Aside from the screw setting, you need to check and make sure that the spark plug is in prime working condition. A Stihl chainsaw can bog down for a variety of reasons. I doubt it has more than four or five hours on it. Next, check the spark plug to make sure it is clean and properly connected. Clean the outside area of the carburetor. Next, spray a carburetor cleaner into the throat of the carburetor on the side opposite the air filter and throttle linkage. Chainsaw Dies after Letting off the Throttle. Tips from a Professional Over 200+ free JavaScripts here! Chainsaw will idle but won't rev. What can cause this? - JustAnswer When the saw bogs down during cutting, it's usually the high-speed screw you need to adjust . The idling (I) screw regulates the mass flow rate of the air-fuel combination entering the engine at idle. Take a measuring beaker and add oil and gasoline of the required amount according to the model of your chainsaw. A clean and fixed carburetor is key to achieving full throttle performance. Why does my Stihl chainsaw dies when I give it gas? Why Does Your Chainsaw Bogs Down When You Give It a Gas On the first day the crew used it, it was bogging down. The new fuel cleans everything really good and what the fuel cleans ends up in the fuel filter or the carburetor screen. A new chainsaw has some protocols to follow. The Low Speed is the setting I do 1st in or out a 1/4 turn to ensure no hesitation . This is usually behind the air filter, but if you have trouble locating it, consult your user manual. Then, remove the air filter and fuel filter. 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. Fill the tank with the prescribed gas-to-oil ratio. The reason for. I didn't run straight gas through it and it isn't sized up so I am wanting to dig into the carb myself. 30:1 is recommended mostly for older models. If you have recently bought the saw or it has been sitting for a while and not used, the best option would be to clean the carburetor and set it according to the factory specs. Continue with Recommended Cookies. Or maybe gas varnish in the screen filter at the base of the metering needle. can cause a chainsaw to bog down when cutting. If your chainsaw wont stay running, there are several steps you can take to try and fix it before seeking professional help. (3 Common Causes). The one that is often damaged by compressed air is the one inside the high speed nozzle. Adjust the main jet by twisting the needle in either direction. Apr 16, 2009. This issue can be fixed with the help of the user manual you received with the chainsaw. Adjust the high-speed screw to remedy this issue. If the spark arrestor is clogged, the chainsaw may run stall or run rough. Finally, the ignition system might need to be adjusted or repaired, and for this, you should contact a professional for assistance. How Do You Repair a Chainsaw That Wont Start? To identify air leakage, you will need to perform a pressure test on your chainsaw. Finally, replace the air filter on the chainsaw. I took it back to the dealer and he said he adjusted something and handed back saying it would work fine. function random_imglink2(){ Updated: 00/04/25 Updated: 00/04/25 L and H on your chainsaw. Although Richard does focus on other home improvement tools, his focus remains on cutting fallen trees or maintaining his backyard via chainsaw tools. Burnt plugs could mean the fuel combustion is too high or high ethanol concentration.To cure this, replace the sooty plug with a new one to prevent misfiring when cutting firewood.Ensure you adjust the carburetor to reduce the amount of gas used. This makes the engine flood and as a result, the chainsaw bogs down. The manual should give you the proper gas-to-oil ratio for your particular chainsaw. Stihl chainsaw engine ( motor ) bogging down things to check first. Why does the chainsaw bog down at full throttle? Check the edges of the bar for burs and file off if needed. STIHL Chainsaw Bogged Down at Full Throttle Chainsaw Stalls When Turned Sideways (Easy Solution) In order to properly access the carburetor and get at its internal components, youll then need to disassemble the carburetor. When a clog occurs, your engine will not get enough air to operate effectively. I love to write about chainsaw for homeowners and professionals. Once youve made the adjustments, make sure to monitor the performance of your saw over the next few days and readjust if necessary. If your chainsaw is bogging down when you press the throttle, it can be a sure sign of an incorrect gas-to-oil ratio. Next, youll need to gather the right supplies for the job at hand. If youve checked both the fuel mixture and air filter on your chainsaw and still experience bog down, it may be time to move on to the carburetor. Suppose that your chainsaws fuel mixture is correct, and youre still experiencing a lag in performance. The last thing anyone wants is a saw that purrs when idling and bogs down when applying gas. To rule out any of these as a potential cause, its important to first check the air filter. If it needs to be cleaned, take care to not damage it by using compressed air or a soft brush. Any of these could be a contributor to a chainsaw that's bogging down. Found the problem. Rotate the fuel supply lever and keep it in the on position while you spray the carburetor cleaner. After I got home I remover the spark plug and looked in there and everything looks good. Obviously pull the carb and exhaust when you do this. 8 Reasons a String Trimmer is Running Rough or Bogging Down