I tried putting new gas in it and starting it up but it didn't make a difference. */ There are a number of carburetor-related problems. You must log in or register to reply here. Do not store a dirty chainsaw. Check for any fuel leaks from the motor, fuel tank, or fuel lines. 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. Most Craftsman models have either a standard Walbro or a Zama carburetor. If the spark plug is fouled, it means that it is unable to ignite the fuel being provided to the cylinder. The use of stale ethanol-blended fuel, which creates sticky white deposits over time, is the most typical source of such clogs. We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development. The Low Speed is the setting I do 1st in or out a 1/4 turn to ensure no hesitation . I read on here the other day some carbs can be damaged with compressed air.That would explain why sometimes they cant be fixed maybe the air is ruining something like a check valve I will wait for the masters to chime in on that. The carburetor might need: A clean-up if it's clogged. If the problems remain, examine the fuel lines and carburetor. Older saws have degraded lines which need replacement. I asked my brother to take a look at it since he's fixed a number of chainsaws, and he says it looks like it isn't getting fuel. It is also its orientation that keeps it working smoothly on little or full throttle. or a blockage in the mesh strainer in the pump chamber. As a result, the chainsaw will bog down at full throttle. 01 - Stihl Chainsaw Spark Arrestor. Most engine problems can be solved with the previously mentioned adjusting procedure. Find the source of the issue and you can easily fix it. Why does the Husqvarna chainsaw bog down at full throttle? document.getElementById("ak_js_1").setAttribute("value",(new Date()).getTime()); Your email address will not be published. If the drive belt is worn or broken, replace it with a new one as soon as possible. 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. A carburetor is a part of a combustion motor that mixes air and fuel in a specific ratio for combustion. Chainsaw Vapor Lock. To unclog the spark arrestor, remove it and clean it with a wire brush. Answered by Patrick, Top 10 Best Chainsaw Bars Tested and Compared for 2023, How does a Chainsaw Carburetor Work? All help is appreciated. Once youve made the adjustments, make sure to monitor the performance of your saw over the next few days and readjust if necessary. Just not sure what I am doing. Take the appropriate screwdriver and align them. Fill the tank with the prescribed gas-to-oil ratio. Tips from a Professional, Chainsaw Starts but Wont Idle. Or maybe gas varnish in the screen filter at the base of the metering needle. Solution: Use the user manual to locate the air filter. Detailed Answer. When your saw blade starts to dull, your blade will start producing powder, rather than chips. It is responsible for mixing fuel and supplying it to the engine. I think I am having the same problem with mine. Consider cleaning your carburetor and air/fuel filters if the problem persists. You can also replace the spark arrestor. myimages2[2]="../../../images/top-banner/behindtheforum.jpg" The carburetor has three adjustment screws marked on it. 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. ). This issue can be fixed with the help of the user manual you received with the chainsaw. Inspect the spark plug and replace it if necessary. This dirt and debris can build up and create a clog. Author Topic: Stihl MS 180C running problems, bogging down, fuel starvation?? Still, if you feel that you can do so yourself, you can watch this YouTube tutorial here. 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.. Top 11 Best Chainsaw Sharpener Tested for Sharpening 2023, How do Chainsaw Chaps Work? Adjust the idle speed. It did sit with gas in it for a while, but there are no visible signs of any damage to the carb as a result. When the mixture in the carburetor is too lean, the engine races and overheats and the piston can seize. If you don't keep the blade oiler reservoir filled, you will have dulled blades, damaged bars, and generally poor performance. Follow the re-assembly instructions which are usually supplied with the carburetor kit (Assuming all the jet screws and small parts are accounted for).Alternatively, you can use professional help.Usually, after thorough cleaning of the carburetor and filters, your stalling issues should disappear.However, if the problem persists you may need to enlist the help of a professional. The manual should give you the proper gas-to-oil ratio for your particular chainsaw. It can turn a typical day at work or an enjoyable project into a hassle for its user. Over 200+ free JavaScripts here! 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. Clogging usually occurs due to long working hours. ry=1 Misaligned screws can cause bogging down, smoking in the chainsaw, and lower performance efficiency. imagelinks2[3]="https://www.youtube.com/c/TheForestryForum?sub_confirmation=1" L and H on your chainsaw. no never loaned it out. The consent submitted will only be used for data processing originating from this website. 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. It has the exact ratio requirement of gas and oil for your specific model. can cause a chainsaw to bog down when cutting. They are Sthil chains. The fuel lines or ignition system may have beenaffected if the problems continue despite adjustment. Please loginor register. Stihl MS 180C running problems, bogging down, fuel starvation?? Once the faulty seal or gasket is identified, it needs to be replaced, and the engine should be up and running. It may not display this or other websites correctly. How do you know what the best gas-to-oil mixture is the best for your chainsaw? We like to help other people maintaining their garden and find cool products to write about. You will also reduce kickbacks and increase the overall safety of operating your chainsaw. The air filter in your chainsaw protects your chainsaw from dirt and debris by filtering it out before it can reach the engine. Take a measuring beaker and add oil and gasoline of the required amount according to the model of your chainsaw. Re-attach the carburetor cover and test the saw. Affiliate. function random_imglink(){ Then it loses power when cutting. For a detailed answer, read the causes section above. The idling (I) screw regulates the mass flow rate of the air-fuel combination entering the engine at idle. Thoroughly inspect your throttle trigger. on Chainsaws, Started by H60 Hawk Pilot No particular problem restarting. No matter how tight the seal on the tank is, replace the gas every three months and use stabilizer. 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. Rotate the fuel supply lever and keep it in the on position while you spray the carburetor cleaner. Clean your chainsaw. Clean your spark plug and measure the gap. Hence, many people complain- chainsaw bogs down when I give it gas . It's all clean no cracks no discoloration nothing. If user's chainsaw is bogging down than this is often a sign of improper gas-to-oil ratio. I have never worked on anything this saw. He tests chainsaws based on Weather is 30-50 when I'm cutting and I'm trying to run 40:1, 93 only. Check the return/recoil spring and starter. Run a check on your chainsaws cooling system. 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. 3. on Chainsaws, Started by rapserv Read more about this in, "This is the Type of Gas to Use in a String Trimmer". Tips from a Professional. More so, the chainsaw might bog and refuse to run when you give it gas. */ So, lesser air is supplied to the carburetor and the saw bogs down. I have never worked on anything this small. In most models, it can easily be located by taking off the top cover. This helps identify the compression. Maintenance is the key to sustenance. You will need to position your file depth gauge so that the arrows are pointing toward the nose of the chainsaw bar. If these steps do not solve the problem, you should take the chainsaw to a professional for servicing or further diagnosis. I'm having trouble with my Stihl MS180 C-BE chainsaw. Clean air intake slots on the housing of the starter and inspect your starter cord for any damage. Besides the screw setting, check and ensure that the spark plug is in working condition and that the carburetor and fuel jets are properly serviced. 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. You are using an out of date browser. That should help improve the performance of the chainsaw and resolve the issue of your saw stalling when you give it gas. It requires an 8mm or 5/16" nut driver or wrench. Next, check the spark plug to make sure it is clean and properly connected. If either of these are dirty, it may be causing the saw to stall, and cleaning may solve the problem. On the first day the crew used it, it was bogging down. I didn't run straight gas through it and it isn't sized up so I am wanting to dig into the carb myself. Why doesmy Chainsaw Startand then Stop. The majority of these steps are listed above in the daily maintenance list, but one is of top priority: Chainsaws require maintenance to stay at the top of their game. Check that the anti-vibration elements are not damaged, torn, or soft. 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. Stalling is a symptom of a complication in the chain-saw. For example, if the carburetor is clogged, not tuned correctly, or is contaminated, it may not be metering the right amount of fuel. Frustrating, right? 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. Next, check the spark plug to make sure it is clean and properly connected. Clogging slows down the engine from in-taking fuel and air, which results in a bog down at full throttle. imagelinks[6]="http://www.ezboardwalk.com/" The Author The dream of everyone in the lumbering field is to have a powerful and efficient chainsaw devoid of mechanical faults. JavaScript is disabled. Check, clean, and replace (if necessary) the air filter. If the air filter is clean, then the spark plug should be cleaned and gap adjusted to the manufacturers specifications. The rakers are angled low to high with the high end in front of the cutter. This feature is commonly found on modern chainsaws, and is designed to make adjusting the chain tension quick and easy. Look over all cables, connections, nuts, and screws to ensure that they are not damaged and need replacement. On most models it is either just below or just above the carburetor and secured with a metal clip. Why does my Stihl chainsaw bog down when I give it gas? Youll want to start by increasing the idle speed until the engine runs smoothly. The remedy is to close the screw, but closing it too far is dangerous for the engine. Will start, sound fine, and work for a couple of minutes, until it gets warm. 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. After I got home I remover the spark plug and looked in there and everything looks good. If you observe any evidence of damage or wear on the air filter, I recommended to replace it. Continue with Recommended Cookies. When dropping a tree, what are you guys watching?. A daily, weekly, and monthly check-up and cleaning must be performed for optimal performance. You can have as many as you wish The removal of the carburetor fuel line is very sensitive.Make drawings drawing on the lines connections to allow easy re-assembly. All STIHL gasoline-powered engines can be used with up to a 10% (E10) blend of ethanol in the gasoline/engine oil mix. Start by sharpening the cutting teeth of the blade first. Additionally, inspect the air vents on the engine to make sure they are not blocked by leaves or debris.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'remodelormove_com-banner-1','ezslot_4',157,'0','0'])};__ez_fad_position('div-gpt-ad-remodelormove_com-banner-1-0');if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'remodelormove_com-banner-1','ezslot_5',157,'0','1'])};__ez_fad_position('div-gpt-ad-remodelormove_com-banner-1-0_1');.banner-1-multi-157{border:none!important;display:block!important;float:none!important;line-height:0;margin-bottom:7px!important;margin-left:auto!important;margin-right:auto!important;margin-top:7px!important;max-width:100%!important;min-height:250px;padding:0;text-align:center!important}. From falling trees to slicing timber, the chainsaw is a necessity - especially if you are in the lumber industry. Ozito 25.4 cc 305 bar, starts, easily & comes off choke & idles, will rev up on the ground, pick it up off the ground & it dies & stops, Put back on read more. Before you start, be sure to read the manufacturers instructions carefully. Manage Settings The air supply is equally as important as fuel for a combustion engine. myimages[6]="../../../images/top-banner/EZ-junior.jpg" #1. Set the idle screw to the point just before the chain starts spinning and adjust the low-speed midway between the the two points at which the engine starts to die. First, remove the old fuel line from the fuel tank. before starting the process. Air Filter Issues. The engine boggs down under a load and when just reving the saw. Any of these could be a contributor to a chainsaw that's bogging down. 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. When the chainsaw is unable to hit full power during the full throttle, it's a good sign that your chainsaw is bogging down. Use a 50:1 gas-to-oil mixture in your 2-cycle Stihl chainsaw. I doubt it has more than four or five hours on it. An example of data being processed may be a unique identifier stored in a cookie. Finally, the ignition system might need to be adjusted or repaired, and for this, you should contact a professional for assistance. We and our partners use cookies to Store and/or access information on a device. Check cooling fins on the cylinder and clean if needed. If you don't know about the perfect amount . Too much or little fuel results in engine stalls.The three adjustment screws in the carburetor ((High speed, Low speed and idle) come in handy when preventing stalling.Adjusting the idle screw, for instance, is a corrective measure for a chainsaw stalling when idle. Check the edges of the bar for burs and file off if needed. The engine needs a precise mixture of air and fuel to run efficiently, and when the ratio is off, it can bog down. If the saw drops at full throttle, not enough gas or air is reaching that chamber. The reason for. What causes a chainsaw to bog down when accelerating? These are the low-speed screw (L), the idle screw (I), and the high-speed screw (H). Once youve reassembled the chainsaw and replaced the air filter, check for any other issues, like clogged fuel cap vent, and make sure all the screws have been secured correctly. Remedy this by adjusting the high-speed screw. The dirt in the air filters can often cause the chainsaw to stall. To sharpen the cutting teeth on your chainsaw chain, follow these easy steps: If you are not comfortable sharpening your own chains, be sure to take your chainsaw to a reputable service provider and have it professionally done. The dream of everyone in the lumbering field is to have a powerful and efficient chainsaw devoid of mechanical faults. It idles fine but after you rev it up it looses power. Your manual will provide detailed instructions on how to do this. This article will help you fix your chainsaw by yourself that starts well but dies just after you push the throttle. You cannot mix oil and gas directly in your chainsaws fuel tank and will need an empty, leak-proof fuel container that is just slightly larger than the volume of oil and gas being mixed. This is done by turning the air screw in either direction, depending on the engines response. 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. Remove the carburetor and check it for damage, cleaning it if necessary. Firstly, what instigates the chainsaw Bog down? Nearly every weekend you will find us doing small or big jobs or just enjoying our garden. I took it to the shop for repair, thinking it was the carb but they told me I ran straight gas through it and seized it up. How Much Power Do Stihl 031 AV Chain Saws Have? After this, check the air filter and carburetor for dirt and debris. 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. With the carb apart, make sure all the passages are clear. Any factor that might affect supply can cause the chainsaw to bog down. 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. All help is appreciated. Guess its time to pull the carby down and check the diaphragm and mesh. 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. Now that I'm all grown up with a wife and kids of my own, I hope to share all the knowledge I've gained over the years. Madsens Shop & Supply, Inc.: Carburetor Adjustment on Pro Saws, TEK Indoor Environmental: Stihl Chainsaw Carburetor Adjustment, Beautiful houseplants that also repel mosquitoes, cockroaches and other pests, The Tools for the Adjustment of the Carburetor on Craftsman Chainsaws. Trying that is by using Stihl Ultra bottles and pouring a little less but I always have some left over gas in the can. The first problem is that when the saw is tilted forwards or the chain brake is disengaged it stalls. Once complete, start the engine and check to make sure the chainsaw is now running correctly. First and foremost, you should check that you are using the correct fuel and oil mixture for your chainsaw. 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. imagelinks2[1]="https://www.youtube.com/c/TheForestryForum?sub_confirmation=1" It is recommended to replace the fuel filter every year to ensure optimal performance and avoid any possible issues. If it is stuck, try loosening the nut to free it up. If the chain is loose or dull it may result in the saw not having enough power to keep running. myimages[3]="../../../images/top-banner/LX25-FreeShipping.jpg" This can be done with a vise, clamps, or any type of fastener that will stabilize your chainsaw. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. The speed would be perfect, and there would be no unusual sound when the screws are properly aligned. 2023 "Chainsaw Guru". Nowadays, most chainsaws use a 50:1 ratio, but some use a 40:1. Page created in 1.341 seconds with 39 queries. (3 Common Causes). If your chainsaw wont stay running, there are several steps you can take to try and fix it before seeking professional help. Adjust the high-speed screw to remedy this issue.