We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development. File every other cutting tooth with smooth, even, pushing strokes, keeping the round file at a 90-degree (right angle) to the rollers. Home Why Is My Chainsaw Bogging Down? The speed would be perfect, and there would be no unusual sound when the screws are properly aligned. Check the return/recoil spring and starter. You will also reduce kickbacks and increase the overall safety of operating your chainsaw. Oct 29, 2011. removed it and saw functions perfectly. Dirty filters are the main problem. It's all clean no cracks no discoloration nothing. Firewood, Heating and Wood Burning Equipment, Lady on ebay selling hundreds of chainsaws. Guess its time to pull the carby down and check the diaphragm and mesh. The solution is easy and you can do it within a few minutes. It's looking a little tricky to me. First, be sure to read your chainsaws manual to determine whether you need specialized tools to disassemble the carburetor. Although Richard does focus on other home improvement tools, his focus remains on cutting fallen trees or maintaining his backyard via chainsaw tools. The most common causes of a Stihl saw stalling out or stopping include clogged air filter, fouled spark plug, stale gasoline, low compression in the cylinder, insufficient fuel reaching the carburetor, blocked fuel lines, incorrect gap between the spark plug electrodes, a worn or broken drive belt, and inadequate lubrication of the saw chain. There is no hiding from dirt. Fill the tank with the prescribed gas-to-oil ratio. You can work on it directly using a carburetor adjustment tool. Even without an incident of stalling, it is important to carry out regular repairs. You will need to position your file depth gauge so that the arrows are pointing toward the nose of the chainsaw bar. 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. Check that the anti-vibration elements are not damaged, torn, or soft. 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. Make sure to take out the spark plug before removing the filter. If your chainsaw is bogging down when you press the throttle, it can be a sure sign of an incorrect gas-to-oil ratio. It is responsible for mixing fuel and supplying it to the engine. 4. So anyhow, I've ran about 25 hours and took it for a tune up. This feature is commonly found on modern chainsaws, and is designed to make adjusting the chain tension quick and easy. ). Remove the muffler. Stihl MS 180C running problems, bogging down, fuel starvation?? Try to make the right call based on the cost and gravity of the issue. Trying that is by using Stihl Ultra bottles and pouring a little less but I always have some left over gas in the can. Why does my Stihl chainsaw bog down when I give it gas? If your chain starts to spin, loosen the idler screw until it stops. on Chainsaws. 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. Check the edges of the bar for burs and file off if needed. Gum clogs fuel lines and carburetor.The end result is less supply of fuel for complete combustion to run the saw. Take them out and clean them using a delicate brush. Thank You for all replies. After this, check the air filter and carburetor for dirt and debris. Once complete, start the engine and check to make sure the chainsaw is now running correctly. 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. I have a MS250 that's only two years old and has barely been used. This can be quite annoying, especially when you have loads of work piled up and a mechanic isnt available. LancelotLawns said: I bought a stihl bg85 blower/vacuum two days ago. Next, spray a carburetor cleaner into the throat of the carburetor on the side opposite the air filter and throttle linkage. This article thus covers all causes and solutions to why does my chainsaw bogs down when I give it gas problem below: In a chainsaw both fuel starvation or termination of the connection between carburetor and engine can lead to a bog down. http://www.ebay.com/itm/STIHL-017-MS170-018-MS180-Replacement-CARBURETOR-CARB-/130584786959?pt=US_Chainsaws&hash=item1e6775b80f, Quote from: rstarkie on June 06, 2013, 09:50:21 PM, Quote from: Submariner on December 14, 2018, 01:42:06 PM, Running problems Husqvarna 246 and Shindaiwa 457S probably bad fuel issues, Figured Out My Efco 251 Fuel Starvation Problem (shuting off after 4 or 5 min. 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. It is recommended to replace the fuel filter every year to ensure optimal performance and avoid any possible issues. When you depress the trigger, a vent on the carburetor opens, allowing more gas to reach the mixing chamber. Chris Deziel has a bachelor's degree in physics and a master's degree in humanities. Clear all dirt and debris from the saw body, chain, and bar. If your chainsaw dies when you give it gas, you need to ensure that the idle screw (I) and low-speed screw (L) are adjusted correctly. imagelinks[4]="http://www.ezboardwalk.com/" Tighten the idle screw with a screwdriver to fix this and see whether the engine RPMs rise. Now take and post a picture so we can see the exhaust side of the piston. How to Adjust the Carburetor on an Eager Beaver Chainsaw. Sounds like a blocked passage somewhere to me. Then, remove the air filter and fuel filter. 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. If your chainsaw bogs down at full throttle, the air filter and . Adjust the high-speed screw to remedy this issue. Its an essential step in properly maintaining your chainsaw to check and adjust the chain tension. 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. 2. Nearly every weekend you will find us doing small or big jobs or just enjoying our garden. A carb cleaner spray is an excellent tool for eliminating sticky deposits from your jets and reviving your carburetor. Maintenance is the key to avoiding all that. The engine boggs down under a load and when just reving the saw. When the mixture in the carburetor is too lean, the engine races and overheats and the piston can seize. They include inspection of spark plugs, filters, and carburetor adjustment.Sparkplugs are a litmus test to the fuel economy of your chainsaw.A sooty plug is an indication of a rich fuel mixture resulting in frequent misfiring. Inspect the fuel line condition. I doubt it has more than four or five hours on it. Disengage the chain brake and manually advance through the chain until you reach your starting point mark. The reason for. --If you want more backyard tips including recipes, how-tos and more, make sure you subscribe to my youtube channel, Can Chainsaw Chains Be Shortened? Continue with Recommended Cookies. 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. California. The one that is often damaged by compressed air is the one inside the high speed nozzle. Now, remove the filter and clean the dust buildup using a brush. var myimages2=new Array() When dropping a tree, what are you guys watching?. Dealing with a carburetor requires strict guidelines to be followed. Adjusting the H screw will help achieve optimal performance. 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}. For that you require a carburetor cleaner. //specify corresponding links below If the spark plug is cracked or damaged, you will need to replace it. 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. //specify random images below. The consent submitted will only be used for data processing originating from this website. To do this: Loosen each bolt about half way down using flathead screwdriver or small wrench (depending on size). 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. Weather is 30-50 when I'm cutting and I'm trying to run 40:1, 93 only. 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. Get a carburetor repair kit before you begin clearing the blocked jets. ( 2 cents) the new gas seems to clog small motors Mike. Why does my chainsaw stall when gas is given? Secondly, its about time we take a look at why your chainsaw suddenly stops working.The carburetor is like the vein in engines.Once it is clogged, the free flow of air and fuel will be blocked and the engine will be starved of fuel.To quell this issue, wash away the diets using the carburetor cleaner.In some scenarios, washing away or cleaning the carburetor may not be effective, hence, you should consider buying a new carburetor or repairing it.A clogged fuel tank can also cause the chainsaw to stop working.In such cases, endeavor to drain the old file from the chainsaw SNF ensure that the fuel tank is devoid of fuel. If there is none, then take off the cover and locate the carburetor. This is crucial since an idle chain is extremely harmful. Re-attach the carburetor cover and test the saw. It's a small screen you can simply pull out after removing the muffler cover. There are a number of issues to check in a sequence as why a mini chainsaw would bog at full throttle. The remedy is to close the screw, but closing it too far is dangerous for the engine. SO i use gas additive in all my 2 stroke gas mixture, either sta-bil, lucas, hell even sea foam says it will keep 2 stroke gas good for a long time. 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. 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. Why does my Stihl chainsaw bog down when I give it gas? When I remove the cover (13), I find the upper surface of the filter (2) heavily contaminated (this is an aftermarket eBay filter, perhaps it is not sealing properly? By, Read More Chainsaw Too Much Compression: Causes & SolutionContinue, Your email address will not be published. If your chainsaws carburetor is not clogged, the tuning of your carburetor may be to blame. 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. Misaligned screws can cause bogging down, smoking in the chainsaw, and lower performance efficiency. If the band is measuring less than 0.6 mm (0.024 in) at the most worn part, you need to replace the brake band. Now that you know how incorrectly mixed fuel can impact your chainsaw, its time to learn the correct way to combine the right fuel you need to get your motor up and running! Loosening the screw, on the other hand, enriches the mixture with gasoline and lowers the RPMs to a set limit. 1 Hour1 Day1 Week1 MonthForever When a chainsaw bogs down when accelerating, it typically means the engine is not receiving enough fuel or air. I'm having trouble with my Stihl MS180 C-BE chainsaw. Why does the ECHO chainsaw bog down when cutting? This article will help you fix your chainsaw by yourself that starts well but dies just after you push the throttle. The idling (I) screw regulates the mass flow rate of the air-fuel combination entering the engine at idle. When the saw bogs down during cutting, it's usually the high-speed screw you need to adjust . 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. Knowing how to mix fuel properly is the first step to ensuring that your chainsaw will stay up and running for years to come. Chainsaw bogs on full throttle #63708 18/04/15 11:39 PM. If you don't keep the blade oiler reservoir filled, you will have dulled blades, damaged bars, and generally poor performance. If you don't know about the perfect amount . If your chainsaw is bogging down, one of these critical components isnt in its correct balance. The carburetor must be maintained, but first, check that your engines filters are thoroughly cleaned. Older saws have degraded lines which need replacement. Before you start, be sure to read the manufacturers instructions carefully. Lastly, its time to play mixologist. 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! A new chainsaw has some protocols to follow. The chainsaw will bog down or stop running. It's 14in bar and chain, with a new chain on the saw. It runs fine at all other times, cuts well and has good power. Prevent oil from accumulating in the engine. Tips from a Professional, Chainsaw Starts but Wont Idle. } After cleaning the air filter and spark arrestor, you should fill the tank, start the saw and let it warm up for a few minutes before adjusting the carburetor. keep cutting with precision and efficiency. Do not store a dirty chainsaw. My Chainsaw Bogs Down When I Give It Gas; Causes and Solutions [2023]. 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 new fuel doesn't really clog the carbs. He tests chainsaws based on I doubt it has more than four or five hours on it. Then it loses power when cutting. Correcting stalling measures are generally referred to as tune-ups.These procedures help in improving your chainsaw performance. 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. piston and cylinder is clean. The engine needs a precise mixture of air and fuel to run efficiently, and when the ratio is off, it can bog down. Still, if you feel that you can do so yourself, you can watch this YouTube tutorial here.