If your chainsaw is bogging down when you press the throttle, it can be a sure sign of an incorrect gas-to-oil ratio. Check the spark plug as well to examine the ignition system. This can also be caused by bad fuel. This handy guide will cover the common problems that cause bog down and how you can keep it from happening in the future. myimages2[3]="../../../images/top-banner/behindtheforum.jpg" Chris Deziel has a bachelor's degree in physics and a master's degree in humanities. Then, disconnect the old fuel line from the, Read More How to Replace Fuel Lines on a Poulan ChainsawContinue, Pull out your battery from the chainsaw, and press the battery button sustainably for a minimum of 5 seconds before you release it. Carb. 3. It's all clean no cracks no discoloration nothing. 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. If t present cleaning your tank isnt an option. The spark arrestor is a small screen that prevents the engine from emitting sparks. More so, the chainsaw might bog and refuse to run when you give it gas. ry=1 ). Bog down is mostly experienced on full throttle. On the first day the crew used it, it was bogging down. //specify corresponding links below We pulled out the carb and opened it up, and the check valve looked perfect and everything was as clean and shiny as you'd expect a basically brand new saw to look. myimages[4]="../../../images/top-banner/ez50-banner.jpg" Clean it with a wire brush. Location. . #7. */ Next, youll need to gather the right supplies for the job at hand. Manage Settings The air filter in your chainsaw protects your chainsaw from dirt and debris by filtering it out before it can reach the engine. (Read 66824 times) (Read 66824 times) 0 Members and 2 Guests are viewing this topic. 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. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. Following are the must-performed maintenance to prevent unwanted bog down. Check inside the fuel tank for dirt and debris. It is recommended to replace the fuel filter every year to ensure optimal performance and avoid any possible issues. Imagine you are about to cut down or in the middle of cutting down a tree or wood, and your chainsaw bog down. After I got home I remover the spark plug and looked in there and everything looks good. My name is Chris Ross. They are Sthil chains. Use a 50:1 gas-to-oil mixture in your 2-cycle Stihl chainsaw. 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. The inability to reach full power during a full-throttle trigger is also a sign of bogging down. You can work on it directly using a carburetor adjustment tool. The chainsaw will bog down or stop running. This article will help you fix your chainsaw by yourself that starts well but dies just after you push the throttle. It has a new spark plug, clean air filter, n Welcome, Guest. Air Filter Issues. The Basics Explained, Can a Concrete Chainsaw Cut Through Rebar? Make sure it is moveable and not stuck in the open or closed position. Remove the muffler. 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. 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. Please loginor register. In case you have filled it wrong, drain it out and replace it with the correct mix. When dropping a tree, what are you guys watching?. Take great care in removing the smaller parts and remove any debris or build up in the carburetor. Pull the starting chord to check resistance. Even if you are a novice chainsaw operator, these spark plugsshould be updated at least once a year. How do you know what the best gas-to-oil mixture is the best for your chainsaw? 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. Chainsaw bogs on full throttle #63708 18/04/15 11:39 PM. If your chainsaws carburetor is not clogged, the tuning of your carburetor may be to blame. A daily, weekly, and monthly check-up and cleaning must be performed for optimal performance. Although Richard does focus on other home improvement tools, his focus remains on cutting fallen trees or maintaining his backyard via chainsaw tools. Re: Stihl MS 180C running problems, bogging down, fuel starvation?? When the saw bogs down during cutting, it's usually the high-speed screw you need to adjust. Re: Chainsaw bogs on full throttle . document.write('') if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[320,50],'remodelormove_com-box-3','ezslot_6',175,'0','0'])};__ez_fad_position('div-gpt-ad-remodelormove_com-box-3-0');if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[320,50],'remodelormove_com-box-3','ezslot_7',175,'0','1'])};__ez_fad_position('div-gpt-ad-remodelormove_com-box-3-0_1');.box-3-multi-175{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:50px;padding:0;text-align:center!important}Lastly, if the air filter is dirty or clogged it will restrict the air flow and cause the saw to lose power. Find the source of the issue and you can easily fix it. How to Hang a Chainsaw to keep it Safe and Protected in 2023? myimages[6]="../../../images/top-banner/EZ-junior.jpg" 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. Even without an incident of stalling, it is important to carry out regular repairs. The effect of air leakage is that it upsets the composition of the air-fuel mixture. If your chainsaw is bogging down when you press the throttle, it can be a sure sign of an incorrect gas-to-oil ratio. A well-maintained chain-saw seldom stalls. All fuel supply components must be independently examined to address these difficulties, as discussed in the following sections. 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. If your chainsaw doesnt start, adjust the carburetor screws till it doesnt bog down. Make sure to properly lubricate your chain with chain oil and check the compression in the cylinder. They wrote it up as I ran straight gas through it and seized it. The engine boggs down under a load and when just reving the saw. 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. Take the appropriate screwdriver and align them. A "rich mixture" occurs when you have too much gasoline with the amount of oil in your fuel mixture, resulting in a poorly operating chainsaw. } Why does my Stihl chainsaw bog down when I give it gas? When the chainsaw is unable to hit full power during the full throttle, it's a good sign that your chainsaw is bogging down. When the mixture in the carburetor is too lean, the engine races and overheats and the piston can seize. +1-213-221-0119, By using this website I agree with the Disclaimer. Turning it clockwise will increase fuel flow, and turning it counterclockwise will reduce fuel flow. The best way to clean the spark arrestor screen is to unplug the spark plug wire and use a metal brush. Turn your chainsaws bar to ensure even wear and tear. Why Is My Chainsaw Bogging Down? Chainsaw bogging down after starting or not starting at all is a common problem for a lot of chainsaw users. Over 200+ free JavaScripts here! //specify random images below. Try to make the right call based on the cost and gravity of the issue. 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. Adjust the high-speed screw to remedy this issue. 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! Ben has a bachelors degree in construction engineering. The issue of chainsaw bog down can be very calamitous, and it oozes a great deal of frustration. Anobstruction in any of these components may disrupt the fuel flow to the engine, leading to the engine bogging down while idling. 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. The inability to reach full power during a full-throttle trigger is also a sign of bogging down.Remedy this by adjusting the high-speed screw. These screws are in charge of regulating the fuel flow to the carburetor under varied load circumstances. Jul 22, 2008. 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. Oct 29, 2011. After the overhaul of the piston assembly I used this saw to cut up three rather large downed trees, and some other work. I have never worked on anything this saw. Using 10x magnifying classes I discovered a tiny piece of fiber partially clogging the high speed jet in the carb. Find the screw to adjust the idle speed. Home Why Is My Chainsaw Bogging Down? Correcting stalling measures are generally referred to as tune-ups.These procedures help in improving your chainsaw performance. That explains why they run worse after i rebuild them! If the kit comes with welch plugs I take those out too. 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. var imagelinks=new Array() myimages2[1]="../../../images/top-banner/behindtheforum.jpg" Re-attach the carburetor cover and test the saw. 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. 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. 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.. 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}. Fix your Lawnmower with our Lawnmower Troubleshooting tool. Stihl carburetors have three adjustment screws. The consent submitted will only be used for data processing originating from this website. Check that the anti-vibration elements are not damaged, torn, or soft. (Even After Sharpening). 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. Clean and check the function of your chain brake. This makes the engine flood and as a result, the chainsaw bogs down. 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. You should use mid-grade unleaded gasoline with a minimum octane rating of 89 and a premium two-cycle oil. I think I am having the same problem with mine. Cleaning your chainsaws air filter can lead to an improvement in performance and really should be done as part of your routine chainsaw maintenance schedule. myimages[1]="../../../images/top-banner/ez50-banner.jpg" It may not display this or other websites correctly. if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'remodelormove_com-medrectangle-3','ezslot_1',155,'0','0'])};__ez_fad_position('div-gpt-ad-remodelormove_com-medrectangle-3-0');if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'remodelormove_com-medrectangle-3','ezslot_2',155,'0','1'])};__ez_fad_position('div-gpt-ad-remodelormove_com-medrectangle-3-0_1');.medrectangle-3-multi-155{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}You should also check the chain tension and sharpness and consider replacing the chain if that is necessary. Turning the knob will either tighten or loosen the chain, depending on the direction the user turns the knob. To check if theres a vapor lock, unscrew the tanks cap and put it back on again. Unscrew the carburetor cover and expose the main jet. var ry=Math.floor(Math.random()*myimages2.length) 0 Members and 1 Guest are viewing this topic. Aside from the screw setting, you need to check and make sure that the spark plug is in prime working condition. I ask if they checked the carb and they said no. Nearly every weekend you will find us doing small or big jobs or just enjoying our garden. This is done by turning the air screw in either direction, depending on the engines response. 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! No matter how tight the seal on the tank is, replace the gas every three months and use stabilizer. Use low pressure compressed air, and a stiff paint brush bristle to check them all. All internal or external factors that reduce the supply of combustible air causes bogging down. This issue can be fixed with the help of the user manual you received with the chainsaw. If your chainsaw bogs down after pulling the throttle, the air/fuel delivery system needs to be examined. } Bog down is straight-up the most infuriating issue when using a chainsaw. Why does the chainsaw bog down at full throttle? In some circumstances, vapor locks created in the fuel tank due to insufficient venting cause engine issues. Or maybe gas varnish in the screen filter at the base of the metering needle. 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. The (I) screw is a butterfly valve that controlsidle RPMs by raising or lowering the flow of the air-fuel mixture. Adjust the idle speed. The Author The dream of everyone in the lumbering field is to have a powerful and efficient chainsaw devoid of mechanical faults. Do not store a dirty chainsaw. Using a screwdriver, remove the air filter cover on the back of your chainsaw. Run a check on your chainsaws cooling system. I guage the rakers and grind them when necessary. 30:1 is recommended mostly for older models. Why does my chainsaw stall when gas is given? Generally, you will find the fuel filter on the fuel line, usually near the carburetor. Hello, and thanks for visiting my site! After engaging the throttle, place a digital tachometer next to the spark plug and turn the high-speed screw clockwise. 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. Los Angeles, CA 90013 So, lesser air is supplied to the carburetor and the saw bogs down. The main reason for an ECHO chainsaw to bog down is the dirty spark arrestor. We may earn a small commission from affiliate links and paid advertisements. If a chainsaw is bogging down when it is throttled, this indicates that the gasoline to oil ratio supplied to the saw has been incorrect. These are the low-speed screw (L), the idle screw (I), and the high-speed screw (H). Locate all the screws on the carburetor and check if they are all aligned. 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. To view the purposes they believe they have legitimate interest for, or to object to this data processing use the vendor list link below. This means emptying the fuel tank and then restarting and letting the unit run until all the fuel is consumed and the engine stops. It is responsible for mixing fuel and supplying it to the engine. Why does my Chainsaw Bog down when I Pull the Trigger? The air supply is equally as important as fuel for a combustion engine. Your email address will not be published. I'm having trouble with my Stihl MS180 C-BE chainsaw. //specify corresponding links below 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. Anyone have any suggestions? After reassembling the carburetor make sure the gaskets and seals are airtight. ), Using a specialty tool called a scrench or a combination wrench, loosen the bar nuts holding the clutch cover in place, Tighten the chain tensioning screw using your combination wrench or scrench while raising the tip of the bar and, Continue to tighten the chain until there is no slack on the underside of the bar, but it can still be freely pulled by hand, Tighten the bar nuts, return the clutch cover to its rightful place, and ensure that the bar is secure. Maintenance is the key to avoiding all that. To ensure any residue is removed, spray the inside of the carburetor with carburetor cleaner and scrub with a stiff brush. As a landscape builder, he helped establish two gardening companies.