You can work on it directly using a carburetor adjustment tool. If the chain is loose or dull it may result in the saw not having enough power to keep running. Ok I got it posted. It is experienced during welding, idling, or full throttle. var ry=Math.floor(Math.random()*myimages2.length) Cleaning Tips The goal when diagnosing issues with bogging down is to implement a quick fix and avoid any disassembly (like the carburetor). I will try to figure out how to get the carb off tomorrow morning. As a result, the engine runs at too high or too low RPMs. The Low Speed is the setting I do 1st in or out a 1/4 turn to ensure no hesitation . It may not display this or other websites correctly. If you need, Read More Stihl chainsaw break inContinue, Carbon build-up in cylinder & piston, bad needle bearing, overused starter spring, oil in the starter system, old or bad fuel, etc can cause too much compression in Chainsaws. 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. ry=1 Mix in a premium 2-cycle oil that is ISO-L-EGD and JASO M345 FD certified. Using compressed air, blow out the inside of the carburetor and around the gasket. Use big lines will for fuel filter lines connected to the inside of the tank.Also, use smaller of two lines for return to the fuel tank from the carburetor from the primer bulb. The dream of everyone in the lumbering field is to have a powerful and efficient chainsaw devoid of mechanical faults. document.getElementById("ak_js_1").setAttribute("value",(new Date()).getTime()); Your email address will not be published. How did you get the carb off? Make sure to properly lubricate your chain with chain oil and check the compression in the cylinder. How do you know what the best gas-to-oil mixture is the best for your chainsaw? Remove the filter from the tanks bottom and clean the stale gasoline deposits from the filters jets with a metal wire. Location. 4. New Husqvarna 550XP had to be reprogrammed. Adjust the main jet by twisting the needle in either direction. Clogging usually occurs due to long working hours. I have ran many 2 stroke motor cycles and atv's and feel as though its a carb problem. Chris Deziel has a bachelor's degree in physics and a master's degree in humanities. Clean and/or replace the spark arrestor screen. This site is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. document.write('') Why does the Husqvarna chainsaw bog down at full throttle? If your chainsaw wont stay running, there are several steps you can take to try and fix it before seeking professional help. Yea, its not rocket science but reality. They are Sthil chains. Remedy this by adjusting the high-speed screw. Since the engine turns off shortly after starting your weed eater, the idle speed may just be too slow. This issue can be fixed with the help of the user manual you received with the chainsaw. This is usually behind the air filter, but if you have trouble locating it, consult your user manual. Even without an incident of stalling, it is important to carry out regular repairs. 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. keep cutting with precision and efficiency. if (ry==0) Why does the ECHO chainsaw bog down when cutting? Oct 29, 2011. The Forestry Forum is sponsored in part by: Once complete, start the engine and check to make sure the chainsaw is now running correctly. Here are the solutions for common reasons why chainsaw bogs down after giving it gas - 1. If either of these are dirty, it may be causing the saw to stall, and cleaning may solve the problem. 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. Make sure to take out the spark plug before removing the filter. He pledges to come up with new knowledge about chainsaws every once in a while. There are a number of issues to check in a sequence as why a mini chainsaw would bog at full throttle. When a chainsaw bogs down when accelerating, it typically means the engine is not receiving enough fuel or air. There are several factors may make your saw not work properly. The dirt in the air filters can often cause the chainsaw to stall. If the kit comes with welch plugs I take those out too. var imagelinks=new Array() If the saw drops at full throttle, not enough gas or air is reaching that chamber. The proper fuel mixture is essential for effective, trouble-free operation. . It's 14in bar and chain, with a new chain on the saw. If the air filter is clean, then the spark plug should be cleaned and gap adjusted to the manufacturers specifications. If needed, purchase the tools from a hardware store and make sure you have personal protective equipment (goggles, gloves, etc. ) Start by identifying the carburetor on your saw. Drain the fuel tank and store the gasoline in an appropriate container before bringing it out. Don't know how to post a pic of it on here. When not constructing or remodeling X-Ray Rooms, Cardiovascular Labs, and Pharmacies, you can find him at home with wife and two daughters. To do this: Loosen each bolt about half way down using flathead screwdriver or small wrench (depending on size). Chainsaw Vapor Lock. I didn't run straight gas through it and it isn't sized up so I am wanting to dig into the carb myself. If the problems remain, examine the fuel lines and carburetor. } Inspect the fuel line condition. Why does my Stihl chain saw bog down when I'm cutting? 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. Additionally, it is a good idea to check the spark plug to make sure it is in good condition. Although Richard does focus on other home improvement tools, his focus remains on cutting fallen trees or maintaining his backyard via chainsaw tools. On mybackyardlife.com, I share tips on everything from grilling/smoking meat with my Big Green Egg to relaxing in the pool with my family. Step Three. If you don't know about the perfect amount . 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. Your chainsaws fuel supply system comprises the gasoline tank, fuel filter, fuel lines, and carburetor. 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. var ry=Math.floor(Math.random()*myimages.length) :bang: I guess that all depends on your oppinion of what "compressed air" is or isn't Internal check valves? 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. If your chainsaw doesnt start, adjust the carburetor screws till it doesnt bog down. When the saw bogs down during cutting, it's usually the high-speed screw you need to adjust. var myimages2=new Array() The rakers are angled low to high with the high end in front of the cutter. skytower, Oct 3, 2010. Fix your Lawnmower with our Lawnmower Troubleshooting tool. The fuel lines or ignition system may have beenaffected if the problems continue despite adjustment. removed it and saw functions perfectly. Check the edges of the bar for burs and file off if needed. If user's chainsaw is bogging down than this is often a sign of improper gas-to-oil ratio. The effect of air leakage is that it upsets the composition of the air-fuel mixture. If it needs to be cleaned, take care to not damage it by using compressed air or a soft brush. #1. When a screw (e.g., anL screw) is tightened, the fuel flow to the carburetor is restricted, causing the mixture to be lean. A Stihl chainsaw can bog down for a variety of reasons. It idles fine but after you rev it up it looses power. Chainsaw starts but dies when I give it gas. A loose spark plug wire or incorrect gap can also be responsible for a poorly running string trimmer that bogs down. Weather is 30-50 when I'm cutting and I'm trying to run 40:1, 93 only. on Chainsaws, Started by bkkraft 2023 "Chainsaw Guru". What Would Cause a STIHL Trimmer to Not Start? Maintenance is the key to avoiding all that. Furthermore, its possible that the carburetor is not getting the right amount of fuel, so its important to check the fuel lines and adjust the carburetor accordingly. ALL RIGHTS RESERVED! Even with the tiniest passage, it can make its way towards anything, including a spark arrestor and spark plug. When the L or idle screws are not properly set, the idle RPMs fall too low, causing the engine to stalland eventually stop. Chainsaw will idle but won't rev. What can cause this? - JustAnswer Classifieds - Engine/Transmission/Transfer Case, BJ42 | FJ43 | BJ44 | FJ45 | FJ45LV | HJ47, North American Clubhouses - Central Region, CA.AB- Rocky Mountain Land Cruiser Association, CO/WY- Horsetooth 4 Wheelers Cruiser Club, TX- Lone Star Land Cruisers - Austin Chapter, TX- The White Trash of the Elwood Chapter, CA.BC- Okanagan-Similkameen Land Cruisers, NV- Battle Born Cruisers of Northern Nevada, Vendors: Accessories - Electronics - Recovery, sthil pics pictures by naturalite - Photobucket, http://s820.photobucket.com/albums/zz130/naturalite/sthil pics/. Finally, replace the fuel filter and air filter and reconnect the spark plug. No particular problem restarting. By properly troubleshooting and addressing any potential causes, you can prevent stalling or restarting problems with your Stihl saw. After checking and cleaning the filters, see if the carburetor orientation is proper. You should use mid-grade unleaded gasoline with a minimum octane rating of 89 and a premium two-cycle oil. Take great care in removing the smaller parts and remove any debris or build up in the carburetor. ), 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. if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'remodelormove_com-leader-4','ezslot_20',165,'0','0'])};__ez_fad_position('div-gpt-ad-remodelormove_com-leader-4-0');if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'remodelormove_com-leader-4','ezslot_21',165,'0','1'])};__ez_fad_position('div-gpt-ad-remodelormove_com-leader-4-0_1');.leader-4-multi-165{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}Adjusting the carburetor on a Craftsman chainsaw is a relatively simple process, but there are several steps youll need to follow. Stihl Chainsaw - starts but won't run - Houzz The removal of the carburetor fuel line is very sensitive.Make drawings drawing on the lines connections to allow easy re-assembly. If the problem persists, inspect the fuel lines and ignition system. Chainsaw Dies after Letting off the Throttle. Tips from a Professional If the plug checks out, try removing it and spraying it with aerosol-based cleaner. When a clog occurs, your engine will not get enough air to operate effectively. . Consider cleaning your carburetor and air/fuel filters if the problem persists. imagelinks[1]="http://www.ezboardwalk.com/" The carburetor might need: A clean-up if it's clogged. on Chainsaws. If these steps do not solve the problem, you should take the chainsaw to a professional for servicing or further diagnosis. 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. Why does my chainsaw stall when gas is given? The first problem is that when the saw is tilted forwards or the chain brake is disengaged it stalls. Stihl MS 180C running problems, bogging down, fuel starvation?? in function random_imglink(){ California. The new fuel cleans everything really good and what the fuel cleans ends up in the fuel filter or the carburetor screen. This article will help you fix your chainsaw by yourself that starts well but dies just after you push the throttle. function random_imglink2(){ 20,427 satisfied customers. First and foremost, you should check that you are using the correct fuel and oil mixture for your chainsaw. myimages2[3]="../../../images/top-banner/behindtheforum.jpg" 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. Turn your chainsaws bar to ensure even wear and tear. STIHL Chainsaw Bogged Down at Full Throttle Check the fuel hose, famous for cracking. If your chainsaw bogs down after pulling the throttle, the air/fuel delivery system needs to be examined. Next, check the spark plug to make sure it is clean and properly connected. Why Does My Chainsaw Bogs Down When I Give it Gas? 5 Causes 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. Random Image Link Script- By JavaScript Kit(http://www.javascriptkit.com) 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. //specify random images below. But soon loses power and bogs down. Adjusting the H screw will help achieve optimal performance. The consent submitted will only be used for data processing originating from this website. Tighten the idle screw with a screwdriver to fix this and see whether the engine RPMs rise. 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. After the overhaul of the piston assembly I used this saw to cut up three rather large downed trees, and some other work. random_imglink() Kilikoba Nashoba 858 subscribers 46K views 7 years ago This video is about likely causes of a Stihl chainsaw engine. (Even After Sharpening). With the carb apart, make sure all the passages are clear. Page created in 1.341 seconds with 39 queries. Get a carburetor repair kit before you begin clearing the blocked jets. In case you have lost it, the majority of chainsaws follow the following gas: oil ratio. Once the faulty seal or gasket is identified, it needs to be replaced, and the engine should be up and running. The muffler looks easy enough to remove but I want to check out the carb. Chain filing isnt a difficult task and is crucial in maintaining your chainsaw. Affiliate. We also recommend that if a unit will be left unused for more than 30 days that it be stored "dry". Turning the knob will either tighten or loosen the chain, depending on the direction the user turns the knob. Anobstruction in any of these components may disrupt the fuel flow to the engine, leading to the engine bogging down while idling. Gum clogs fuel lines and carburetor.The end result is less supply of fuel for complete combustion to run the saw. If the fuel mix is old or has not been adjusted properly to the manufacturers specifications, refresh it or adjust it. You can have as many as you wish 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. It's looking a little tricky to me. Chainsaws can start and then stop for a variety of reasons, so its important to take the time to diagnose the problem before attempting to start it again. All help is appreciated. No matter how tight the seal on the tank is, replace the gas every three months and use stabilizer. It should be the first thing to check and clean. 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. myimages[1]="../../../images/top-banner/ez50-banner.jpg" 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. I think the problem is ethanol in gas, espesially gas . Your email address will not be published. var myimages=new Array() myimages2[2]="../../../images/top-banner/behindtheforum.jpg" Why Does My Chainsaw Bog Down When I give it Gas? How Do You Repair a Chainsaw That Wont Start? It's all clean no cracks no discoloration nothing. The engine should start by now. This is partly due to clogged filters resulting from long working hours and less air supply to the carburetor (which will be discussed later). 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. For instance: It is impossible not to lose power when the firewood chainsaw is being used constantly. myimages[2]="../../../images/top-banner/BladesFreeShip.jpg" It has the exact ratio requirement of gas and oil for your specific model. JavaScript is disabled. Look over all cables, connections, nuts, and screws to ensure that they are not damaged and need replacement. document.write('') Check the return/recoil spring and starter. One of these is not being fed to the chainsaw in the proper ratio. imagelinks[2]="https://woodmizer.com/us/Sawmill-Blades?utm_source=forestryforum.com&utm_medium=banner&utm_campaign=sawmillblades&utm_term=2022-05-01&utm_content=800x160" Misaligned screws can cause bogging down, smoking in the chainsaw, and lower performance efficiency. I doubt it has more than four or five hours on it. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. I do sharpen the chains myself using an Oregon 511A. (3 Common Causes). The carburetor must be maintained, but first, check that your engines filters are thoroughly cleaned. Using a screwdriver, remove the air filter cover on the back of your chainsaw. Vapor lock occurs when the fuel vapor pressure builds up considerably in the fuel tank and isnt allowed to escape from the tank vents. When the saw bogs down during cutting, it's usually the high-speed screw you need to adjust. You will need a round file that matches the diameter of your cutters, a flat file, a file guide, and a depth-gauge guide. or a blockage in the mesh strainer in the pump chamber. All small holes free of residue. The chainsaw will bog down or stop running. A thick fuel mixture can cause excessive carbon around the spark plug, which can even kill a chainsaw. The (I) screw is a butterfly valve that controlsidle RPMs by raising or lowering the flow of the air-fuel mixture. Why doesmy Chainsaw Startand then Stop. Also cleaned muffler and replaced spark arrestting screen.All with no luck. 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. Then, remove the air filter and fuel filter. Correcting stalling measures are generally referred to as tune-ups.These procedures help in improving your chainsaw performance. The L screw, for example, controls the gasoline entering the carburetor at low/idle RPMs, whereas the H screw regulates the fuel flow at higher RPMs or wide-open throttle (WOT). #7. When dropping a tree, what are you guys watching?. imagelinks[6]="http://www.ezboardwalk.com/" If binding/catching occurs, or if the motor does not return to an idle state, your chainsaw needs to make a visit to a service provider before being used again. It bogs down it seems and stalls out when I open the throttle. Find the screw to adjust the idle speed. Jul 22, 2008. 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. Remove the muffler. 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! Start the chainsaw for a few seconds to make sure the carburetor is functioning correctly.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[320,50],'remodelormove_com-large-leaderboard-2','ezslot_10',158,'0','0'])};__ez_fad_position('div-gpt-ad-remodelormove_com-large-leaderboard-2-0'); To unclog a chainsaw carburetor, youll need to thoroughly clean the carburetor and replace the air filter. Apr 16, 2009. It may not display this or other websites correctly. I tried putting new gas in it and starting it up but it didn't make a difference. Clean or replace filters located in the fuel tank of your chain saw. Your email address will not be published. The idling (I) screw regulates the mass flow rate of the air-fuel combination entering the engine at idle. File every other cutting tooth with smooth, even, pushing strokes, keeping the round file at a 90-degree (right angle) to the rollers. When your saw blade starts to dull, your blade will start producing powder, rather than chips. If you observe any evidence of damage or wear on the air filter, I recommended to replace it. Remove the air filter from its housing using a screwdriver. ,