Another plausible explanation for the stalling is attributed to the percentage of ethanol in the fuel.Ethanol readily vaporizes and combines with water in the air to form water.This water stops combustion which is necessary for running the motor.Experts counsel that fuel containing up to 10% ethanol has a tendency to separate varnishes from the gas, resulting in accumulation in fuel lines and tank.The residue counters combustion in the carburetor. They wrote it up as I ran straight gas through it and seized it. 6. Mix in a premium 2-cycle oil that is ISO-L-EGD and JASO M345 FD certified. Another possible cause of a Stihl chainsaw bogging down is a broken or worn chain. Required fields are marked *. A restricted fuel flow will reduce the power of your Stihl chainsaw. After cleaning, attachit backto the gasoline tank. Cleaning it by immersing it in a soap water solution is preferable. imagelinks2[1]="https://www.youtube.com/c/TheForestryForum?sub_confirmation=1" If your chainsaw starts but does not stay running, the low-speed (L) and idle screw (I) may not be properly set. Dont forget that a maintained chainsaw is a working chainsaw! Maintenance is the key to avoiding all that. If these steps do not solve the problem, you should take the chainsaw to a professional for servicing or further diagnosis. Following are the must-performed maintenance to prevent unwanted bog down. 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. A clean and fixed carburetor is key to achieving full throttle performance. Stihl Chainsaw Bog Down and Fix Pilot View Productions 4.54K subscribers Subscribe 11K views 2 years ago PILOT MOUNTAIN Does your Stihl or other brand chainsaw bog down and refuse. If the spark plug is cracked or damaged, you will need to replace it. Your chainsaws fuel supply system comprises the gasoline tank, fuel filter, fuel lines, and carburetor. 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. Turn your chainsaws bar to ensure even wear and tear. STIHL Chainsaws FAQs | STIHL Product FAQs - STIHL - The Number One function random_imglink(){ The ignition system includes the spark plugs, ignition coil, and exhaust muffler. Tips from a Professional. It should be the first thing to check and clean. It can turn a typical day at work or an enjoyable project into a hassle for its user. 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! Chainsaw bogs down in cut in Chainsaws - forestryforum.com Older saws have degraded lines which need replacement. You may have to look beneath the air filter or in the Users Manual for your saws model number. JavaScript is disabled. If t present cleaning your tank isnt an option. Richard lives out in the wild with his other half, Diana Richard. If the kit comes with welch plugs I take those out too. 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. Chain filing isnt a difficult task and is crucial in maintaining your chainsaw. The first step is to make sure that your chainsaw has enough fuel. Manage Settings I think the problem is ethanol in gas, espesially gas . Start by sharpening the cutting teeth of the blade first. It's looking a little tricky to me. Let the chainsaw cool down if there's excessive smoke release or the chainsaw got heated up. However, now it is acting odd. 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. 8 Reasons a String Trimmer is Running Rough or Bogging Down Why Does Your Chainsaw Bogs Down When You Give It a Gas 1 Hour1 Day1 Week1 MonthForever There are a number of issues to check in a sequence as why a mini chainsaw would bog at full throttle. Stihl Chainsaw Bogs Down When I Give It Gas - WHYIENJOY Click to see full answer. 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. Clean and check the function of your chain brake. Currently I live in Austin, United States. Unscrew the carburetor cover and expose the main jet. Vapor lock occurs when the fuel vapor pressure builds up considerably in the fuel tank and isnt allowed to escape from the tank vents. 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. Poor chainsaw maintenance is one of the lead causes of bogging. Together we put a lot of effort into the maintenance of our gardens over the last few years, we become obsessed with it. There are a number of carburetor-related problems. 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. Home Why Is My Chainsaw Bogging Down? I have ran many 2 stroke motor cycles and atv's and feel as though its a carb problem. I. The majority of chainsaws operate on one of the three following gas-to-oil mixtures: If you have already mistakenly filled your chainsaw with the wrong fuel mixture, you will need to drain the incorrect fuel and replace it with the right mix. The carburetor must be maintained, but first, check that your engines filters are thoroughly cleaned. To ensure any residue is removed, spray the inside of the carburetor with carburetor cleaner and scrub with a stiff brush. Next, youll need to gather the right supplies for the job at hand. Fuel stabilizers are a must-have for any chainsaw owner who fanciesleaving their equipment idle.They help prevent gum formation in fuel tanks. The reason for that may be you're using the saw at altitude or the carburetor adjustment has simply slipped. It is also its orientation that keeps it working smoothly on little or full throttle. Random Image Link Script- By JavaScript Kit(http://www.javascriptkit.com) 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. Where are these located and on what carbs? Run the saw in idle and make sure the idle speed is consistent, and then rev it up and listen for any unexpected changes in engine noise. It is recommended to replace the fuel filter every year to ensure optimal performance and avoid any possible issues. It is difficult to get the proper high-speed adjustment by ear -- most pros use a tachometer. Guess its time to pull the carby down and check the diaphragm and mesh. 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). Stihl 026 Stalling when tilted - Chainsaws - Arbtalk | The Social The Low Speed is the setting I do 1st in or out a 1/4 turn to ensure no hesitation . Obviously pull the carb and exhaust when you do this. Run a check on your chainsaws cooling system. ry=1 Drain the fuel tank and store the gasoline in an appropriate container before bringing it out. Stihl carburetors have three adjustment screws. Cleaning Tips The goal when diagnosing issues with bogging down is to implement a quick fix and avoid any disassembly (like the carburetor). I tried putting new gas in it and starting it up but it didn't make a difference. //specify corresponding links below Check that the anti-vibration elements are not damaged, torn, or soft. The stihl oil from the dealer will have stabilizer already in it, they will usually tune it for you for free (only if you bought it there) I assume you checked/cleaned your air filter. How to Prevent Your Chainsaw from Bogging Down, How Much Compression Should a Chainsaw Have, How to Replace Fuel Lines on a Poulan Chainsaw, How To Reset Echo 58-Volt Battery Charger, Chainsaw Too Much Compression: Causes & Solution. I think I am having the same problem with mine. A Detailed Guide, What Size Chainsaw Do I Need in 2023? Even with the tiniest passage, it can make its way towards anything, including a spark arrestor and spark plug. Check the edges of the bar for burs and file off if needed. As a result, the chainsaw will bog down at full throttle. The engine boggs down under a load and when just reving the saw. No wonder I dont have any luck with the damn things!Sea foam and an ultrasonic and thats it huh what is your success rate?Do you need to pull those small pie shaped plugs? Turning it clockwise will increase fuel flow, and turning it counterclockwise will reduce fuel flow. You are using an out of date browser. Before you start, be sure to read the manufacturers instructions carefully. It idles fine but after you rev it up it looses power. These deposits affect the engines operation and may cause your chainsaw not to start. To remove it you need to depress a small tab and slide the fuel line off. Inspect the clutch center, drum, and spring for any excessive wear. The air filter in your chainsaw protects your chainsaw from dirt and debris by filtering it out before it can reach the engine. The ignition system is essentially a spark plug. You should attend to all of those anyway, before you give it a clean bill of health. Finally, the ignition system might need to be adjusted or repaired, and for this, you should contact a professional for assistance. 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. Next, spray a carburetor cleaner into the throat of the carburetor on the side opposite the air filter and throttle linkage. For a better experience, please enable JavaScript in your browser before proceeding. It has a new spark plug, clean air filter, n Welcome, Guest. Furthermore, the arrestor screen that catches the spark at the exhaust port is prone to carbon deposits. I didn't run straight gas through it and it isn't sized up so I am wanting to dig into the carb myself. Chainsaw Starts Then Stalls | Repair Clinic Here are the solutions for common reasons why chainsaw bogs down after giving it gas - 1. If this is the case, the only alternative is to replace the spark plug. If the fuel mix is old or has not been adjusted properly to the manufacturers specifications, refresh it or adjust it. Inspect the spark plug and replace it if necessary. If the spark arrestor screen has become damaged, you should replace it. When dropping a tree, what are you guys watching?. Make sure to take out the spark plug before removing the filter. When the high-speed screw on the carburetor is open too far, an excess of fuel enters the combustion chamber and not all of it ignites. It's looking a little tricky to me. The air supply is just as important as a fuel supply in any internal combustion engine. The first problem is that when the saw is tilted forwards or the chain brake is disengaged it stalls. Remove the carburetor and check it for damage, cleaning it if necessary. Updated: 00/04/25 Start by identifying the carburetor on your saw. Over 200+ free JavaScripts here! On most models it is either just below or just above the carburetor and secured with a metal clip. These are the low-speed screw (L), the idle screw (I), and the high-speed screw (H). function random_imglink2(){ Chainsaw starts but dies when I give it gas. I hope my epic guides will help you to choose,buy and maintain chainsaw. Conclusion: Why Does My Chainsaw Bogs Down When I Give it Gas in 2023? You are using an out of date browser. Check the fuel hose, famous for cracking. Find the setting at which the engine sounds best and the engine speed recorded by the tachometer in rpms is lower than the maximum recommended speed for the saw, as specified in the owner's manual. The dream of everyone in the lumbering field is to have a powerful and efficient chainsaw devoid of mechanical faults. 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.. The answer is simple; you check your chainsaws owners manual. 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. This feature is commonly found on modern chainsaws, and is designed to make adjusting the chain tension quick and easy. A daily, weekly, and monthly check-up and cleaning must be performed for optimal performance. Begin by draining the fuel tank and draining the existing fuel from the carburetor. imagelinks2[3]="https://www.youtube.com/c/TheForestryForum?sub_confirmation=1" Some issues can be solved at home with the right tools, and some need professional help. Its all clean just a blackish color. Technician. Register today and take advantage of membership benefits. removed it and saw functions perfectly. 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. 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. A dirty arrestor, on the other hand, is the cause of overheating your experience in a bog down. Air Filter Issues. Updated: 00/04/25 Once the faulty seal or gasket is identified, it needs to be replaced, and the engine should be up and running. Most Craftsman models have either a standard Walbro or a Zama carburetor. If the chainsaw continues to stall, the issue could be with the low-speed and idle screws, which should be adjusted. A couple of the small holes were plugged with what seemed like excessive oil, but once I blew on it it was clear. I ask if they checked the carb and they said no. The remedy is to close the screw, but closing it too far is dangerous for the engine. It may not display this or other websites correctly. Here is a visual troubleshoot guide by Foxboss9 discussing the bogging issues and their solution: A Husqvarna chainsaw bogs down due to a clogged air filter or spark arrester. Test your stop switch to make sure that it completely stops the motor. or a blockage in the mesh strainer in the pump chamber. Why Is My Chainsaw Bogging Down? [Easy Fix] 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. Ok I think I can share the pics from this site. We like to help other people maintaining their garden and find cool products to write about. Any factor that might affect supply can cause the chainsaw to bog down. Find the source of the issue and you can easily fix it. Make sure to properly lubricate your chain with chain oil and check the compression in the cylinder. If you experience low compression, pull the muffler and check the piston and cylinder for, Read More How Much Compression Should a Chainsaw HaveContinue, Collect a new fuel line, a pair of pliers, and a screwdriver. Now take and post a picture so we can see the exhaust side of the piston. 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 your chainsaw is bogging down, one of these critical components isnt in its correct balance. Check inside the fuel tank for dirt and debris. Take great care in removing the smaller parts and remove any debris or build up in the carburetor. Locate their perfect setting at which the engine doesnt bog down when the throttle is applied. Chainsaw Stalls When Turned Sideways (Easy Solution) Try to make the right call based on the cost and gravity of the issue. What causes a chainsaw to bog down when accelerating? When the L or idle screws are not properly set, the idle RPMs fall too low, causing the engine to stalland eventually stop. By properly troubleshooting and addressing any potential causes, you can prevent stalling or restarting problems with your Stihl saw. Just took off the muffler and it all looks good. Chainsaw Dies When I Give It Gas | Backyard Mike Consider cleaning your carburetor and air/fuel filters if the problem persists. After checking that, soak the crank seals in motor oil (30w works great) and then give it a go. If your chainsaw is bogging down when you press the throttle, it can be a sure sign of an incorrect gas-to-oil ratio. can cause a chainsaw to bog down when cutting. 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. Most manufacturers do not recommend adjusting the tuning of your chainsaws carburetor outside the hands of a trained professional. To do this: Loosen each bolt about half way down using flathead screwdriver or small wrench (depending on size). If the compression is low, you should clean and check for any damage or wear. How did you get the carb off? Just not sure what I am doing. Stihl Chainsaw - Chainsaw Starts Then Stalls - Repair Clinic 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. This can also be caused by bad fuel. 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. In that case, its best to check your air filter and clean it if needed before moving on to more complex issues. If the saw drops at full throttle, not enough gas or air is reaching that chamber. As a landscape builder, he helped establish two gardening companies. 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. If you experience this scenario, the orientation of your carburetor has likely changed. The above answer may be brief, but I will explain it in more detail, including how to fix a chainsaw that wont start. Disengage the chain brake and manually advance through the chain until you reach your starting point mark. All small holes free of residue. 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. Stihl Chainsaw Bog Down and Fix - YouTube Do not store a dirty chainsaw. 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. Bog down is straight-up the most infuriating issue when using a chainsaw. Don't know how to post a pic of it on here. 30:1 is recommended mostly for older models. Dealing with a carburetor requires strict guidelines to be followed. Continue with Recommended Cookies. The manual should give you the proper gas-to-oil ratio for your particular 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. 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. imagelinks[6]="http://www.ezboardwalk.com/" As a preventative measure, always keep your tank vents clean. 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. The most common causes of a chainsaw bogging down include: Incorrect fuel mixture Dirty carburetor Clogged air filter Dirty fuel filter or fuel lines A combustion system depends on a proper mix of gas, oil, and air. The Basics Explained, Can a Concrete Chainsaw Cut Through Rebar? 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. Stihl MS 170 bogging down, no power | Arborist, Chainsaw & Tree Work Forum Check the spark plug as well to examine the ignition system. Curtis B. Get a carburetor repair kit before you begin clearing the blocked jets. It requires an 8mm or 5/16" nut driver or wrench. The Author The dream of everyone in the lumbering field is to have a powerful and efficient chainsaw devoid of mechanical faults. Clogging usually occurs due to long working hours. If your chainsaw doesnt start, adjust the carburetor screws till it doesnt bog down. 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. When the saw bogs down during cutting, it's usually the high-speed screw you need to adjust . It is responsible for mixing fuel and supplying it to the engine. In most models, it can easily be located by taking off the top cover. Prevent oil from accumulating in the engine. Look over all cables, connections, nuts, and screws to ensure that they are not damaged and need replacement. 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. Always clean the outside of your chainsaw after using it to remove any dust or debris that may be present. Its worth noting that loosening a screw improves the fuel flow rate and enriches the mixture while tightening the screw has the reverse effect. Next, check the spark plug to make sure it is clean and properly connected. Stihl MS180 C-BE boggs down | IH8MUD Forum The muffler looks easy enough to remove but I want to check out the carb. 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. All help is appreciated. The inability to reach full power during a full-throttle trigger is also a sign of bogging down. Adjust the high-speed screw to remedy this issue. (Read 66824 times) (Read 66824 times) 0 Members and 2 Guests are viewing this topic. One of these is not being fed to the chainsaw in the proper ratio. Stihl Chainsaw - starts but won't run - Houzz When a screw (e.g., anL screw) is tightened, the fuel flow to the carburetor is restricted, causing the mixture to be lean. Why does the Husqvarna chainsaw bog down at full throttle? No Power at Full Throttle on My Stihl MS 170 | eHow Then, remove the air filter and fuel filter. Dirt in the air filters This is one of the biggest culprits when dealing with chainsaw bogging down. If it still doesnt look clean, it might be time to replace it. If your chain starts to spin, loosen the idler screw until it stops. Page created in 1.341 seconds with 39 queries. How to Adjust the Carburetor on an Eager Beaver Chainsaw. The engine should start by now. //-->,