Question: What's the reason for the chainsaw to die under heavy load? After considerable usage, specific engine components like the crank seals and the head gaskets wear out and develop leakages. document.write('') JavaScript is disabled. function random_imglink(){ . Dirty filters are the main problem. If the problem persists, inspect the fuel lines and ignition system. //-->. 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. The Low Speed is the setting I do 1st in or out a 1/4 turn to ensure no hesitation . I didn't run straight gas through it and it isn't sized up so I am wanting to dig into the carb myself. 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. They wrote it up as I ran straight gas through it and seized it. Re-attach the carburetor cover and test the saw. If your chainsaw bogs down after pulling the throttle, the air/fuel delivery system needs to be examined. skytower, Oct 3, 2010. Always clean the outside of your chainsaw after using it to remove any dust or debris that may be present. It's the carburetor's job to regulate the amount of fuel in the cylinder, and it has been preset at the factory to accomplish that task. How to Adjust the Carburetor on an Eager Beaver Chainsaw. I love to write about chainsaw for homeowners and professionals. (3 Common Causes). If the saw drops at full throttle, not enough gas or air is reaching that chamber. Clean the outside area of the carburetor. I have ran many 2 stroke motor cycles and atv's and feel as though its a carb problem. Thoroughly inspect your throttle trigger. Found the problem. The one that is often damaged by compressed air is the one inside the high speed nozzle. Youll want to start by increasing the idle speed until the engine runs smoothly. Check cooling fins on the cylinder and clean if needed. Clean your spark plug and measure the gap. my elevation is 640' above sea level. When the saw bogs down during cutting, it's usually the high-speed screw you need to adjust . Anobstruction in any of these components may disrupt the fuel flow to the engine, leading to the engine bogging down while idling. ). Empty and clean, if needed. Firewood, Heating and Wood Burning Equipment, Lady on ebay selling hundreds of chainsaws. Chris Deziel has a bachelor's degree in physics and a master's degree in humanities. 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" Clean and/or replace the spark arrestor screen. } myimages[6]="../../../images/top-banner/EZ-junior.jpg" Loosening the screw, on the other hand, enriches the mixture with gasoline and lowers the RPMs to a set limit. To carry out the low-speed screw adjustment, follow these steps: The chain may begin to rotate because the mixture is lean enough to engage the clutch after the low-speed adjustment. You should attend to all of those anyway, before you give it a clean bill of health. The spark arrestor is behind the muffler. 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. //specify random images below. 0 Members and 1 Guest are viewing this topic. The chainsaw will bog down or stop running. 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. 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. Clean your chainsaw. Replace it if the quality has deteriorated. Taking all of these potential issues into account and fixing them as needed should help to correct the issue and get your chainsaw running properly. Before you start, be sure to read the manufacturers instructions carefully. You can have as many as you wish By, Read More Chainsaw Too Much Compression: Causes & SolutionContinue, Your email address will not be published. Remove the carburetor and check it for damage, cleaning it if necessary. I have cleaned the air filter, replaced the fuel filter to no effect. 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. You will also reduce kickbacks and increase the overall safety of operating your chainsaw. The consent submitted will only be used for data processing originating from this website. Check the fuel hose, famous for cracking. Chain filing isnt a difficult task and is crucial in maintaining your chainsaw. L and H on your chainsaw. 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 want more backyard tips including recipes, how-tos and more, make sure you subscribe to my youtube channel, Can Chainsaw Chains Be Shortened? 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. We and our partners use cookies to Store and/or access information on a device. Using compressed air, blow out the inside of the carburetor and around the gasket. Some of our partners may process your data as a part of their legitimate business interest without asking for consent. No particular problem restarting. After cleaning, attachit backto the gasoline tank. 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. The effect of air leakage is that it upsets the composition of the air-fuel mixture. Still, if you feel that you can do so yourself, you can watch this YouTube tutorial here. It should measure at 0.5 mm (0.20 in). Save my name, email, and website in this browser for the next time I comment. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. The use of stale ethanol-blended fuel, which creates sticky white deposits over time, is the most typical source of such clogs. It can turn a typical day at work or an enjoyable project into a hassle for its user. As a result, the chainsaw will bog down at full throttle. 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. This dirt and debris can build up and create a clog. 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. I'm having trouble with my Stihl MS180 C-BE chainsaw. Adjust the main jet by twisting the needle in either direction. If your chainsaw bogs down at full throttle, the air filter and . Using a screwdriver, remove the air filter cover on the back of your chainsaw. Use a 50:1 gas-to-oil mixture in your 2-cycle Stihl chainsaw. Prevent oil from accumulating in the engine. When the saw bogs down during cutting, it's usually the high-speed screw you need to adjust. First, be sure to read your chainsaws manual to determine whether you need specialized tools to disassemble the carburetor. 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. on Chainsaws, Started by bkkraft Answered by Patrick, Top 10 Best Chainsaw Bars Tested and Compared for 2023, How does a Chainsaw Carburetor Work? He tests chainsaws based on If you don't keep the blade oiler reservoir filled, you will have dulled blades, damaged bars, and generally poor performance. When dropping a tree, what are you guys watching?. 4. Next, youll need to gather the right supplies for the job at hand. For the spark plug, use a delicate brush, a wire, or a plug spray-on to clean off the thick carbon. For a better experience, please enable JavaScript in your browser before proceeding. If its clogged, replace it with a clean one. To check if theres a vapor lock, unscrew the tanks cap and put it back on again. Your manual will provide detailed instructions on how to do this. Re: Chainsaw bogs on full . Step Three. Allow the cleaner to sit for five to 10 minutes and then wipe away with a cloth. Any of these could be a contributor to a chainsaw that's bogging down. Rotate the saw and file the remaining teeth using the same angle and motions as before. Adjust the high-speed screw to remedy this issue. */ Maintenance is the key to avoiding all that. You are using an out of date browser. 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. no never loaned it out. There are many factors that cause a bog down, but mostly it is the carburetor orientation or blockage. 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. Jul 22, 2008. ), 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. Get a carburetor repair kit before you begin clearing the blocked jets. Gum clogs fuel lines and carburetor.The end result is less supply of fuel for complete combustion to run the saw. Outside of family, He loves grilling and barbequing on his Big Green Egg and Blackstone Griddle, as well as working on projects around the house. 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. It could even bog down when given gas. The spark plugs spark quality degrades over time, making it impossible to ignite the air-fuel mixture in the combustion chamber. If the idle screw is too loose, the mixture will be too rich, and the chainsaw will not run at all, even at idling. 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. It bogs down it seems and stalls out when I open the throttle. Just not sure what I am doing. Clogging slows down the engine from in-taking fuel and air, which results in a bog down at full throttle. Besides having an abiding interest in popular science, Deziel has been active in the building and home design trades since 1975. Once the faulty seal or gasket is identified, it needs to be replaced, and the engine should be up and running. You may have to contend with disassembling your carburetor to correct the mechanical issues bringing about the stalling.Before you to this drastic step first exhaust all possible causes of the problem. As previously stated, the carburetor comprises three screws (L, H, and I) for managing the engine RPMs at low, high, and idle speeds. To remove it you need to depress a small tab and slide the fuel line off. If there is too much gasoline in relation to the amount of oil used, this is known as a rich mixture and hence caused the chainsaw to run in an irregular manner. 2023 "Chainsaw Guru". You may have to look beneath the air filter or in the Users Manual for your saws model number. The speed would be perfect, and there would be no unusual sound when the screws are properly aligned. That should help improve the performance of the chainsaw and resolve the issue of your saw stalling when you give it gas. There are a number of issues to check in a sequence as why a mini chainsaw would bog at full throttle. This jet is usually responsible for controlling the fuel/air mixture. Will start, sound fine, and work for a couple of minutes, until it gets warm. Getting frustrated. function random_imglink2(){ 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. Generally, you will find the fuel filter on the fuel line, usually near the carburetor. Finally, if all previous procedures fail to provide results, the ignition may be at issue. When not constructing or remodeling X-Ray Rooms, Cardiovascular Labs, and Pharmacies, you can find him at home with wife and two daughters. Working outdoors can be such a cathartic experience. The last thing anyone wants is a saw that purrs when idling and bogs down when applying gas. No matter how tight the seal on the tank is, replace the gas every three months and use stabilizer. With the carb apart, make sure all the passages are clear. My name is Chris Ross. The inability to reach full power during a full-throttle trigger is also a sign of bogging down. imagelinks[3]="https://woodmizer.com/Store/Shop/Portable-Sawmills/LX25-Portable-Sawmill?utm_source=forestryforum.com&utm_medium=banner&utm_campaign=lx25&utm_term=2023-02-10&utm_content=800x160" You will need a round file that matches the diameter of your cutters, a flat file, a file guide, and a depth-gauge guide. ( 2 cents) the new gas seems to clog small motors Mike. 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. You will need to position your file depth gauge so that the arrows are pointing toward the nose of the chainsaw bar. When the saw bogs down during cutting, it's usually the high-speed screw you need to adjust. If youre finding your chainsaw to be bogging down, check the issues mentioned above to see if you can save yourself a little time and money. if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'remodelormove_com-leader-2','ezslot_17',164,'0','0'])};__ez_fad_position('div-gpt-ad-remodelormove_com-leader-2-0');If the fuel lines are blocked or restricted, clean or replace them accordingly. 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. The removal of the carburetor fuel line is very sensitive.Make drawings drawing on the lines connections to allow easy re-assembly. Clear all dirt and debris from the saw body, chain, and bar. Aside from the screw setting, you need to check and make sure that the spark plug is in prime working condition. If t present cleaning your tank isnt an option. Although Richard does focus on other home improvement tools, his focus remains on cutting fallen trees or maintaining his backyard via chainsaw tools. 5. Garden Tool Expert Most engine problems can be solved with the previously mentioned adjusting procedure. Sometimes the L adjustment is insufficient, and you must tweak your fuel delivery components, specifically the carburetor and filters. In case you have filled it wrong, drain it out and replace it with the correct mix. From falling trees to slicing timber, the chainsaw is a necessity - especially if you are in the lumber industry. Dont forget that a maintained chainsaw is a working chainsaw! Then it loses power when cutting. The manual should give you the proper gas-to-oil ratio for your particular chainsaw. (Even After Sharpening). Nearly every weekend you will find us doing small or big jobs or just enjoying our garden. Suppose that your chainsaws fuel mixture is correct, and youre still experiencing a lag in performance. Be sure that your oiler is adequately lubricating your bar and chain. Page created in 1.341 seconds with 39 queries. So, lesser air is supplied to the carburetor and the saw bogs down. Why does my chainsaw stall when gas is given? Some issues can be solved at home with the right tools, and some need professional help. Next, you should check the air filter to make sure it is clean and not blocked by dirt or debris. 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. To unclog the spark arrestor, remove it and clean it with a wire brush. Its an essential step in properly maintaining your chainsaw to check and adjust the chain tension. I have never worked on anything this small. Pull the starting chord to check resistance. This blog is written by a group of Garden Tool enthusiasts. /* For instance: It is impossible not to lose power when the firewood chainsaw is being used constantly. If the spark arrestor screen has become damaged, you should replace it. The air supply is equally as important as fuel for a combustion engine. This causes your engines RPMs to increase to a set limit before decreasing. A clean and fixed carburetor is key to achieving full throttle performance. Take a measuring beaker and add oil and gasoline of the required amount according to the model of your chainsaw. I would suggest that in the first instance the carburetor settings are checked. 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. Finally, the ignition system might need to be adjusted or repaired, and for this, you should contact a professional for assistance. Your email address will not be published. The reason could be that you are using the Stihl saw at an altitude, or the carburetor adjustment might have slipped and required fixing. var myimages2=new Array() When the L or idle screws are not properly set, the idle RPMs fall too low, causing the engine to stalland eventually stop. If the kit comes with welch plugs I take those out too. The Forestry Forum is sponsored in part by: Once youve made the adjustments, make sure to monitor the performance of your saw over the next few days and readjust if necessary. It's looking a little tricky to me. If your chainsaw starts but does not stay running, the low-speed (L) and idle screw (I) may not be properly set. It's all clean no cracks no discoloration nothing. Bog down is mostly experienced on full throttle. Additionally, if the air filter is dirty or blocked, that can also lead to a bogging issue. First, disconnect the spark plug wire and turn the engine off. 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. Proper adjustment is critical for safe operation and efficient cutting performance, and the T adjustment allows anyone to determine the accurate tension of their chainsaw chain in a matter of seconds. For a detailed answer, read the causes section above. 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. Also cleaned muffler and replaced spark arrestting screen.All with no luck. A carburetor is a part of a combustion motor that mixes air and fuel in a specific ratio for combustion. If the plug checks out, try removing it and spraying it with aerosol-based cleaner. Adjusting the idle screw, for instance, is a corrective measure for a chainsaw stalling when idle. I think the problem is ethanol in gas, espesially gas . 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. Bogging down is a universally hated issue by everyone and anyone who uses a chainsaw. Clean it with a wire brush. Adjust the screw using only turns before trying to start the trimmer again. Do not store a dirty chainsaw. Any factor that might affect supply can cause the chainsaw to bog down. 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. Finally, check the choke. Make sure to take out the spark plug before removing the filter. If the chain is loose or dull it may result in the saw not having enough power to keep running. Why does my Stihl chainsaw bog down when I give it gas? Correct some carbs can be damaged by compressed air. 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. We may earn a small commission from affiliate links and paid advertisements. I ask if they checked the carb and they said no. The proper fuel mixture is essential for effective, trouble-free operation. 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. Inspect the clutch center, drum, and spring for any excessive wear. Your chainsaws fuel supply system comprises the gasoline tank, fuel filter, fuel lines, and carburetor. Turning the knob will either tighten or loosen the chain, depending on the direction the user turns the knob. 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.

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