No matter how tight the seal on the tank is, replace the gas every three months and use stabilizer. Older saws have degraded lines which need replacement. On the High speed setting ensure that you do not have it running to lean (MAX RPM) I usually suggest max RPM (once warmed up) then turn it out until it diesels and then 1/8 turn in (leaner) . Vapor lock occurs when the fuel vapor pressure builds up considerably in the fuel tank and isnt allowed to escape from the tank vents. 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. 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. When not constructing or remodeling X-Ray Rooms, Cardiovascular Labs, and Pharmacies, you can find him at home with wife and two daughters. Run a check on your chainsaws cooling system. Locate all the screws on the carburetor and check if they are all aligned. In order to properly access the carburetor and get at its internal components, youll then need to disassemble the carburetor. In case you have filled it wrong, drain it out and replace it with the correct mix. Thank You for all replies. Re: Chainsaw bogs on full throttle . It is recommended to replace the fuel filter every year to ensure optimal performance and avoid any possible issues. 1 Hour1 Day1 Week1 MonthForever Anyone have any suggestions? Location.
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. All STIHL gasoline-powered engines can be used with up to a 10% (E10) blend of ethanol in the gasoline/engine oil mix. Correct some carbs can be damaged by compressed air. Check the fuel tank for the correct fuel and oil mixture, filling it up if necessary. Consider cleaning your carburetor and air/fuel filters if the problem persists. 2. A carburetor is a part of a combustion motor that mixes air and fuel in a specific ratio for combustion. Using a screwdriver, remove the air filter cover on the back of your chainsaw. 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. 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. myimages[2]="../../../images/top-banner/BladesFreeShip.jpg"
or a blockage in the mesh strainer in the pump chamber. For a detailed answer, read the causes section above. If its clogged, replace it with a clean one. This can be quite annoying, especially when you have loads of work piled up and a mechanic isnt available. Carb. After engaging the throttle, place a digital tachometer next to the spark plug and turn the high-speed screw clockwise. Heres a quick rundown of how to do just that: Keeping your chainsaw chain sharpened will enable you to keep cutting with precision and efficiency. If the problems remain, examine the fuel lines and carburetor. 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. Dealing with a carburetor requires strict guidelines to be followed. In most models, it can easily be located by taking off the top cover. This article will help you fix your chainsaw by yourself that starts well but dies just after you push the throttle. Why does my Stihl chainsaw bog down when I give it gas? I doubt it has more than four or five hours on it. if (ry==0)
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Check, clean, and replace (if necessary) the air filter. Stihl ST251C Chainsaw Stalls when I depress the throttle. Unscrew the carburetor cover and expose the main jet. It may not display this or other websites correctly. 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. 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. When the saw bogs down during cutting, it's usually the high-speed screw you need to adjust. 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. 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. Still, if you feel that you can do so yourself, you can watch this YouTube tutorial here. The issue of chainsaw bog down can be very calamitous, and it oozes a great deal of frustration. I would suggest that in the first instance the carburetor settings are checked. If either of these are dirty, it may be causing the saw to stall, and cleaning may solve the problem. . Next, spray a carburetor cleaner into the throat of the carburetor on the side opposite the air filter and throttle linkage. Check the spark plug as well to examine the ignition system. Its starts fine, but if you give it gas it will shut off. Then there's the problem of wood binding. imagelinks[5]="https://woodmizer.com/Store/Shop/Sawmill-Options/CookieMizer-Clamping-Jig?utm_source=forestryforum.com&utm_medium=banner&utm_campaign=cookiemizer&utm_term=2021-03-09&utm_content=800x160"
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. If the fuel mix is old or has not been adjusted properly to the manufacturers specifications, refresh it or adjust it. Don't know how to post a pic of it on here. If your chain does not rotate, you can skip this step. Check cooling fins on the cylinder and clean if needed.
Take great care in removing the smaller parts and remove any debris or build up in the carburetor. Lastly, its time to play mixologist. Clean air intake slots on the housing of the starter and inspect your starter cord for any damage. The muffler looks easy enough to remove but I want to check out the carb. After reassembling the carburetor make sure the gaskets and seals are airtight. 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. A dirty or damaged spark plug can cause it to misfire causing the string trimmer to run rough. For a better experience, please enable JavaScript in your browser before proceeding. Thanks for the replies; I'll try out these suggestions. Your manual will provide detailed instructions on how to do this. After checking and cleaning the filters, see if the carburetor orientation is proper. A Stihl chainsaw can bog down for a variety of reasons. The main reason for an ECHO chainsaw to bog down is the dirty spark arrestor. You will need to use a file to sharpen your blades monthly or when the debris left from your saw cuts is more dust and fewer wood chips. For example, if the carburetor is clogged, not tuned correctly, or is contaminated, it may not be metering the right amount of fuel. If the plug checks out, try removing it and spraying it with aerosol-based cleaner. The engine should start by now. If the air filter is clean, then the spark plug should be cleaned and gap adjusted to the manufacturers specifications. */
If you observe any evidence of damage or wear on the air filter, I recommended to replace it. on Chainsaws, Started by H60 Hawk Pilot imagelinks2[2]="https://www.youtube.com/c/TheForestryForum?sub_confirmation=1"
Most manufacturers do not recommend adjusting the tuning of your chainsaws carburetor outside the hands of a trained professional. Where are these located and on what carbs? Then it loses power when cutting. Lastly, you should clean the air filter and replace it if necessary. 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. Next, youll need to gather the right supplies for the job at hand. All help is appreciated. This may be one of the least anticipated causes of the problem, but it occurs in several cases. If the gas is supplied to the chainsaw then the filters can clog easily. 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. myimages[5]="../../../images/top-banner/cookie-mizer.jpg"
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. The Low Speed is the setting I do 1st in or out a 1/4 turn to ensure no hesitation . There is no hiding from dirt. 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. 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. Cant get a good picture becouse of the glare of the piston. Dirty filters are the main problem. Top 11 Best Chainsaw Sharpener Tested for Sharpening 2023, How do Chainsaw Chaps Work? The chainsaw will bog down or stop running. This causes your engines RPMs to increase to a set limit before decreasing. var ry=Math.floor(Math.random()*myimages2.length)
Pull the starting chord to check resistance. We also recommend that if a unit will be left unused for more than 30 days that it be stored "dry". Use a 50:1 gas-to-oil mixture in your 2-cycle Stihl chainsaw. To identify air leakage, you will need to perform a pressure test on your chainsaw. Your chainsaw bogging down is a common issue that youll face when wielding one, and it can quite quickly throw a knot in your woodworking projects.
I have never worked on anything this saw. If the problem persists, inspect the fuel lines and ignition system. Additionally, if the air filter is dirty or blocked, that can also lead to a bogging issue. Just not sure what I am doing. I tried putting new gas in it and starting it up but it didn't make a difference. Additionally, it is a good idea to check the spark plug to make sure it is in good condition. If the spark arrestor is clogged, the chainsaw may run stall or run rough. How do you know what the best gas-to-oil mixture is the best for your chainsaw? If your chainsaws carburetor becomes clogged with dirt and debris, airflow is restricted and the chainsaws engine suffers. By: Author Olin Wade (Remodel or Move Stuff). Align the screws on the carburetor. You will need to position your file depth gauge so that the arrows are pointing toward the nose of the chainsaw bar. Your chainsaws fuel supply system comprises the gasoline tank, fuel filter, fuel lines, and carburetor. If your chainsaw is bogging down when you press the throttle, it can be a sure sign of an incorrect gas-to-oil ratio. To do this: Loosen each bolt about half way down using flathead screwdriver or small wrench (depending on size). First, be sure to read your chainsaws manual to determine whether you need specialized tools to disassemble the carburetor. Chris Deziel has a bachelor's degree in physics and a master's degree in humanities. Find the source of the issue and you can easily fix it. I doubt it has more than four or five hours on it. 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 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. my elevation is 640' above sea level. 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). Answer: Yes, a chainsaw can bog down if gas is supplied to it. And these issues can be solved if the problem is identified.
These deposits affect the engines operation and may cause your chainsaw not to start. if (ry==0)
Clean both of these components if they are dirty. The gasoline filter can be found at the bottom of your fuel tank. The first step is to make sure that your chainsaw has enough fuel. 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? Start by sharpening the cutting teeth of the blade first. The reason could be that you are using the Stihl saw at an altitude, or the carburetor adjustment might have slipped and required fixing. 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. Re: Stihl MS 180C running problems, bogging down, fuel starvation?? 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. It requires an 8mm or 5/16" nut driver or wrench. Proceed with adjusting the carburetor adjustment screws to fix a chainsaw that wont start. Chain-saw requires constant maintenance to be efficient. By, Read More Chainsaw Too Much Compression: Causes & SolutionContinue, Your email address will not be published. A couple of the small holes were plugged with what seemed like excessive oil, but once I blew on it it was clear.
In some circumstances, vapor locks created in the fuel tank due to insufficient venting cause engine issues. ry=1
Chainsaw Vapor Lock. So, lesser air is supplied to the carburetor and the saw bogs down. The removal of the carburetor fuel line is very sensitive.Make drawings drawing on the lines connections to allow easy re-assembly. As a result, the engine runs at too high or too low RPMs. The remedy is to close the screw, but closing it too far is dangerous for the engine. Jun 16, 2006. I didn't run straight gas through it and it isn't sized up so I am wanting to dig into the carb myself. Dont forget that a maintained chainsaw is a working chainsaw! I think I am having the same problem with mine. It may not display this or other websites correctly. //-->. When the saw bogs down during cutting, it's usually the high-speed screw you need to adjust . Oct 29, 2011. If your chainsaw doesnt start, adjust the carburetor screws till it doesnt bog down. #1. myimages2[1]="../../../images/top-banner/behindtheforum.jpg"
JavaScript is disabled. This jet is usually responsible for controlling the fuel/air mixture. 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. 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. A loose spark plug wire or incorrect gap can also be responsible for a poorly running string trimmer that bogs down. Random Image Link Script- By JavaScript Kit(http://www.javascriptkit.com)
I took it back to the dealer and he said he adjusted something and handed back saying it would work fine. I. We may earn a small commission from affiliate links and paid advertisements. 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. 4. For the spark plug, use a delicate brush, a wire, or a plug spray-on to clean off the thick carbon. Ok I think I can share the pics from this site. Adjust the main jet by twisting the needle in either direction. ), 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. The new fuel doesn't really clog the carbs. Next, you should check the air filter to make sure it is clean and not blocked by dirt or debris. The rakers are angled low to high with the high end in front of the cutter.