Proceed with adjusting the carburetor adjustment screws to fix a chainsaw that wont start. Oct 29, 2011. 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" The effect of air leakage is that it upsets the composition of the air-fuel mixture. Remedy this by adjusting the high-speed screw. Apr 16, 2009. What Would Cause a STIHL Trimmer to Not Start? Clean and check the function of your chain brake. Most engine problems can be solved with the previously mentioned adjusting procedure. Question: What's the reason for the chainsaw to die under heavy load? Clogging slows down the engine from in-taking fuel and air, which results in a bog down at full throttle. Clogging usually occurs due to long working hours. Don't know how to post a pic of it on here. When you depress the trigger, a vent on the carburetor opens, allowing more gas to reach the mixing chamber. Imagine you are about to cut down or in the middle of cutting down a tree or wood, and your chainsaw bog down. The first problem is that when the saw is tilted forwards or the chain brake is disengaged it stalls. I doubt it has more than four or five hours on it. Its all clean just a blackish color. Clean both of these components if they are dirty. Finally, check the choke. Chain filing isnt a difficult task and is crucial in maintaining your chainsaw. Just not sure what I am doing. When a clog occurs, your engine will not get enough air to operate effectively. How do you know what the best gas-to-oil mixture is the best for your chainsaw? If any part of that ratio is off (as previously mentioned), your chainsaw will experience a lag in performance. Clean your chainsaw. The engine boggs down under a load and when just reving the saw. Conclusion: Why Does My Chainsaw Bogs Down When I Give it Gas in 2023? The new fuel doesn't really clog the carbs. I have ran many 2 stroke motor cycles and atv's and feel as though its a carb problem. Make sure to properly lubricate your chain with chain oil and check the compression in the cylinder. Bog down is straight-up the most infuriating issue when using a chainsaw. 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. As previously stated, the carburetor comprises three screws (L, H, and I) for managing the engine RPMs at low, high, and idle speeds. On most models it is either just below or just above the carburetor and secured with a metal clip. If the gas is supplied to the chainsaw then the filters can clog easily. Next, youll need to gather the right supplies for the job at hand. Any factor that might affect supply can cause the chainsaw to bog down. Its all about adjusting the carburetor, and a slight change in the orientation can lead to Chainsaws Bog. This will keep your chain in place for the next steps. For instance: It is impossible not to lose power when the firewood chainsaw is being used constantly. My name is Chris Ross. The main reason for an ECHO chainsaw to bog down is the dirty spark arrestor. In case you have filled it wrong, drain it out and replace it with the correct mix. Thanks for the replies; I'll try out these suggestions. A clean and fixed carburetor is key to achieving full throttle performance. The answer is simple; you check your chainsaws owners manual. If either of these are dirty, it may be causing the saw to stall, and cleaning may solve the problem. 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. How to Hang a Chainsaw to keep it Safe and Protected in 2023? This is usually behind the air filter, but if you have trouble locating it, consult your user manual. Obviously pull the carb and exhaust when you do this. It should measure at 0.5 mm (0.20 in). If the problem persists, inspect the fuel lines and ignition system. To unclog the spark arrestor, remove it and clean it with a wire brush. Wash it in soapy water with a soft-bristle brush. Follow these simple steps to become a master fuel mixologist: You can now correctly mix the gasoline and oil needed for your chainsaw, so lets move on to other issues that can arise and cause a bogged-down chainsaw. The new fuel cleans everything really good and what the fuel cleans ends up in the fuel filter or the carburetor screen. They wrote it up as I ran straight gas through it and seized it. If these steps do not solve the problem, you should take the chainsaw to a professional for servicing or further diagnosis. Prevent oil from accumulating in the engine. I didn't run straight gas through it and it isn't sized up so I am wanting to dig into the carb myself. Required fields are marked *. . Continue with Recommended Cookies. Hence, many people complain- chainsaw bogs down when I give it gas . 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" no never loaned it out. By a silver star and you can post unlimited pictures. Over 200+ free JavaScripts here! Random Image Link Script- By JavaScript Kit(http://www.javascriptkit.com) Once the faulty seal or gasket is identified, it needs to be replaced, and the engine should be up and running. It may not display this or other websites correctly. Then it loses power when cutting. As a preventative measure, always keep your tank vents clean. 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. If your chainsaw cannot get enough of either one of those critical components, it will cause the motor to stall. Remove the air filter from its housing using a screwdriver. 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. Use low pressure compressed air, and a stiff paint brush bristle to check them all. If the spark plug is physically damaged, replace it. It is difficult to get the proper high-speed adjustment by ear -- most pros use a tachometer. 453 S Spring St Ste 400 Fix your Lawnmower with our Lawnmower Troubleshooting tool. If the fuel you are using is too old or is diluted, your chainsaw will not work correctly. You must locate the perfect setting at which the engine won't stop once the throttle is applied. Ok I think I can share the pics from this site. There is no hiding from dirt. 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) . Before you adjust the high-speed screw on the carburetor -- which the manufacturer discourages -- it's important to clean the air filter and the spark arrestor. All help is appreciated. It could even bog down when given gas. 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. 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. The spark arrestor is a small screen that prevents the engine from emitting sparks. Please loginor register. Unless you are running an electric chainsaw (which is a totally different beast), your chainsaws motor is a combustion system that relies on a proper ratio of gas, oil, and air. Dirty filters are the main problem. We like to help other people maintaining their garden and find cool products to write about. #1. Always clean the outside of your chainsaw after using it to remove any dust or debris that may be present. Additionally, the choke might be stuck in either the open or closed position and preventing the engine from running properly. Confirm for water and debris in your fuel tank. Heres a quick rundown of daily, weekly, and monthly maintenance tips: Chains will loosen over time and use. I have a MS250 that's only two years old and has barely been used. 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. The last thing anyone wants is a saw that purrs when idling and bogs down when applying gas. Replacement of carburetor is the best option if you have an old chainsaw.This is because the diaphragm gets hard making it hard to crank. These deposits often accumulate at the fuel filter or carburetor jets, eventually blocking them and impeding fuel flow. The proper fuel mixture is essential for effective, trouble-free operation. Save my name, email, and website in this browser for the next time I comment. Fill the tank with the prescribed gas-to-oil ratio. Vapor lock occurs when the fuel vapor pressure builds up considerably in the fuel tank and isnt allowed to escape from the tank vents. Location. Ok I got it posted. 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. Why Is My Chainsaw Bogging Down? After I got home I remover the spark plug and looked in there and everything looks good. Check inside the fuel tank for dirt and debris. 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. skytower, Oct 3, 2010. 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. This means emptying the fuel tank and then restarting and letting the unit run until all the fuel is consumed and the engine stops. Next, spray a carburetor cleaner into the throat of the carburetor on the side opposite the air filter and throttle linkage. Get a carburetor repair kit before you begin clearing the blocked jets. All internal or external factors that reduce the supply of combustible air causes bogging down. Chain-saw requires constant maintenance to be efficient. Some issues can be solved at home with the right tools, and some need professional help. A loose spark plug wire or incorrect gap can also be responsible for a poorly running string trimmer that bogs down. 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. Register today and take advantage of membership benefits. Richard lives out in the wild with his other half, Diana Richard. If your chainsaw bogs down at full throttle, the air filter and . 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. Cleaning the air filter and spark arrestor with, Read More Chainsaw Bogs Down When CuttingContinue, Did you buy a new Stihl chainsaw, remember you cannot go and start using it like any old chainsaw. ), Woodmizer LT-40-HD http://www.welshtreeservice.com. I'm an arborist by profession & a blogger by passion. 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. 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. 3. Make sure that its leveled and does not tilt. 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. The first step is to make sure that your chainsaw has enough fuel. //-->,
