If your chainsaw starts but does not stay running, the low-speed (L) and idle screw (I) may not be properly set. To remove it you need to depress a small tab and slide the fuel line off. If the idle screw is too loose, the mixture will be too rich, and the chainsaw will not run at all, even at idling. It is responsible for mixing fuel and supplying it to the engine. The issue of chainsaw bog down can be very calamitous, and it oozes a great deal of frustration. myimages2[3]="../../../images/top-banner/behindtheforum.jpg" Additionally, if the air filter is dirty or blocked, that can also lead to a bogging issue. Please Help! Chainsaw bogs and dies when revs | Tacoma World These screws are in charge of regulating the fuel flow to the carburetor under varied load circumstances. Allow the cleaner to sit for five to 10 minutes and then wipe away with a cloth. Its starts fine, but if you give it gas it will shut off. If the air filter is clean, then the spark plug should be cleaned and gap adjusted to the manufacturers specifications. When the L or idle screws are not properly set, the idle RPMs fall too low, causing the engine to stalland eventually stop. By: Author Olin Wade (Remodel or Move Stuff). Turning it clockwise will increase fuel flow, and turning it counterclockwise will reduce fuel flow. If the carburetor is clogged or not adjusted properly, it can cause the saw to run out of fuel. This jet is usually responsible for controlling the fuel/air mixture. Random Image Link Script- By JavaScript Kit(http://www.javascriptkit.com) The use of stale ethanol-blended fuel, which creates sticky white deposits over time, is the most typical source of such clogs. Page created in 1.341 seconds with 39 queries. Cleaning Tips The goal when diagnosing issues with bogging down is to implement a quick fix and avoid any disassembly (like the carburetor). Home Why Is My Chainsaw Bogging Down? 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. on Chainsaws, Started by H60 Hawk Pilot Fill the tank with the prescribed gas-to-oil ratio. 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. Adjusting the H screw will help achieve optimal performance. Tips from a Professional. Dealing with a carburetor requires strict guidelines to be followed. 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. 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. There are a number of issues to check in a sequence as why a mini chainsaw would bog at full throttle. The first step is to make sure that your chainsaw has enough fuel. 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 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. In some circumstances, vapor locks created in the fuel tank due to insufficient venting cause engine issues. Some of our partners may process your data as a part of their legitimate business interest without asking for consent. It is experienced during welding, idling, or full throttle. 0 Members and 1 Guest are viewing this topic. STIHL Chainsaws FAQs | STIHL Product FAQs - STIHL - The Number One To view the purposes they believe they have legitimate interest for, or to object to this data processing use the vendor list link below. I love to write about chainsaw for homeowners and professionals. Move the piston up in bore a bit more so we can see the piston below the ring and turn your flash off. */ I told them that I ran Polaris gold synthetic in it, which I used to use in my drag bike years ago, service manager says stihl says that that is an unacceptable oil. It has the exact ratio requirement of gas and oil for your specific model. Over time, the spark arrestor can become clogged with soot. 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. Although Richard does focus on other home improvement tools, his focus remains on cutting fallen trees or maintaining his backyard via chainsaw tools. Its an essential step in properly maintaining your chainsaw to check and adjust the chain tension. There are many factors that cause a bog down, but mostly it is the carburetor orientation or blockage. 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. 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. If there is none, then take off the cover and locate the carburetor. JavaScript is disabled. It's a small screen you can simply pull out after removing the muffler cover. How do you know what the best gas-to-oil mixture is the best for your chainsaw? 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. The first step is to make sure that your chainsaw has enough fuel. When I remove the cover (13), I find the upper surface of the filter (2) heavily contaminated (this is an aftermarket eBay filter, perhaps it is not sealing properly? (3 Common Causes). Anobstruction in any of these components may disrupt the fuel flow to the engine, leading to the engine bogging down while idling. I'm having trouble with my Stihl MS180 C-BE chainsaw. } 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. The above answer may be brief, but I will explain it in more detail, including how to fix a chainsaw that wont start. Los Angeles, CA 90013 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. myimages2[1]="../../../images/top-banner/behindtheforum.jpg" You are using an out of date browser. Make sure to take out the spark plug before removing the filter. Being in the cutting services for more than 10 years, I know a thing or two about chainsaw. 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. Technician. And these issues can be solved if the problem is identified. 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. Read more about this in, "This is the Type of Gas to Use in a String Trimmer". There are several factors may make your saw not work properly. Also, use a clean cloth and some carburetor cleaner to wipe down the inside of the carburetor. It should be the first thing to check and clean. A carburetor is a part of a combustion motor that mixes air and fuel in a specific ratio for combustion. Now take and post a picture so we can see the exhaust side of the piston. Remove the filter from the tanks bottom and clean the stale gasoline deposits from the filters jets with a metal wire. Stihl Chainsaw Bogs Down When I Give It Gas - WHYIENJOY Knowing how to mix fuel properly is the first step to ensuring that your chainsaw will stay up and running for years to come. Check the fuel tank for the correct fuel and oil mixture, filling it up if necessary. 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. STIHL Chainsaw Bogged Down at Full Throttle STIHL 026 Bogging Down | Homesteading Forum Additionally, it is a good idea to check the spark plug to make sure it is in good condition. After checking and cleaning the filters, see if the carburetor orientation is proper. Why Is My Chainsaw Bogging Down? If your chainsaw is bogging down when you press the throttle, it can be a sure sign of an incorrect gas-to-oil ratio. Clear all dirt and debris from the saw body, chain, and bar. This handy guide will cover the common problems that cause bog down and how you can keep it from happening in the future. Make sure to take out the spark plug before removing the filter. //-->,