This is partly due to clogged filters resulting from long working hours and less air supply to the carburetor (which will be discussed later). Over 200+ free JavaScripts here! :bang: I guess that all depends on your oppinion of what "compressed air" is or isn't Internal check valves? Chain Saw: Engine Will Idle But Dies At Full Throttle You must log in or register to reply here. Richard lives out in the wild with his other half, Diana Richard. Take great care in removing the smaller parts and remove any debris or build up in the carburetor. 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. The engine should start by now. Disengage the chain brake and manually advance through the chain until you reach your starting point mark. Look over all cables, connections, nuts, and screws to ensure that they are not damaged and need replacement. Chain-saw requires constant maintenance to be efficient. Over time, the spark arrestor can become clogged with soot. 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. random_imglink2() random_imglink() Chainsaw Bogs When on its Side?!?!? - Hearth.com Forums Home Finally, if all previous procedures fail to provide results, the ignition may be at issue. On the first day the crew used it, it was bogging down. Lastly, its time to play mixologist. 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. 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. Get a carburetor repair kit before you begin clearing the blocked jets. Step Three. Prevent oil from accumulating in the engine. Thoroughly inspect your throttle trigger. Remove the air filter from its housing using a screwdriver. Even if you are a novice chainsaw operator, these spark plugsshould be updated at least once a year. Correcting stalling measures are generally referred to as tune-ups.These procedures help in improving your chainsaw performance. Adjust the screw using only turns before trying to start the trimmer again. No particular problem restarting. As a result, the fuel drawn by the carburetor reduces, causing the engine to stop running. You can have as many as you wish Its all clean just a blackish color. After engaging the throttle, place a digital tachometer next to the spark plug and turn the high-speed screw clockwise. Tighten the idle screw with a screwdriver to fix this and see whether the engine RPMs rise. Stihl chainsaw engine ( motor ) bogging down things to check first. Clean air intake slots on the housing of the starter and inspect your starter cord for any damage. Now take and post a picture so we can see the exhaust side of the piston. If t present cleaning your tank isnt an option. Tips from a Professional, Chainsaw Starts but Wont Idle. This may be one of the least anticipated causes of the problem, but it occurs in several cases. (Why You Might Not Want to), Why Wont My Chainsaw Cut? Stihl chainsaw engine ( motor ) bogging down things to check first. #7. Also cleaned muffler and replaced spark arrestting screen.All with no luck. Check, clean, and replace (if necessary) the air filter. 30:1 is recommended mostly for older models. First, disconnect the spark plug wire and turn the engine off. The above answer may be brief, but I will explain it in more detail, including how to fix a chainsaw that wont start. It can turn a typical day at work or an enjoyable project into a hassle for its user. I have a MS250 that's only two years old and has barely been used. Next, you should check the air filter to make sure it is clean and not blocked by dirt or debris. 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. 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. 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. You may have to look beneath the air filter or in the Users Manual for your saws model number. Something may be amiss in the low or high speed circuit of the carb. Guess its time to pull the carby down and check the diaphragm and mesh. keep cutting with precision and efficiency. We pulled out the carb and opened it up, and the check valve looked perfect and everything was as clean and shiny as you'd expect a basically brand new saw to look. The ignition system includes the spark plugs, ignition coil, and exhaust muffler. Login with username, password and session length, Model 6020-20hp Manual Thomas bandsaw,TC40A 4wd 40 hp New Holland tractor, 450 Norse Winch, Heatmor 400 OWB,YCC 1978-79. If the spark plug is cracked or damaged, you will need to replace it. This will keep your chain in place for the next steps. var ry=Math.floor(Math.random()*myimages.length) if (ry==0) This can also be caused by bad fuel. Location. (Read 66824 times) (Read 66824 times) 0 Members and 2 Guests are viewing this topic. Firstly, what instigates the chainsaw Bog down? Tips from a Professional. This feature is commonly found on modern chainsaws, and is designed to make adjusting the chain tension quick and easy. Check the edges of the bar for burs and file off if needed. Clogging usually occurs due to long working hours. Besides the screw setting, check and ensure that the spark plug is in working condition and that the carburetor and fuel jets are properly serviced. A carburetor is a part of a combustion motor that mixes air and fuel in a specific ratio for combustion. Loosening the screw, on the other hand, enriches the mixture with gasoline and lowers the RPMs to a set limit. To ensure any residue is removed, spray the inside of the carburetor with carburetor cleaner and scrub with a stiff brush. Re: Chainsaw bogs on full throttle . var myimages2=new Array() Suppose that your chainsaws fuel mixture is correct, and youre still experiencing a lag in performance. Because of continuous firing, the spark plugs electrodes become damaged or acquire carbon deposits, reducing spark quality. The reason could be that you are using the Stihl saw at an altitude, or the carburetor adjustment might have slipped and required fixing. If the spark arrestor is clogged, the chainsaw may run stall or run rough. Make sure that its leveled and does not tilt. Since the engine turns off shortly after starting your weed eater, the idle speed may just be too slow. When the saw bogs down during cutting, it's usually the high-speed screw you need to adjust. skytower, Oct 3, 2010. before starting the process. 5. Most manufacturers do not recommend adjusting the tuning of your chainsaws carburetor outside the hands of a trained professional. The inability to reach full power during a full-throttle trigger is also a sign of bogging down. myimages2[1]="../../../images/top-banner/behindtheforum.jpg" Just not sure what I am doing. 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. The location of the fuel filter on a Poulan chainsaw varies depending on the model. Now, remove the filter and clean the dust buildup using a brush. This is usually behind the air filter, but if you have trouble locating it, consult your user manual. Make sure to take out the spark plug before removing the filter. If there is none, then take off the cover and locate the carburetor. Once youve made the adjustments, make sure to monitor the performance of your saw over the next few days and readjust if necessary. 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. It would do the same thing, die when you give it fuel, It would also idle way down when I was adjusting the carb, not from turning the screws all you had to do was just push on it a little and it would almost die. myimages2[2]="../../../images/top-banner/behindtheforum.jpg" If your Stihl saw keeps stopping, there could be several potential causes. Technician. Anyone have any suggestions? On most models it is either just below or just above the carburetor and secured with a metal clip. Remove the filter from the tanks bottom and clean the stale gasoline deposits from the filters jets with a metal wire. Required fields are marked *. myimages[4]="../../../images/top-banner/ez50-banner.jpg" Jun 16, 2006. Rotate the fuel supply lever and keep it in the on position while you spray the carburetor cleaner. ), 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 fuel lines or ignition system may have beenaffected if the problems continue despite adjustment. If you don't know about the perfect amount . A dirty arrestor, on the other hand, is the cause of overheating your experience in a bog down. The idling (I) screw regulates the mass flow rate of the air-fuel combination entering the engine at idle. For instance: It is impossible not to lose power when the firewood chainsaw is being used constantly. I do sharpen the chains myself using an Oregon 511A. The H side means the high side and its adjustment.It is used to regulate the quantity of fuel that flows through the carburetor during fast paced RPMS.The L side of the chainsaw means the low side and it is used in adjusting the flow of fuel in the carburetor when there is a low RPM. 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. 1. I will try to figure out how to get the carb off tomorrow morning. Or maybe gas varnish in the screen filter at the base of the metering needle. (3 Common Causes). Let the chainsaw cool down if there's excessive smoke release or the chainsaw got heated up. Any factor that might affect supply can cause the chainsaw to bog down. A daily, weekly, and monthly check-up and cleaning must be performed for optimal performance. Re: Stihl MS 180C running problems, bogging down, fuel starvation?? Other indicators that your chainsaw may be suffering from carburetor troubles are overheating or excessively smoky exhaust. Carburetors alone can be both the cause and the solution to a chainsaw bog down. If the idle screw is too loose, the mixture will be too rich, and the chainsaw will not run at all, even at idling. To remove it you need to depress a small tab and slide the fuel line off. 01 - Stihl Chainsaw Spark Arrestor. Rotate the saw and file the remaining teeth using the same angle and motions as before. If your chainsaw starts but does not stay running, the low-speed (L) and idle screw (I) may not be properly set.