Tighten the idle screw with a screwdriver to fix this and see whether the engine RPMs rise. Do not store a dirty chainsaw. By a silver star and you can post unlimited pictures. (3 Common Causes). It will start up with some work, but it idles for a couple seconds then dies most of the time, and when it doesn't die on its own, it dies when I try to give it any gas. The effect of air leakage is that it upsets the composition of the air-fuel mixture. Chainsaw Bogs When on its Side?!?!? - Hearth.com Forums Home A dirty carburetor is likely to cause Chainsaw Bog.In this case, the speed of the chainsaw will dwindle a great deal.Dirt in the spark arrestor or air filter can also cause the chainsaw to bog. I'm having trouble with my Stihl MS180 C-BE chainsaw. A carb cleaner spray is an excellent tool for eliminating sticky deposits from your jets and reviving your carburetor. Additionally, inspect the air vents on the engine to make sure they are not blocked by leaves or debris.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'remodelormove_com-banner-1','ezslot_4',157,'0','0'])};__ez_fad_position('div-gpt-ad-remodelormove_com-banner-1-0');if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'remodelormove_com-banner-1','ezslot_5',157,'0','1'])};__ez_fad_position('div-gpt-ad-remodelormove_com-banner-1-0_1');.banner-1-multi-157{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}. Check inside the fuel tank for dirt and debris. 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. If you observe any evidence of damage or wear on the air filter, I recommended to replace it. Over time, the spark arrestor can become clogged with soot. To remove it you need to depress a small tab and slide the fuel line off. Clogging usually occurs due to long working hours. The air filter in your chainsaw protects your chainsaw from dirt and debris by filtering it out before it can reach the engine. var myimages2=new Array() The L screw controls how much fuel enters the carburetor at low speed, whereas the H screw controls how much gasoline flows into the carb at high speed. Cleaning a carburetor on a chainsaw without removing it can be done with a few simple steps. Save my name, email, and website in this browser for the next time I comment. Following the L modification, the mixture composition should be adequate to keep your engine running. Los Angeles, CA 90013 In case it is not the fuel ratio, it might be dirty or clogged air filters. Stihl Chainsaw - Chainsaw Starts Then Stalls - Repair Clinic Additionally, it is a good idea to check the spark plug to make sure it is in good condition. +1-213-221-0119, By using this website I agree with the Disclaimer. Anyone have any suggestions? First, disconnect the spark plug wire and turn the engine off. The reason for. 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. We also recommend that if a unit will be left unused for more than 30 days that it be stored "dry". The solution is easy and you can do it within a few minutes. Still, if you feel that you can do so yourself, you can watch this YouTube tutorial here. If the spark arrestor is clogged, the chainsaw may run stall or run rough. Why Does My Chainsaw Bog Down When I give it Gas? 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. In both cases, your chainsaw will be affected as it can damage the engine and your chainsaw might die off when you give it gas. Curtis B. After checking and cleaning the filters, see if the carburetor orientation is proper. keep cutting with precision and efficiency. My Chainsaw Bogs Down When I Give It Gas; Causes and Solutions [2023]. This is done by turning the air screw in either direction, depending on the engines response. 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. While you are in there, check the spark arrestor screen to make sure it is clear and that there is not any debris clogging it. Stihl chainsaw engine ( motor ) bogging down things to check first. If your chainsaw starts but does not stay running, the low-speed (L) and idle screw (I) may not be properly set. It should be the first thing to check and clean. Read more about this in, "This is the Type of Gas to Use in a String Trimmer". 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" Drain the fuel tank and store the gasoline in an appropriate container before bringing it out. I think I am having the same problem with mine. Find the screw to adjust the idle speed. 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. 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. Unscrew the carburetor cover and expose the main jet. Locate all the screws on the carburetor and check if they are all aligned. Please Help! Chainsaw bogs and dies when revs | Tacoma World By properly troubleshooting and addressing any potential causes, you can prevent stalling or restarting problems with your Stihl saw. Turning the knob will either tighten or loosen the chain, depending on the direction the user turns the knob. The Low Speed is the setting I do 1st in or out a 1/4 turn to ensure no hesitation . You must log in or register to reply here. If it still doesnt look clean, it might be time to replace it. ( 2 cents) the new gas seems to clog small motors Mike. 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. Chainsaw bogs down in cut in Chainsaws - forestryforum.com Tips from a Professional. Be sure that your oiler is adequately lubricating your bar and chain. Start by sharpening the cutting teeth of the blade first. This may be one of the least anticipated causes of the problem, but it occurs in several cases. I do sharpen the chains myself using an Oregon 511A. In most models, it can easily be located by taking off the top cover. If the chainsaw continues to stall, the issue could be with the low-speed and idle screws, which should be adjusted. 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. Getting frustrated. Kilikoba Nashoba 858 subscribers 46K views 7 years ago This video is about likely causes of a Stihl chainsaw engine. The reason could be that you are using the Stihl saw at an altitude, or the carburetor adjustment might have slipped and required fixing. Any factor that might affect supply can cause the chainsaw to bog down. Then, remove the air filter and fuel filter. More so, the chainsaw might bog and refuse to run when you give it gas. Check that the anti-vibration elements are not damaged, torn, or soft. When the saw bogs down during cutting, it's usually the high-speed screw you need to adjust. Stihl ST251C Chainsaw Stalls when I depress the throttle. The inability to reach full power during a full-throttle trigger is also a sign of bogging down. no never loaned it out. Quick Answer: Why Does My Chainsaw Cut To The Right Allow the cleaner to sit for five to 10 minutes and then wipe away with a cloth. Once youve made the adjustments, make sure to monitor the performance of your saw over the next few days and readjust if necessary. Dirty filters are the main problem. How did you get the carb off? How to Prevent Your Chainsaw from Bogging Down Check, clean, and replace (if necessary) the air filter. 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. ), Woodmizer LT-40-HD http://www.welshtreeservice.com. Trying that is by using Stihl Ultra bottles and pouring a little less but I always have some left over gas in the can. 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. removed it and saw functions perfectly. If the spark arrestor is clogged, the chainsaw may run stall or run rough. In case you have filled it wrong, drain it out and replace it with the correct mix. Chainsaw Keeps Bogging Down? Here's What to Do - Crankfix.com To view the purposes they believe they have legitimate interest for, or to object to this data processing use the vendor list link below. Clean your spark plug and measure the gap. We may earn a small commission from affiliate links and paid advertisements. 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. On most models it is either just below or just above the carburetor and secured with a metal clip. It should measure at 0.5 mm (0.20 in). At this point, the battery will reset,, Read More How To Reset Echo 58-Volt Battery ChargerContinue, Clogging of the air filter/fuel line, untidy carburetor and damaged spark plug, etc.