Older saws have degraded lines which need replacement. The engine and its associated delivery system need to be airtight to maintain adequate temperature and pressure. Then, remove the air filter and fuel filter. Bog down is straight-up the most infuriating issue when using a chainsaw. Imagine you are about to cut down or in the middle of cutting down a tree or wood, and your 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. Adjust the screw using only turns before trying to start the trimmer again. Over time, the spark arrestor can become clogged with soot. New Husqvarna 550XP had to be reprogrammed. The Job of the Carburetor One controls the fuel mixture when the engine is idling, one controls it when the engine is operating at low speed and one is for high-speed fuel control. Being in the cutting services for more than 10 years, I know a thing or two about chainsaw. Disengage the chain brake and manually advance through the chain until you reach your starting point mark. imagelinks2[2]="https://www.youtube.com/c/TheForestryForum?sub_confirmation=1" If this is the case, the only alternative is to replace the spark plug. */ This helps identify the compression. There are a number of carburetor-related problems. You should attend to all of those anyway, before you give it a clean bill of health. Start the chainsaw for a few seconds to make sure the carburetor is functioning correctly.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[320,50],'remodelormove_com-large-leaderboard-2','ezslot_10',158,'0','0'])};__ez_fad_position('div-gpt-ad-remodelormove_com-large-leaderboard-2-0'); To unclog a chainsaw carburetor, youll need to thoroughly clean the carburetor and replace the air filter. If the problems remain, examine the fuel lines and carburetor. Take great care in removing the smaller parts and remove any debris or build up in the carburetor. Getting frustrated. Ben has a bachelors degree in construction engineering. Drain the fuel tank and store the gasoline in an appropriate container before bringing it out. The Forestry Forum is sponsored in part by: Location. To adjust the tension on the chain, the user simply turns a knob located near the drive sprocket. If any part of that ratio is off (as previously mentioned), your chainsaw will experience a lag in performance. Secondly, its about time we take a look at why your chainsaw suddenly stops working.The carburetor is like the vein in engines.Once it is clogged, the free flow of air and fuel will be blocked and the engine will be starved of fuel.To quell this issue, wash away the diets using the carburetor cleaner.In some scenarios, washing away or cleaning the carburetor may not be effective, hence, you should consider buying a new carburetor or repairing it.A clogged fuel tank can also cause the chainsaw to stop working.In such cases, endeavor to drain the old file from the chainsaw SNF ensure that the fuel tank is devoid of fuel. Associate Degree. If you experience this scenario, the orientation of your carburetor has likely changed. It should be the first thing to check and clean. How Do You Repair a Chainsaw That Wont Start? When the L or idle screws are not properly set, the idle RPMs fall too low, causing the engine to stalland eventually stop. You may have to contend with disassembling your carburetor to correct the mechanical issues bringing about the stalling.Before you to this drastic step first exhaust all possible causes of the problem. Run a check on your chainsaws cooling system. It is possible that your Stihl chainsaw is dying when you give it gas if the carburetor, spark plug, chain, or air filter is malfunctioning. var ry=Math.floor(Math.random()*myimages2.length) No matter how tight the seal on the tank is, replace the gas every three months and use stabilizer. The ignition system is essentially a spark plug. For example, if the carburetor is clogged, not tuned correctly, or is contaminated, it may not be metering the right amount of fuel. 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 thick fuel mixture can cause excessive carbon around the spark plug, which can even kill a chainsaw. I have a MS250 that's only two years old and has barely been used. I took it back to the dealer and he said he adjusted something and handed back saying it would work fine. The first step is to make sure that your chainsaw has enough fuel. Over 200+ free JavaScripts here! 0 Members and 1 Guest are viewing this topic. I'm having trouble with my Stihl MS180 C-BE chainsaw. 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? Another possible cause of a Stihl chainsaw bogging down is a broken or worn chain. Mix in a premium 2-cycle oil that is ISO-L-EGD and JASO M345 FD certified. Heres a quick rundown of daily, weekly, and monthly maintenance tips: Chains will loosen over time and use. It's a small screen you can simply pull out after removing the muffler cover. 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. myimages[6]="../../../images/top-banner/EZ-junior.jpg" He tests chainsaws based on 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. Also, use a clean cloth and some carburetor cleaner to wipe down the inside of the carburetor. The chainsaw bogs down will occur when your engine is starved of enough fuel or when there is termination in the connection between the carburetor and the engine. Other indicators that your chainsaw may be suffering from carburetor troubles are overheating or excessively smoky exhaust. If your chainsaw is bogging down, one of these critical components isnt in its correct balance. 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. A couple of the small holes were plugged with what seemed like excessive oil, but once I blew on it it was clear. If there is none, then take off the cover and locate the carburetor. How do you know what the best gas-to-oil mixture is the best for your chainsaw? Solution: Use the user manual to locate the air filter. After checking and cleaning the filters, see if the carburetor orientation is proper. 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. 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. After I got home I remover the spark plug and looked in there and everything looks good. This dirt and debris can build up and create a clog. A Stihl chainsaw can bog down for a variety of reasons. If the compression is low, you should clean and check for any damage or wear. No particular problem restarting. Still, if you feel that you can do so yourself, you can watch this YouTube tutorial here. Because of continuous firing, the spark plugs electrodes become damaged or acquire carbon deposits, reducing spark quality. Tighten the idle screw with a screwdriver to fix this and see whether the engine RPMs rise. What causes a chainsaw to bog down when accelerating? 6. Working outdoors can be such a cathartic experience. I doubt it has more than four or five hours on it. Your email address will not be published. I take off everything can come off. Make sure that its leveled and does not tilt. I think the problem is ethanol in gas, espesially gas . It is experienced during welding, idling, or full throttle. Chain filing isnt a difficult task and is crucial in maintaining your chainsaw. They wrote it up as I ran straight gas through it and seized it. Next, you should check the air filter to make sure it is clean and not blocked by dirt or debris. You must log in or register to reply here. You can have as many as you wish The removal of the carburetor fuel line is very sensitive.Make drawings drawing on the lines connections to allow easy re-assembly. Before tossing your chainsaw in the shed, there are a few simple things you should do to ensure the longevity and productivity of your tool. They all come with their fair share of technical issues. Guess its time to pull the carby down and check the diaphragm and mesh. Cleaning it by immersing it in a soap water solution is preferable. Found the problem. 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. Manage Settings It bogs down it seems and stalls out when I open the throttle. Generally, you will find the fuel filter on the fuel line, usually near the carburetor. The muffler looks easy enough to remove but I want to check out the carb. You are using an out of date browser. Page created in 1.341 seconds with 39 queries. The engine boggs down under a load and when just reving the saw. if (ry==0) myimages2[2]="../../../images/top-banner/behindtheforum.jpg" If the spark plug is physically damaged, replace it. Even with the tiniest passage, it can make its way towards anything, including a spark arrestor and spark plug. Sometimes the L adjustment is insufficient, and you must tweak your fuel delivery components, specifically the carburetor and filters. I have never worked on anything this small. 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. myimages[4]="../../../images/top-banner/ez50-banner.jpg" 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. Additionally, it is a good idea to check the spark plug to make sure it is in good condition. Carb. 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