Clean it with a wire brush. 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. keep cutting with precision and efficiency. ), Woodmizer LT-40-HD http://www.welshtreeservice.com. myimages[6]="../../../images/top-banner/EZ-junior.jpg" I take off everything can come off. If your chain starts to spin, loosen the idler screw until it stops. Then there's the problem of wood binding. These screws are in charge of regulating the fuel flow to the carburetor under varied load circumstances. 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. First, remove the old fuel line from the fuel tank. We like to help other people maintaining their garden and find cool products to write about. on Chainsaws, Started by bkkraft Cleaning it by immersing it in a soap water solution is preferable. Top 11 Best Chainsaw Sharpener Tested for Sharpening 2023, How do Chainsaw Chaps Work? Kilikoba Nashoba 858 subscribers 46K views 7 years ago This video is about likely causes of a Stihl chainsaw engine. Richard lives out in the wild with his other half, Diana Richard. Unscrew the carburetor cover and expose the main jet. A Detailed Guide, What Size Chainsaw Do I Need in 2023? Started by ellinghamso The fuel lines or ignition system may have beenaffected if the problems continue despite adjustment. Ben has a bachelors degree in construction engineering. He pledges to come up with new knowledge about chainsaws every once in a while. 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? If the fuel mix is old or has not been adjusted properly to the manufacturers specifications, refresh it or adjust it. Apr 16, 2009. Location. In case you have lost it, the majority of chainsaws follow the following gas: oil ratio. if (ry==0) Detailed Answer. 20,427 satisfied customers. Tighten the idle screw with a screwdriver to fix this and see whether the engine RPMs rise. The reason for that may be you're using the saw at altitude or the carburetor adjustment has simply slipped. You cannot mix oil and gas directly in your chainsaws fuel tank and will need an empty, leak-proof fuel container that is just slightly larger than the volume of oil and gas being mixed. If your Stihl saw keeps stopping, there could be several potential causes. 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. To rule out any of these as a potential cause, its important to first check the air filter. After cleaning, attachit backto the gasoline tank. Take the appropriate screwdriver and align them. Clogging slows down the engine from in-taking fuel and air, which results in a bog down at full throttle. 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. On most models it is either just below or just above the carburetor and secured with a metal clip. We and our partners use cookies to Store and/or access information on a device. The spark arrestor is a small screen that prevents the engine from emitting sparks. This handy guide will cover the common problems that cause bog down and how you can keep it from happening in the future. I hope my epic guides will help you to choose,buy and maintain 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. As a result, the chainsaw will bog down at full throttle. Affiliate. If the spark plug is cracked or damaged, you will need to replace it. All fuel supply components must be independently examined to address these difficulties, as discussed in the following sections. 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. What causes a chainsaw to bog down when accelerating? JavaScript is disabled. I'm having trouble with my Stihl MS180 C-BE chainsaw. I ask if they checked the carb and they said no. 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. Lastly, its time to play mixologist. #7. With the carb apart, make sure all the passages are clear. If you would like to change your settings or withdraw consent at any time, the link to do so is in our privacy policy accessible from our home page.. Begin by draining the fuel tank and draining the existing fuel from the carburetor. Align the screws on the carburetor. Proceed with adjusting the carburetor adjustment screws to fix a chainsaw that wont start. This can be done with a vise, clamps, or any type of fastener that will stabilize your chainsaw. First and foremost, you should check that you are using the correct fuel and oil mixture for your chainsaw. Clean and check the function of your chain brake. 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 either of these are dirty, it may be causing the saw to stall, and cleaning may solve the problem. 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. Over 200+ free JavaScripts here! I guage the rakers and grind them when necessary. Add your pre-measured oil to the container, Add your pre-measured gasoline AFTER (not before) your oil, Seal your fuel container and swirl, not shake, to thoroughly combine the oil and gasoline, Once properly mixed, your gas and oil mixture will be evenly colored with no variegated streaks, Check your owners manual to locate your chainsaws air filter, Your chainsaws air filter should be visible at this point and can be easily removed from its housing with a screwdriver, After removing the air filter, wash it in soapy water and scrub with a soft-bristle brush until clean, Allow your air filter to dry thoroughly before replacing it in your chainsaw, Make sure that your chainsaw is off and cool (Heat isnt your friend here! If the spark plug is fouled, it means that it is unable to ignite the fuel being provided to the cylinder. Chainsaw bogs on full throttle #63708 18/04/15 11:39 PM. How do you know what the best gas-to-oil mixture is the best for your chainsaw? 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. When the mixture in the carburetor is too lean, the engine races and overheats and the piston can seize. You will need to position your file depth gauge so that the arrows are pointing toward the nose of the chainsaw bar. It's all clean no cracks no discoloration nothing. Locate their perfect setting at which the engine doesnt bog down when the throttle is applied. Thank You for all replies. You can have as many as you wish It has the exact ratio requirement of gas and oil for your specific model. A Stihl chainsaw can bog down for a variety of reasons. Replace it if the quality has deteriorated. To do this: Loosen each bolt about half way down using flathead screwdriver or small wrench (depending on size). When a chainsaw bogs down when accelerating, it typically means the engine is not receiving enough fuel or air. Its starts fine, but if you give it gas it will shut off. All small holes free of residue. Most manufacturers do not recommend adjusting the tuning of your chainsaws carburetor outside the hands of a trained professional. 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. When a clog occurs, your engine will not get enough air to operate effectively. Take them out and clean them using a delicate brush. A carb cleaner spray is an excellent tool for eliminating sticky deposits from your jets and reviving your carburetor. This blog is written by a group of Garden Tool enthusiasts. No particular problem restarting. Ok I think I can share the pics from this site. The new fuel cleans everything really good and what the fuel cleans ends up in the fuel filter or the carburetor screen. If youre finding your chainsaw to be bogging down, check the issues mentioned above to see if you can save yourself a little time and money. no never loaned it out. 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. The inability to reach full power during a full-throttle trigger is also a sign of bogging down. If its clogged, replace it with a clean one. If the compression is low, you should clean and check for any damage or wear. If your chainsaw is bogging down when you press the throttle, it can be a sure sign of an incorrect gas-to-oil ratio. If the spark plug is cracked or damaged, you will need to replace it. if (ry==0) The main reason for an ECHO chainsaw to bog down is the dirty spark arrestor. After checking that, soak the crank seals in motor oil (30w works great) and then give it a go. Even if you are a novice chainsaw operator, these spark plugsshould be updated at least once a year. If your Stihl chainsaw starts up with a reassuring puttering sound, but dies when you pull the throttle trigger, there likely is an issue with the fuel, but the carburetor could need. ry=1 If needed, purchase the tools from a hardware store and make sure you have personal protective equipment (goggles, gloves, etc. ) The engine boggs down under a load and when just reving the saw. Check the fuel tank for the correct fuel and oil mixture, filling it up if necessary. By: Author Olin Wade (Remodel or Move Stuff). Sometimes the L adjustment is insufficient, and you must tweak your fuel delivery components, specifically the carburetor and filters. To unclog the spark arrestor, remove it and clean it with a wire brush. Carburetors alone can be both the cause and the solution to a chainsaw bog down. If your chainsaw bogs down at full throttle, the air filter and . I didn't run straight gas through it and it isn't sized up so I am wanting to dig into the carb myself. Stihl MS 180C running problems, bogging down, fuel starvation?? Stihl Chainsaw Bogs Down When I Give It Gas 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. #1. The gasoline filter can be found at the bottom of your fuel tank. The new fuel doesn't really clog the carbs. :bang: I guess that all depends on your oppinion of what "compressed air" is or isn't Internal check valves? Cleaning a carburetor on a chainsaw without removing it can be done with a few simple steps. Stihl Chainsaw Bog Down and Fix Pilot View Productions 4.54K subscribers Subscribe 11K views 2 years ago PILOT MOUNTAIN Does your Stihl or other brand chainsaw bog down and refuse. 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. removed it and saw functions perfectly. Make sure to take out the spark plug before removing the filter. Author Topic: Stihl MS 180C running problems, bogging down, fuel starvation?? The solution is easy and you can do it within a few minutes. When dropping a tree, what are you guys watching?. Updated: 00/04/25 Too much or little fuel results in engine stalls.The three adjustment screws in the carburetor ((High speed, Low speed and idle) come in handy when preventing stalling.Adjusting the idle screw, for instance, is a corrective measure for a chainsaw stalling when idle. Dirty filters are the main problem. Jul 22, 2008. 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. I would suggest that in the first instance the carburetor settings are checked. So, lesser air is supplied to the carburetor and the saw bogs down. Make sure to properly lubricate your chain with chain oil and check the compression in the cylinder. Gum clogs fuel lines and carburetor.The end result is less supply of fuel for complete combustion to run the saw. The spark plugs spark quality degrades over time, making it impossible to ignite the air-fuel mixture in the combustion chamber. The saw has been well used over the years (1998) and not really well looked after. Rotate the fuel supply lever and keep it in the on position while you spray the carburetor cleaner. Why does the chainsaw bog down at full throttle? I think the problem is ethanol in gas, espesially gas . Also, check the lubrication hole for debris and clean your bar groove. Adjust the high-speed screw to remedy this issue. This will keep your chain in place for the next steps. Set the idle screw to the point just before the chain starts spinning and adjust the low-speed midway between the the two points at which the engine starts to die. Similarly, adjust the other screws, namely the L and H screws, until the RPMs are at an optimal level that prevents the saw from burning out. Guess its time to pull the carby down and check the diaphragm and mesh. Your manual will provide detailed instructions on how to do this. 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. A well-maintained chain-saw seldom stalls. Clogging usually occurs due to long working hours. When a screw (e.g., anL screw) is tightened, the fuel flow to the carburetor is restricted, causing the mixture to be lean. This can be quite annoying, especially when you have loads of work piled up and a mechanic isnt available. Now, remove the filter and clean the dust buildup using a brush. The ignition system includes the spark plugs, ignition coil, and exhaust muffler. First, disconnect the spark plug wire and turn the engine off. Wash it in soapy water with a soft-bristle brush. There are three adjustment screws on the carburetor: low-speed (L), high-speed (H), and idling (I). --If you want more backyard tips including recipes, how-tos and more, make sure you subscribe to my youtube channel, Can Chainsaw Chains Be Shortened? /* In my experience, there are two possible causes of this 'bogging down of the engine' and to resolve this the manufacturer's manual is required or alternatively a little internet investigation. Clean the outside area of the carburetor. Then, remove the air filter and fuel filter. 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. Over time, the spark arrestor can become clogged with soot. Thoroughly inspect your throttle trigger. Clean or replace filters located in the fuel tank of your chain saw. Nearly every weekend you will find us doing small or big jobs or just enjoying our garden. Drain the fuel tank and store the gasoline in an appropriate container before bringing it out. Remove the air filter from its housing using a screwdriver. Where are these located and on what carbs? The carburetor has three adjustment screws marked on it. //specify corresponding links below Conclusion: Why Does My Chainsaw Bogs Down When I Give it Gas in 2023? Page created in 1.341 seconds with 39 queries. 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. Test your stop switch to make sure that it completely stops the motor. All help is appreciated. Allow the cleaner to sit for five to 10 minutes and then wipe away with a cloth. Any factor that might affect supply can cause the chainsaw to bog down. random_imglink2() Get a carburetor repair kit before you begin clearing the blocked jets. Additionally, if the air filter is dirty or blocked, that can also lead to a bogging issue. . No matter how tight the seal on the tank is, replace the gas every three months and use stabilizer. Ozito 25.4 cc 305 bar, starts, easily & comes off choke & idles, will rev up on the ground, pick it up off the ground & it dies & stops, Put back on read more. After this, check the air filter and carburetor for dirt and debris. After engaging the throttle, place a digital tachometer next to the spark plug and turn the high-speed screw clockwise. 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. Imagine you are about to cut down or in the middle of cutting down a tree or wood, and your chainsaw bog down. The one that is often damaged by compressed air is the one inside the high speed nozzle. ( 2 cents) the new gas seems to clog small motors Mike. Check the tension and condition of your chain. Clean air intake slots on the housing of the starter and inspect your starter cord for any damage. Turning it clockwise will increase fuel flow, and turning it counterclockwise will reduce fuel flow. 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. Anobstruction in any of these components may disrupt the fuel flow to the engine, leading to the engine bogging down while idling. Check for any fuel leaks from the motor, fuel tank, or fuel lines. Just took off the muffler and it all looks good. Make sure to take out the spark plug before removing the filter. For a detailed answer, read the causes section above. Adjusting the H screw will help achieve optimal performance. Curtis B. If you have recently bought the saw or it has been sitting for a while and not used, the best option would be to clean the carburetor and set it according to the factory specs. There is no hiding from dirt. You must locate the perfect setting at which the engine won't stop once the throttle is applied. If the problem persists, inspect the fuel lines and ignition system. When the saw bogs down during cutting, it's usually the high-speed screw you need to adjust. Adjusting the idle screw, for instance, is a corrective measure for a chainsaw stalling when idle. Check the edges of the bar for burs and file off if needed. Hence, many people complain- chainsaw bogs down when I give it gas . 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. Then it loses power when cutting. This jet is usually responsible for controlling the fuel/air mixture. Try to make the right call based on the cost and gravity of the issue. After checking and cleaning the filters, see if the carburetor orientation is proper. File every other cutting tooth with smooth, even, pushing strokes, keeping the round file at a 90-degree (right angle) to the rollers. on Chainsaws, Started by H60 Hawk Pilot Take a measuring beaker and add oil and gasoline of the required amount according to the model of your chainsaw. Why does my Chainsaw Bog down when I Pull the Trigger? If the carburetor is clogged or not adjusted properly, it can cause the saw to run out of fuel. Your email address will not be published. Make sure they are closed at a distance and neither touching the engine and not too far from it. These deposits affect the engines operation and may cause your chainsaw not to start. Always clean the outside of your chainsaw after using it to remove any dust or debris that may be present. Make sure it is moveable and not stuck in the open or closed position. There are many factors that cause a bog down, but mostly it is the carburetor orientation or blockage. If you observe any evidence of damage or wear on the air filter, I recommended to replace it. Most Craftsman models have either a standard Walbro or a Zama carburetor. 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 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. If the problem persists, inspect the fuel lines and ignition system. Fix your Lawnmower with our Lawnmower Troubleshooting tool. Fill the tank with the prescribed gas-to-oil ratio. He tests chainsaws based on Save my name, email, and website in this browser for the next time I comment. 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. Answer: Yes, a chainsaw can bog down if gas is supplied to it. If a chainsaw is bogging down when it is throttled, this indicates that the gasoline to oil ratio supplied to the saw has been incorrect. Run a check on your chainsaws cooling system. If the problems remain, examine the fuel lines and carburetor. As mentioned before, most chainsaws will run on one of three gas and two-cycle engine oil mixtures. The answer is simple; you check your chainsaws owners manual. Random Image Link Script- By JavaScript Kit(http://www.javascriptkit.com) It may not display this or other websites correctly. It is experienced during welding, idling, or full throttle. More so, the chainsaw might bog and refuse to run when you give it gas. Pull the starting chord to check resistance. Correcting stalling measures are generally referred to as tune-ups.These procedures help in improving your chainsaw performance. Turning the knob will either tighten or loosen the chain, depending on the direction the user turns the knob. Cleaning Tips The goal when diagnosing issues with bogging down is to implement a quick fix and avoid any disassembly (like the carburetor).