stihl chainsaw bogs down when i give it gas

If this is the case, the only alternative is to replace the spark plug. 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. Clogging slows down the engine from in-taking fuel and air, which results in a bog down at full throttle. 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 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. Why Is My Chainsaw Bogging Down? (3 Common Causes) var myimages=new Array() 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. First, remove the old fuel line from the fuel tank. (Even After Sharpening). Rotate the saw and file the remaining teeth using the same angle and motions as before. It could even bog down when given gas. Just took off the muffler and it all looks good. Tips from a Professional, Chainsaw Starts but Wont Idle. Replace it if the quality has deteriorated. Start by identifying the carburetor on your saw. California. */ All fuel supply components must be independently examined to address these difficulties, as discussed in the following sections. They wrote it up as I ran straight gas through it and seized it. It bogs down it seems and stalls out when I open the throttle. Using a screwdriver, remove the air filter cover on the back of your chainsaw. These deposits often accumulate at the fuel filter or carburetor jets, eventually blocking them and impeding fuel flow. Generally, you will find the fuel filter on the fuel line, usually near the carburetor. Why does my Stihl chainsaw dies when I give it gas? You should also check the spark plug and air filter to make sure that they are not clogged or damaged. It has a new spark plug, clean air filter, n Chainsaw bogs down in cut in Chainsaws Have a Stihl 441 that starts and idles fine and even start cutting. Fuel stabilizers are a must-have for any chainsaw owner who fanciesleaving their equipment idle.They help prevent gum formation in fuel tanks. Required fields are marked *. 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. If the band is measuring less than 0.6 mm (0.024 in) at the most worn part, you need to replace the brake band. Check the fuel tank for the correct fuel and oil mixture, filling it up if necessary. (3 Common Causes). 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. There are many factors that cause a bog down, but mostly it is the carburetor orientation or blockage. Required fields are marked *. Random Image Link Script- By JavaScript Kit(http://www.javascriptkit.com) Click to see full answer. I think I am having the same problem with mine. If your chainsaw bogs down at full throttle, the air filter and . Unscrew the carburetor cover and expose the main jet. 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. 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. The best way to clean the spark arrestor screen is to unplug the spark plug wire and use a metal brush. 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. I took it back to the dealer and he said he adjusted something and handed back saying it would work fine. Finally, replace the fuel filter and air filter and reconnect the spark plug. In case it is not the fuel ratio, it might be dirty or clogged air filters. The air filter in your chainsaw protects your chainsaw from dirt and debris by filtering it out before it can reach the engine. Maintenance is the key to sustenance. I didn't run straight gas through it and it isn't sized up so I am wanting to dig into the carb myself. The main reason for an ECHO chainsaw to bog down is the dirty spark arrestor. myimages[3]="../../../images/top-banner/LX25-FreeShipping.jpg" My Chainsaw Bogs Down When I Give It Gas; Causes and Solutions [2023]. If the kit comes with welch plugs I take those out too. The speed would be perfect, and there would be no unusual sound when the screws are properly aligned. After checking and cleaning the filters, see if the carburetor orientation is proper. Remove the muffler. A new chainsaw has some protocols to follow. myimages[4]="../../../images/top-banner/ez50-banner.jpg" Just not sure what I am doing. The above answer may be brief, but I will explain it in more detail, including how to fix a chainsaw that wont start. The Author The dream of everyone in the lumbering field is to have a powerful and efficient chainsaw devoid of mechanical faults. 8 Reasons a String Trimmer is Running Rough or Bogging Down This is crucial since an idle chain is extremely harmful. The spark plugs spark quality degrades over time, making it impossible to ignite the air-fuel mixture in the combustion chamber. This helps identify the compression. 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. To adjust the tension on the chain, the user simply turns a knob located near the drive sprocket. random_imglink2() 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. I have never worked on anything this saw. The inability to reach full power during a full-throttle trigger is also a sign of bogging down. 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. Dealing with a carburetor requires strict guidelines to be followed. Thanks for the replies; I'll try out these suggestions. I have a MS250 that's only two years old and has barely been used. That should help improve the performance of the chainsaw and resolve the issue of your saw stalling when you give it gas. Another plausible explanation for the stalling is attributed to the percentage of ethanol in the fuel.Ethanol readily vaporizes and combines with water in the air to form water.This water stops combustion which is necessary for running the motor.Experts counsel that fuel containing up to 10% ethanol has a tendency to separate varnishes from the gas, resulting in accumulation in fuel lines and tank.The residue counters combustion in the carburetor. A dirty or damaged spark plug can cause it to misfire causing the string trimmer to run rough. 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. To unclog the spark arrestor, remove it and clean it with a wire brush. Or maybe gas varnish in the screen filter at the base of the metering needle. 0 Members and 1 Guest are viewing this topic. I doubt it has more than four or five hours on it. When not constructing or remodeling X-Ray Rooms, Cardiovascular Labs, and Pharmacies, you can find him at home with wife and two daughters. Re-attach the carburetor cover and test the saw. Knowing how to mix fuel properly is the first step to ensuring that your chainsaw will stay up and running for years to come. Question: What's the reason for the chainsaw to die under heavy load? As a result, the fuel drawn by the carburetor reduces, causing the engine to stop running. This is usually behind the air filter, but if you have trouble locating it, consult your user manual. This is done by turning the air screw in either direction, depending on the engines response. There are a number of carburetor-related problems. It idles fine but after you rev it up it looses power. Clean both of these components if they are dirty. This dirt and debris can build up and create a clog. 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? If needed, purchase the tools from a hardware store and make sure you have personal protective equipment (goggles, gloves, etc. ) Remove the carburetor and check it for damage, cleaning it if necessary. I guage the rakers and grind them when necessary. no never loaned it out. Check the fuel hose, famous for cracking. Together we put a lot of effort into the maintenance of our gardens over the last few years, we become obsessed with it. This blog is written by a group of Garden Tool enthusiasts. To do this: Loosen each bolt about half way down using flathead screwdriver or small wrench (depending on size). No matter how tight the seal on the tank is, replace the gas every three months and use stabilizer. The first step is to make sure that your chainsaw has enough fuel. If you experience this scenario, the orientation of your carburetor has likely changed. Chain-saw requires constant maintenance to be efficient. Correct mixing of fuel ingredients. A carb cleaner spray is an excellent tool for eliminating sticky deposits from your jets and reviving your carburetor. If you don't keep the blade oiler reservoir filled, you will have dulled blades, damaged bars, and generally poor performance. Random Image Link Script- By JavaScript Kit(http://www.javascriptkit.com) Select gasoline with a minimum octane rating of 89 and a maximum ethanol content of 10%. on Chainsaws. Align the screws on the carburetor. Mix in a premium 2-cycle oil that is ISO-L-EGD and JASO M345 FD certified. Once the faulty seal or gasket is identified, it needs to be replaced, and the engine should be up and running. It has a new spark plug, clean air filter, n Welcome, Guest. Furthermore, the arrestor screen that catches the spark at the exhaust port is prone to carbon deposits. How to Hang a Chainsaw to keep it Safe and Protected in 2023? Re: Stihl MS 180C running problems, bogging down, fuel starvation?? Empty and clean, if needed. Heres a quick rundown of daily, weekly, and monthly maintenance tips: Chains will loosen over time and use. myimages[5]="../../../images/top-banner/cookie-mizer.jpg" On the first day the crew used it, it was bogging down. Tuning of the screws to adjust and align them. This is partly due to clogged filters resulting from long working hours and less air supply to the carburetor (which will be discussed later). Use big lines will for fuel filter lines connected to the inside of the tank.Also, use smaller of two lines for return to the fuel tank from the carburetor from the primer bulb. If user's chainsaw is bogging down than this is often a sign of improper gas-to-oil ratio. Burnt plugs could mean the fuel combustion is too high or high ethanol concentration.To cure this, replace the sooty plug with a new one to prevent misfiring when cutting firewood.Ensure you adjust the carburetor to reduce the amount of gas used. Aside from the screw setting, you need to check and make sure that the spark plug is in prime working condition. To check if theres a vapor lock, unscrew the tanks cap and put it back on again. 2. Clogging usually occurs due to long working hours. You should use mid-grade unleaded gasoline with a minimum octane rating of 89 and a premium two-cycle oil. 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 any part of that ratio is off (as previously mentioned), your chainsaw will experience a lag in performance. 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. Make sure to properly lubricate your chain with chain oil and check the compression in the cylinder. The Forestry Forum is sponsored in part by: I doubt it has more than four or five hours on it. Vapor lock occurs when the fuel vapor pressure builds up considerably in the fuel tank and isnt allowed to escape from the tank vents. To unclog the spark arrestor, remove it and clean it with a wire brush. Check cooling fins on the cylinder and clean if needed. Why does my chainsaw stall when gas is given? Next, check the spark plug to make sure it is clean and properly connected. Frustrating, right? Chainsaw bogs on full throttle #63708 18/04/15 11:39 PM. Home Why Is My Chainsaw Bogging Down? If the spark plug looks good, check the fuel mix. Run a check on your chainsaws cooling system. Chainsaw Dies after Letting off the Throttle. Tips from a Professional Why Does My Chainsaw Bog Down When I give it Gas? Why does my Stihl chainsaw bog down when I give it gas? STIHL Chainsaws FAQs | STIHL Product FAQs - STIHL - The Number One It's the carburetor's job to regulate the amount of fuel in the cylinder, and it has been preset at the factory to accomplish that task. can cause a chainsaw to bog down when cutting. The Basics Explained, Can a Concrete Chainsaw Cut Through Rebar? One of these is not being fed to the chainsaw in the proper ratio. Stihl Chainsaw - Chainsaw Starts Then Stalls - Repair Clinic Find the source of the issue and you can easily fix it. Stihl MS250 dies when I give it gas. | Arborist, Chainsaw & Tree Work Forum Consult the user manual for the right ratio of gas to oil. By, Read More Chainsaw Too Much Compression: Causes & SolutionContinue, Your email address will not be published. They are Sthil chains. New Husqvarna 550XP had to be reprogrammed. Check for any fuel leaks from the motor, fuel tank, or fuel lines. document.write('') 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. Turning it clockwise will increase fuel flow, and turning it counterclockwise will reduce fuel flow. 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. L and H on your chainsaw. Your email address will not be published. What it needs is proper maintenance on a daily, weekly, and monthly basis. Quick Answer: Why Does My Chainsaw Cut To The Right Bog down is straight-up the most infuriating issue when using a chainsaw. 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. Found the problem. It is responsible for mixing fuel and supplying it to the engine. Disengage the chain brake and manually advance through the chain until you reach your starting point mark. Make sure they are closed at a distance and neither touching the engine and not too far from it. Additionally, the choke might be stuck in either the open or closed position and preventing the engine from running properly. ry=1 If your chainsaw is bogging down when you press the throttle, it can be a sure sign of an incorrect gas-to-oil ratio. Sometimes the L adjustment is insufficient, and you must tweak your fuel delivery components, specifically the carburetor and filters. Stihl Chainsaw Bog Down and Fix - YouTube The spark arrestor is a small screen that prevents the engine from emitting sparks. If the spark plug is fouled, it means that it is unable to ignite the fuel being provided to the cylinder. Lastly, you should clean the air filter and replace it if necessary. 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. Yea, its not rocket science but reality. 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. Started by ellinghamso Run the saw in idle and make sure the idle speed is consistent, and then rev it up and listen for any unexpected changes in engine noise. Clear all dirt and debris from the saw body, chain, and bar. Lastly, its time to play mixologist. The new fuel cleans everything really good and what the fuel cleans ends up in the fuel filter or the carburetor screen. Where are these located and on what carbs? 20,427 satisfied customers. myimages[6]="../../../images/top-banner/EZ-junior.jpg" Start by sharpening the cutting teeth of the blade first. 1 Hour1 Day1 Week1 MonthForever skytower, Oct 3, 2010. Take a measuring beaker and add oil and gasoline of the required amount according to the model of your chainsaw. The use of stale ethanol-blended fuel, which creates sticky white deposits over time, is the most typical source of such clogs. 6. 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. Cant get a good picture becouse of the glare of the piston. If your chainsaw doesnt start, adjust the carburetor screws till it doesnt bog down. Stihl chainsaw engine ( motor ) bogging down things to check first. Inspect the fuel line condition. For that you require a carburetor cleaner. Chainsaw Bogging with throttle pressure - Hearth.com Forums Home 01 - Stihl Chainsaw Spark Arrestor. We and our partners use cookies to Store and/or access information on a device. Associate Degree. Its all about adjusting the carburetor, and a slight change in the orientation can lead to Chainsaws Bog. 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. To remove it you need to depress a small tab and slide the fuel line off. Stalling is a symptom of a complication in the chain-saw. Answered by Patrick, Top 10 Best Chainsaw Bars Tested and Compared for 2023, How does a Chainsaw Carburetor Work? Tighten the idle screw with a screwdriver to fix this and see whether the engine RPMs rise. Solution: Here's the solution. Why does the Husqvarna chainsaw bog down at full throttle? This jet is usually responsible for controlling the fuel/air mixture. Stihl carburetors have three adjustment screws. Oct 29, 2011. Chainsaw Bogs Down? (4 Main Reasons + Solution) - Wood Hungry The air supply is equally as important as fuel for a combustion engine. Use a 50:1 gas-to-oil mixture in your 2-cycle Stihl chainsaw. File every other cutting tooth with smooth, even, pushing strokes, keeping the round file at a 90-degree (right angle) to the rollers. As mentioned before, most chainsaws will run on one of three gas and two-cycle engine oil mixtures. Chainsaw Bogs When on its Side?!?!? - Hearth.com Forums Home 4. Clean out the air filter and carburetor. If your chainsaw doesn't start, adjust the carburetor screws till it doesn't bog down. If the fuel you are using is too old or is diluted, your chainsaw will not work correctly.