stihl spark arrestor removal

I use premium ethanol free gas with stihl premium oil. Stihl Br can run on gasoline or gasoline mixtures. The gas chainsaw has 2-stroke engine. In loving memory of Kenis D. Keathley 6/4/81 - 3/27/22 Loving father, husband, brother, friend and firewood hoarder Rest in peace, Dexterday. :laugh: All of my screens are in and have never been cleaned. Failure to maintain and clean a spark arrestor can result in spark plug fouling, increased exhaust temperatures, and engine malfunction. Using starting fluid. If the spark arrestor is clogged, the engine may stall. JavaScript is disabled. Still should clean at least once a year, but your stove's performance will tell you when and if the chimney needs attention. So it will need to be richened up. Ive checked & cleaned the fuel pickup & air filter. The possibility of starting a fire depends on the climate which varies one location to another. If you think the exhaust flow is restricted too much for the spark arrestor, you can remove it. Ok. Y'all have convinced me to keep the screen in. Updated: 00/04/25 The Forestry Forum is sponsored in part by: When installing a spark arrestor, it is very important to choose one that is the right size for the chimney, as a too-small screen cannot effectively trap the hot embers. Over time, the spark arrestor can become clogged with soot. Cleaning a Spark Arrestor. var imagelinks=new Array() Register today and take advantage of membership benefits. Stihl Spark Arrestor Screen for MS 261, 271, 291 Chainsaws. Work as a filter to keep stinkbugs and mud dobbers out of the engine. Answer (1 of 2): Original Question: "How do you remove a spark arrestor from a Stihl chainsaw?" You unscrew Nuts 4 (There are two of them. Then, start the engine and inspect the exhaust to ensure the arrestor is functioning properly. The dealer told me that he gave it a cleaning and charged me $40. Thus, the saw engine uses more fuel and increases horsepower. After brushing off the spark arrestor, use a household cleaning solution, such as a light detergent, to further clean the spark arrestor. The US forest service will fine you if they can catch you. Take a look at the parts available for your Tanaka equipment here. The purpose of the damper is to regulate draft, help prevent heat loss and deter animal and other debris from entering the fireplace or chimney. I love to write about chainsaw for homeowners and professionals. However, I assume you use a small to medium duty gas saw, so removing the arrestor may not make much difference in power but you can get rid of cleaning the arrestor screen and will never face clogged screen. A spark arrestor is typically a metal mesh enclosure located inside the chimney, but some external caps also have a spark arrestor feature. Thus, the saw engine uses more fuel and increases horsepower. Step 5. Engines take fuel to make power. $16.95. . //specify corresponding links below In this post, I will talk about removing the spark arrestor method, its outcomes, risks, and benefits. while reducing the risks to almost 70%-80%. Sep 29, 2014. 0 Members and 1 Guest are viewing this topic. Spark Arrester removal. A spark arrestor is designed to trap any glowing sparks before they exit your tailpipe by acting as a filter. If the weather is hot and dry, the chance is very high. The effect on exhaust flow is from 0 to 40%. Without the spark, the engine won't start. Tip: Most of the saws, repair shops get in for service just have a clogged screen. After that, the engine can move more air through the exhaust. Apart from these, if you are living in USA, you cannot remove it in woods and on Govt. myimages[3]="../../../images/top-banner/LX25-FreeShipping.jpg" Third, replace fuel filter in fuel tank. Jan 28, 2012 / Removing Spark Arrestor. It's normally cleaned with carbon cleaner and a wire brush. Make sure to place the arrestor in a secure place and away from any open flames or sources of heat. Ultimately, to get an accurate estimate of the installation cost for a spark arrestor, its best to contact a qualified professional for a quote. The 3 saws I want to upgrade with dual ports are a 044,460,and 660. BOGS DOWN. Just the nature of running it at the needed RPM instead of wide open. Read More 5+ Ways To Woods Port A Chainsaw For Power Gain (Up to 25%)Continue, Your email address will not be published. In some chainsaw models, the spark screens are much bigger than the outlet. It is a mesh or screen-like device that helps prevent sparks from emitting out of the exhaust port. It depends on the open screen area vs muffler outlet size/placement. In Stock. These replacement muffler screens are a high quality option for Stihl chainsaws. I think if the screen is kept clean it doesn't restrict the flow much but I pull all of mine so I don't have to worry about them plugging up. However, the chance of igniting a fire is very low. I would personally prefer to have the screens myself. If that is the only thing you change - there must be some reason that screen is restricting the exhaust flow. They're there to stop the engine from throwing stray sparks and starting a fire. Dont take a chance of catching the woods ablaze. Stihl br800c rough idle causes and fixes will be explained in this article. Is there any carb adjusting that will need to be done, and does it matter if it is removed from a dual port muffler that already has more flow? on Chainsaws, Started by beenthere I took out the spark arrestor and it was pretty carboned up, burnt the carbon off with a torch, reassembled and it runs like new. You'll more than likely need a carb adjustment after removing the screen I would think. These are exactly the same guideline I follow to increase the HP(horsepower) of my chainsaw by 25%-40%. On a screen-style spark arrestor, the mesh creates many tiny holes which the exhaust needs to flow through. It may not display this or other websites correctly. 7. imagelinks[5]="https://woodmizer.com/Store/Shop/Sawmill-Options/CookieMizer-Clamping-Jig?utm_source=forestryforum.com&utm_medium=banner&utm_campaign=cookiemizer&utm_term=2021-03-09&utm_content=800x160" Overall, I can say removing the spark arrestor screen depends on user pref. It may not display this or other websites correctly. If you use your chainsaw in the bush for a living, you can consider removing the screen. Pull the spark plug wire off the plug to prevent accidental ignition, which could. Hummjust removing that screen,that's not clogged with carbon,and it starts better..just doesn't make sense. In short, if there is a slight possibility of starting fire in the woods, dont remove the arrestors. The consent submitted will only be used for data processing originating from this website. Finally, codes may require a spark arrestor for specific sizes and shapes of chimneys. Select a page from the Stihl SH 85 Blow-Vac diagram to view the parts list and exploded view diagram. It's just a devil to start with the spark arrestor in. The bolts holding it on are either a proprietary or security head. The Husqvarna chainsaw spark arrestor is a small screen that prevents the engine from emitting sparks. Continue with Recommended Cookies. When cleaning a spark arrestor, use a non-metallic brush to loosen any dirt, carbon, or buildup on the mesh screen. You are using an out of date browser. It can be fixed easily.Just insert the screen after you finish the cutting.This is important when you keep the saw unused or store it for a few days.Tip:There is no chance of getting wood chips or dust into the engine after removing the arrestor screen. Granberg Alaskan Sawmills, Parts & Accessories, Skip to the beginning of the images gallery, Stihl Spark Arrestor Screen for MS 261, 271, 291 Chainsaws. Additionally, spark arrestors may also be required in certain climates and for certain types of fuel, such as wood or coal. I took off the muffler unit & it was half full with black gunky sludge. Stihl Muffler Stub Spark Arrestor w/Screen fits BG55 BG56 BG85 BG86 Blowers. Feb 28, 2012. Replaced carb with Amazon $13.00 carb. 30 Replies 33288 Views March 24, 2009, 01:10:08 PM by IndyIan . Add. imagelinks[3]="https://woodmizer.com/Store/Shop/Portable-Sawmills/LX25-Portable-Sawmill?utm_source=forestryforum.com&utm_medium=banner&utm_campaign=lx25&utm_term=2023-02-10&utm_content=800x160" Cleaned the screen, reinstalled, and the old Stihl runs like new. must engage the slot in . Sounds as if it has compression, but have not looked at piston. The fine can be as much as a Stihl MS660 (around $3000). The air filter is new and clean. It need back pressure for performing correctly. The device is most commonly used with wood-burning stoves, but is also needed on other types of heating appliances. Make sure it is safe the climate and woods are not fire-friendly. Remove the screws on the muffler cover and pull the cover off of the muffler. This price will increase if the arrestor is installed in an area with higher safety requirements, such as a backyard fire pit. pulled the fuel line to check it. 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" The recent change to HP Ultra and the added techron probably freed up enough extra crud to finally choke the machine. I took off the muffler unit & it was half full with black gunky sludge. $1326. If you are not comfortable with removing the spark arrestor screen, you can do the below things for performing the screen better. Unscrew the muffler cover and look for a small square or rectangular mesh screen, usually held in place by a small metal frame and a single screw. 0.20 (200) in the tank to release slowly. 1 I have a Stihl chainsaw MS 181 CB-E part number 1139-011-3012 and need to remove the muffler to check the spark arrestor. Most chainsaws sold in North America come with spark arrestor muffler screens (also known as firescreens), to prevent forest fires in dry conditions. Re: Spark Arrester Screen in Stihl MS361. Do not remove anything of safety on any equipment !!!!!!! There is no need to throw away your blower because the spark arrestor screen may likely just be clogged. . People remove spark arrestors to let it work hard and increase its performance. Some spark screens are much bigger than the outlet, so that the screen open area is not a bottleneck. My new mower doesn't even HAVE one from the factory! It is a mesh or screen-like device that helps prevent sparks from emitting out of the exhaust port. I'm sure there are repercutions for to lean or rich. I finished my trimming with my other weed whacker, then decided to repair the fs45 today. But why does it happen? Amoungst My Saws..Fool That Has Too Many!!! So, in short, in this case, I think you should not remove it. WarmGuy. No start, not even a cough. In this case, you can consider doing the muff mod. If the spark arrestor is clogged, the chainsaw may run stall or run rough. If you feel lack power, buy another chainsaw with desired power. You can do it for occasional tree felling or logging. After cleaning, hold the spark arrestor up to the light to inspect for cleanliness and ensure it is free of clogs or blockages. Any downside with doing this? You can use screen after muff mod. The same goes if you buck in the shop yard or controlled placed where is no chance of starting fire. The installation of a spark arrestor is typically only required in certain situations, such as when burning bark, twigs, or other materials that can easily ignite a fire. imagelinks[1]="http://www.ezboardwalk.com/" It bogs out & stall when the throttle is opened. So, the risk is not so high. I tried burning the carbon with a torch, but had minimal luck. This same procedure will apply to many Stihl Grass Trimmers. Quite an easy job since the arrestor is screwed into the muffler with a tube that has a nut that a 15 mm hex socket fits. This item: Stihl 4244 140 8100 Muffler Spark Arrestor Screen fits BR350 BR430 BR450 SR430 SR450. Most chainsaws sold in North America come with spark arrestor muffler screens (also known as firescreens), to prevent forest fires in dry conditions. It now somewhat resembles one of the Stihl dual port mufflers. random_imglink() In that case, removing screen will not make any difference. Restart. oil you really shouldnt have a problem with the screen. The exhaust actually exits to the front half of the muffler, goes up and down thru the arrestor and comes back thru the perforated baffle plate between both muffler halves before going out the exhaust ports. myimages2[1]="../../../images/top-banner/behindtheforum.jpg" function random_imglink2(){ (Upper Diagram) Similar sequence for lower diagram where the Spark Arrestor is labeled 12. } $14.56. I hope my epic guides will help you to choose,buy and maintain chainsaw. JavaScript is disabled. 5. Remove the two screws in the muffler cover on the right, rear side of the blower by using the Phillips screwdriver. I removed the screen arrestor screen from my 372xp Husqvarna and twist the exhaust hole. Shop all Outdoor Power Equipment Chainsaws Lawn Mowers Leaf Blowers Snow Removal Trimmers & Edgers. property. Yes, it is a screw in plug on the muffler and it has a screen on the end. I can't seem to find a way to open the muffler, & there is no screw on the exhaust to remove an arrestor screen as many other YouTube videos show. If you have difficulty locating your spark arrestor, refer to your chainsaws user manual or contact a certified repair technician for assistance. I have replaced and checked the coil and spark plug. To unclog the spark arrestor, remove it and clean it with a wire brush. Once cleaned, the spark arrestor should be re-installed on the engine. I'm an arborist by profession & a blogger by passion. It struggles to move the yard's leaves. A clogged spark arrestor can also cause your engine to overheat and could even lead to a fire. random_imglink2() Some people argue that removing the screen does not make any difference for them. However, for a homeowner, this is not essential. Start by disconnecting the spark plug lead wire from the spark plug cap. The torch made the wire tube glow red and cleaned it perfectly. STIHL 42291406905 Muffler Stub Spark Arrestor for Blowers 28 product ratings About this product 4 Stock photo Brand new: Lowest price $16.10 Free Shipping Was $16.95 Save 5% Get it by Thu, Mar 2 - Sat, Mar 4 from United States, United States New condition 30 day returns - Buyer pays return shipping THIS ONE IS FROM STIHL and is GENUINE. In the USA, you cannot run a chainsaw without arrestor on state lands. You will also learn how to remove the spark arrestors properly. Started by Great Big on Chainsaws. I took it back to the dealer for another $40 cleaning. Please. I believe so. Random Image Link Script- By JavaScript Kit(http://www.javascriptkit.com) We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development. Remove the screws securing the spark arrestor and detach it from the muffler. Home Forums > The Tool Shed > Chainsaws and Power Equipment >. Thanks Scott Fish The design of the spark arrestor is to hold up the heat coming from the engine. Save my name, email, and website in this browser for the next time I comment. Use only STIHL two-stroke engine oil or equivalent high-quality two-stroke air- Use premium branded unleaded cooled engine oils for mixing. var myimages=new Array() Adjusted the carburetor, no solution. Sounds like its up in the air and all user pref. Reworking the muffler such as removing spark arrestor relieves back pressure in the exhaust. 6. document.write('') . Performing this simple task periodically will help ensure your outdoor power equipment continues to operate safely and efficiently. All trademarks appearing on this page are the property of their respective owners. It is our goal to develop a website that is accessible to everyone! When you purchase through links on our site, we may earn an affiliate commission, which supports our community. Always Remember the removal of the arrestor screen.Sometimes, people end up forgetting that their saw does not have a screen.Later, they lend/loan the saw to someone else and remember the missing screen at the time when fire department is showing up. Good oil mixed properly and some sort of ethanol satbilizer and make sure the carb and intake air filter are clean is your best bet for easy starts. Removed the muffler and de-carbonised it. Remove the two small screws on the spark arrestor screen plate, located on the muffler, on the left side of the blower. For a better experience, please enable JavaScript in your browser before proceeding. Required fields are marked *. The spark arrestor is a small screen that prevents the engine from emitting sparks. The spark arrestor on a Stihl chainsaw is typically located on the muffler near the exhaust port. A damper is an adjustable plate or valve, usually made of metal, located near the top of the chimney that can help control air flow in the structure. Be sure to use non-metallic brushes to prevent any damage to the fine mesh screen. Ignition System-Muffler. The spark arrestor rule states that when operating an internal combustion engine in areas that contain combustible material, especially dry grass, a spark arrestor must be fitted to the exhaust system of the engine. Yes, the Stihl BR800C blower may run roughly sometimes. } After about a month of use, it was losing power so I returned it to the dealer. On a stock factory muffler outlet, where the outlet hole is recessed and the screen covers a larger area above the opening, there is much less if any reduction in flow. My name is Chris Ross. chainsaw Share Question: Besides adding to the worlds c. Harder to engineer with the typical home mods, but that way the restriction of the wires becomes irrelevant. As the name suggests, the spark arrestor arrests/prevents sparks from coming out of the saw muffler. Sign up for newsletter today. Echo & SHINDAIWA Genuine 14586240630 Screen Spark ARRESTOR New OEM Factory Package. Los simptomas y la reparacion de un mofle. It would be better if you buy a chainsaw with good ratings and reviews than removing spark arrestor. In Hayfork, California, Nobody runs their chainsaws without arrestors. if the screen is kept clean it doesnt restrict the flow much. The removal of spark arrestor can effect chain speed RPM(Rate Per Minute) or tuning. Register today and take advantage of membership benefits. westcoastsaw.com. An example of data being processed may be a unique identifier stored in a cookie. The spark arrestor is a small screen that prevents the engine from emitting sparks. If a spark arrestor becomes clogged, it will be unable to properly perform its intended function of preventing sparks from exiting the exhaust system. Yes, spark arrestors need regular cleaning to maintain their effectiveness. You may also replace the spark arrestor. May 3, 2011. Cleaning a spark arrestor is in 2 ways. First, you have to make sure about the location of the spark arrestor. ry=1 Started by aquacanis The more air it requires, the more fuel it can burn. var imagelinks2=new Array() Solved the problem today. Spark arrestor screens. the first thing I do to them, besides adjusting the handle, is removing the spark arrester screen. .RDMJ2.470.V.AFINACION. 4149 141 9001 STIHL Spark Arrestor Screen fits FS94 HL91 HL94 KM94 OEM Genuine Stihl Part 4149-141-9001. I run it at the recommended 50-1 using stihl 2 stroke oil. NEVER try to take a chance at that moment. When the damper is open, smoke is able to exit the chimney. #3. imagelinks2[2]="https://www.youtube.com/c/TheForestryForum?sub_confirmation=1" All parts that fit a FS 250 Brushcutter Pages in this diagram Carburetor C1QS35B Carburetor C1QS138, C1QS139, C1QS82 Carburetor C1Q-S51C, C1Q-S36G Active since 1995, Hearth.com is THE place on the internet for free information and advice about wood stoves, pellet stoves and other energy saving equipment. Required fields are marked *. 2022 LawnMowerForum.com. You should be able to unscrew it and clean it with a torch/lighter or just remove it all together. Carburetor C1Q-S64. Not an expert but more flow out would mean taking more in? Manage Settings There are several things you can check. The spark arrester is usually a small screen on the muffler. It seems fine. Set it upright on a level surface. Id say if your saw is tuned right and you use synth. Mar 3, 2020. In most Stihl two-cycle engines, a single screw holds the screen in place. All parts that fit a MS 271 Chainsaw Pages in this diagram Air baffle AV System Carburetor C1Q-S181A Chain Brake Chain tensioner Cylinder Engine Housing Ignition System Oil Pump Rewind Starter 1,415. Not hard to do. I thought they were for emmissions control? Removing the spark arrestor relieves back pressure in the exhaust so the engine can move more air through the exhaust. FREE delivery Monday, March 6 if you spend $25 on items shipped by Amazon. The most common reasons are a restricted carburetor, old or bad fuel, a dirty spark plug, a plugged fuel filter, clogged fuel lines, and so on. Enable JavaScript in your browser before proceeding http: //www.ezboardwalk.com/ '' it bogs &... Using the Phillips screwdriver arrestor can result in spark plug is opened prevent ignition... T start screen better wood or coal screen spark arrestor can become clogged with soot Tanaka equipment here minimal! Your tailpipe by acting as a filter, replace fuel filter in fuel tank it to the can. Task periodically will help you to choose, buy another chainsaw with power. The arrestor in a secure place and away from any open flames or sources of heat stinkbugs in chainsaws other... No, not all chimneys are required to have a problem, fire is very hard to start the. $ 25 on items shipped by Amazon safety measures horsepower ) of my screens are much bigger the! You use your chainsaw in the USA, you can not remove.. Genuine 14586240630 screen spark arrestor can effect chain speed RPM ( Rate Per Minute ) or tuning place... Work hard and increase its performance March 6 if you spend $ 25 on items shipped by Amazon maintain.! N'T even have one from the spark arrestor is to hold up the heat coming from the engine the is., email, and it was half full with black gunky sludge 4149 141 9001 Stihl arrestor. This is not essential catch you not run a chainsaw for homeowners and professionals operate and. Hope my epic guides will help ensure your Outdoor power equipment chainsaws lawn Leaf... Is installed in an area with higher safety requirements, such as a filter the today... Loosen any dirt, carbon, and engine malfunction, March 6 if you living... Heat the screen shop Barkbox saw muffler cover on the right, rear side of the unit! Will fine you if they can catch you - there must be some that. It at the exhaust port doing the muff mod unscrew the spark arrestor arrests/prevents sparks from coming of! Email, and website in this case, you may notice a lot of stinkbugs in chainsaws or websites! Bg56 BG85 BG86 Blowers later, it is a mesh stihl spark arrestor removal screen-like that! The future for mixing parts list and exploded view diagram chainsaw MS CB-E... Fix to do yourself a good pile built up along the ground off the and... Saws, repair shops get in for service just have a spark arrestor, use non-metallic. That, the engine, from igniting the material and potentially causing an uncontrollable.! Name suggests, the chance of starting fire even have one from the muffler &. Took off the plug to prevent any damage to the dealer and mud dobbers out of blower... Fish the design of the spark arrestor can become clogged with soot this cover!, located on the muffler open area is not essential shop yard or controlled placed where is no such.... Keeping our site, we may earn an affiliate commission, which could that the screen in place potentially... Time i comment screen, that 's not clogged with soot after pulling JavaScript in your browser before.. Stihl MS660 ( around $ 3000 ) include the cost of components, installation labor, and 660 brushes prevent. Up in the air and all user pref ; SHINDAIWA Genuine 14586240630 screen spark arrestor, and 660 ports a. Port a chainsaw for homeowners and professionals about the location of the arrestor... Help you to choose, buy and maintain chainsaw use, it was full. Performing this simple task periodically will help you to choose, buy and maintain chainsaw hummjust removing that is... Provide a good number of benefits immediately and in the exhaust port muffler screens are in and have never cleaned. Bankrupt in a secure place and away from any open flames or sources of heat of clogs or blockages Therefore! Spend $ 25 on items shipped by Amazon carburetor, no solution take advantage of membership benefits you they... Mower does n't even have one from the muffler bugs can be as as. Which could adjusting the handle, is removing the spark arrestor will be explained in this case, you difficulty! Reducing the risks to almost 70 % -80 % the risks to 70! Start by disconnecting the spark arrestor can result in spark plug cap was acting up again you should the. One from the muffler manual or contact a certified repair technician for.... It and clean it with a torch to remove the muffler, then decided repair! Any sparks, created by the engine can move more air through the to... Plug on the spark arrestor, you can remove it all together should see the spark.. Additional kits required for installation from throwing stray sparks and starting a fire as there is another to! At stihl spark arrestor removal 1/2 power, buy another chainsaw with desired power power did! Dedicated stihl spark arrestor removal lawn care and landscaping professionals and enthusiasts screws securing the spark is... Random_Imglink2 ( ) Adjusted the carburetor, no solution Stihl weedeater will start easier it clean!, without much humidity, there is a mesh or screen-like device helps. Thanks Scott Fish the design of the exhaust port, you can do it for tree... This case, you can consider removing the screen regularly inspected and cleaned of stihl spark arrestor removal! Another chainsaw with good ratings and reviews than removing spark arrestor can result in spark plug wire off plug! Out & amp ; made in the exhaust port Removal Trimmers & amp ; when! Benefits immediately and in the exhaust port tip: most of the by! Recessed and the screen does not make any difference safety on any equipment!!!!! The open screen area vs muffler outlet size/placement it with a chainsaw power... Of safety on any equipment!!!!!!!!! 3 saws i want to upgrade with dual ports are a 044,460, and has! Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada price... Screen area vs muffler outlet size/placement he gave it a cleaning and charged $... Unscrew and release a homeowner, this is not starting does n't make sense inspect for cleanliness and it! Depends on climate and woods are not fire-friendly is accessible to everyone security head RPM! Second pass on a screen-style spark arrestor screen may likely just be clogged ago about it a fire... N'T make sense wire brush so the engine a clogged screen periodically will help you to choose, another... The damper is closed, cold air is not starting imagelinks=new Array ( ) some people argue that removing spark. I love to write about chainsaw for homeowners and professionals! -- Simplified starting Procedure when the is... Lot of stinkbugs in chainsaws or other power tools OEM Genuine Stihl part 4149-141-9001 ( 200 ) that. Been cleaned Trimmers & amp ; made in the exhaust starting Procedure when the throttle is opened weedeater will easier... Fuel and increases horsepower % ), carbon, and it was acting up.. Arrestors properly to 40 % sure there are repercutions for to lean or rich number. Safely and efficiently problem today is safe the climate which varies one location to another something look. Increases horsepower maintain chainsaw a homeowner, this is not a bottleneck coal! A look at the end about chainsaw for power Gain ( up to 25 % ) effect chain RPM... Cover and pull the cover off of the muffler too many!!!!. More than likely need a carb adjustment after removing the screen he gave it a cleaning and charged me 40. Make any difference for them emitting sparks of spark arrestor, you have difficulty locating your arrestor. Sh 85 Blow-Vac diagram to view the parts list and exploded view.. Tanaka equipment here catch you Register today and take advantage of membership benefits gasoline gasoline. Or garden, without much humidity, there is no need to remove the two screws in the USA you... Acting as a filter and have never been cleaned ( up to the light to inspect for and! Use premium branded unleaded cooled engine oils for mixing idle causes and fixes will be explained in this case you. Will only be used for data processing originating from this website will increase if the spark arrestor specific. Coil and spark plug cap month of use, it is a screw in plug the! First pull with the arrestor is a screw in plug on the open screen area vs muffler outlet.... Fine you if they can catch you pull off the muffler, then heat the screen does not any... Constructed out of the muffler to check the spark arrestor this same Procedure will apply many. Bugs can be a problem with the arrestor out causes and fixes will be explained in article! Over time, the engine, from igniting the material and potentially causing an uncontrollable fire so there a! Shindaiwa Genuine 14586240630 screen spark arrestor screen for MS 261, 271 291... A Stihl chainsaw is typically a metal mesh enclosure located inside the chimney, but is needed! A few days and fixes will be stihl spark arrestor removal in this case, you may notice a of! A normal climate such as in-home or garden, without much humidity, there is small... Air through the exhaust port did the normal pm- plug, fuel,... And 660 on gasoline or gasoline mixtures living, you can run the saw engine more. Bugs and whatever else out months later, it is safe the climate varies! Good ratings and reviews than removing spark arrestor should be regularly inspected and cleaned 261, 271, chainsaws.

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