Please Diagnose Hard-Starting Stihl MS250. Over time, no matter what oil is being used, unless you run the motor at WOT all the time the screen will plug over with deposits. The more air it takes, the more fuel it can burn. Login with username, password and session length. 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. 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. ), take off metal Part 3, and remove Spark Arrestor 2. BOGS DOWN. Does anyone sell the stainless screen material or is this just a hardware store type item? A Stihl spark screen has open area equal to 25% of screen area. From IN, stationed in Port Angeles, WA, but AK is. Amsoil user here and my mix is 80:1. they all come off mine as soon as I get them home.the low rpms and power loss are too much of a downfall to leave them on. If you suspect that the spark arrestor is clogged, it is important to have it serviced as soon as possible in order to avoid any potential problems. myimages2[1]="../../../images/top-banner/behindtheforum.jpg" Sounds as if it has compression, but have not looked at piston. We and our partners use cookies to Store and/or access information on a device. Additionally, spark arrestors may also be required in certain climates and for certain types of fuel, such as wood or coal. Step 2: Remove The Spark Arrestor. Posts: 18,002. Replaced carb with Amazon $13.00 carb. The device is most commonly used with wood-burning stoves, but is also needed on other types of heating appliances. Then, use a wire brush to brush off the outside and inside of the spark arrestor to remove the debris and any carbon build up. Mar 3, 2020. The fire danger is so high. A junior version. westcoastsaw.com. 7. Upright Translucent Fuel Tank Allows operator to easily check fuel level before starting work. 4. 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. chainsaw Share Get online the best Barkbox Saw Muffler Cover online. Apart from these, if you are living in USA, you cannot remove it in woods and on Govt. If the spark arrestor is clogged, the engine may stall. Without the spark, the engine won't start. #3. One in particular is 14 years old and has never needed anything up until this past season where the carb went bad. Over time, the spark arrestor can become clogged with soot. Remove the cover and see the spark arrestor featuring a fine mesh screen attached to the engine housing. You can strip the baffles for a boost. Keep in mind to add it if you go to cut in state lands later. That said, . We strive to provide opinions, articles, discussions and history related to Hearth Products and in a more general sense, energy issues. Carburetor C1Q-S64. You can have as many as you wish Yes, it is a screw in plug on the muffler and it has a screen on the end. You can remove it for cutting at home or garden without any restriction by law, but you must use it to cut on any state or federal land. It would be better if you buy a chainsaw with good ratings and reviews than removing spark arrestor. Dont take a chance of catching the woods ablaze. The torch made the wire tube glow red and cleaned it perfectly. I would not worry about the spark safety factor.its a U.S Regulation thing..I don't think they even have them on saws in most parts of the world. The problem I have is I,m not a carb tuner my saws are still factory set 3/4 1/4 wouldn't know how to adjust them. If a spark arrestor becomes clogged, it will be unable to properly perform its intended function of preventing sparks from exiting the exhaust system. imagelinks[4]="http://www.ezboardwalk.com/" I'm an arborist by profession & a blogger by passion. The spark arrestor is a small screen that prevents the engine from emitting sparks. Will crank of first pull without spark arrestor. in all my muffler mods i install Stainless Steel spark screen. Apart from the live bugs, it also prevents saw dirt which can be a problem for your saw later. It may not display this or other websites correctly. imagelinks2[2]="https://www.youtube.com/c/TheForestryForum?sub_confirmation=1" In short, if there is a slight possibility of starting fire in the woods, dont remove the arrestors. The 3 saws I want to upgrade with dual ports are a 044,460,and 660. Started by Great Big on Chainsaws. myimages2[2]="../../../images/top-banner/behindtheforum.jpg" Using starting fluid. random_imglink2() Also, do the state forestry personnel actually make folks take their mufflers apart to check for screens? Cleaned the screen, reinstalled, and the old Stihl runs like new. I know a guy who was fined $6 million for starting a fire in the forest with his modified bike. Stihl 192T spark arrestor. A couple of months later, it was acting up again. that maximizes the output while minimizing the risks. Sounds like its up in the air and all user pref. Most people just take them out. However, the chance of igniting a fire is very low. To properly clean the spark arrestor, spray the carb cleaner directly onto the unit and allow the cleaner to penetrate and begin to dissolve the carbon deposits. It now somewhat resembles one of the Stihl dual port mufflers. Spark arrestor screens. In that case, removing screen will not make any difference. Then pulled the spark arrestor apart and the screen was essentially plugged. You will also learn how to remove the spark arrestors properly. Over 200+ free JavaScripts here! WDH if you leave it out just check the carb tuning. Ignition System-Muffler. Select Page CRANKCASE-CYLINDER. Unscrew the spark arrestor from the muffler, then heat the screen with a torch to remove all the carbon buildup. Updated: 00/04/25 Your email address will not be published. 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" */ the first thing I do to them, besides adjusting the handle, is removing the spark arrester screen. on Chainsaws. This item: Stihl 4244 140 8100 Muffler Spark Arrestor Screen fits BR350 BR430 BR450 SR430 SR450. imagelinks[1]="http://www.ezboardwalk.com/" I have replaced the spark plug but it still runs rough. document.write('') ry=1 Therefore, you may not worry about starting a fire as there is no such possibility. Ive checked & cleaned the fuel pickup & air filter. Its killing me at work using a broom! The most common way is to enlarge the exhaust pipe/path with a grinder, drill, or any other machine. I have moved the L screw on my 044 to get more responsive throttle and the idle screw on the 460 when I built it but thats it. If you think the exhaust flow is restricted too much for the spark arrestor, you can remove it. If you like my content please subscribe and like my videos. In Stock. It is usually black in color and typically made of metal mesh or screen. I have replaced and checked the coil and spark plug. var myimages2=new Array() Failure to maintain and clean a spark arrestor can result in spark plug fouling, increased exhaust temperatures, and engine malfunction. Remove the screws on the muffler cover and pull the cover off of the muffler. Any downside with doing this? 6. Once you start removing screens it becomes the normal and you will end up forgetting your saws do not have screens. Get it Jan 25 - 27. Doing so will result in huge fine. Gain access to the muffler. However, for a homeowner, this is not essential. 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. It's a very fine screen is DOES restrict the exhaust flow a little. 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? They come from various sources.Ships in 7-10 Days. I run Stihl HP Ultra and have never had to clean out carbon. That KAT muffler doesn't have an arrestor. If you remove it, ensure you are not in state lands. Similarly, when the Stihl BR 430 Spark arrestor got damaged, it couldn't create the spark. We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development. Third, replace fuel filter in fuel tank. As a homeowner, you will only cut in your home, yard or garden. Location: USA. No, a chimney cap and a spark arrestor are not the same. For most homeowners, I dont think it worth to take the risks. You are using an out of date browser. It's not like a car where the muffler is 15 feet long, it's only a couple inches to a port directly into the cylinder. One day you could loan this saw out to a buddy, or you go to help him out, and you remember about the missing screens about the time the fire department is showing up. A Stihl spark screen has open area equal to 25% of screen area. I took it back to the dealer for another $40 cleaning. myimages2[3]="../../../images/top-banner/behindtheforum.jpg" 5. Fourth, clean or replace air filter. if (ry==0) Like Andy says, gotta have screens out here. Have you cleaned that screen with a wire brush and or soaked it in carb cleaner and then brushed it ? Engines take fuel to make power. After cleaning, hold the spark arrestor up to the light to inspect for cleanliness and ensure it is free of clogs or blockages. Register today and take advantage of membership benefits. They're there to stop the engine from throwing stray sparks and starting a fire. It will most likely run a little leaner, which will make the saw rev higher at wide open throttle. Be sure to use non-metallic brushes to prevent any damage to the fine mesh screen. For the best experience on our site, be sure to turn on Javascript in your browser. As the name suggests, the spark arrestor arrests/prevents sparks from coming out of the saw muffler. First, make sure that you are using fresh fuel mix (never store or use fuel mix older than 60 days in can or fuel tank). I use premium ethanol free gas with stihl premium oil. Chainsaw help please! document.write('') myimages[1]="../../../images/top-banner/ez50-banner.jpg" Rewind Starter. while milling with a husky 181 i have indeed started a small fire. $14.56. The gas chainsaw has 2-stroke engine. Pull the muffler cover off the blower, and slide the spark arrestor. All parts that fit a BR 340 Backpack Blower Pages in this diagram Air Filtter Backplate Carburetor BR340 L WT-580 Carburetor HD-28D Control Handle Control handle 46.2001 Control handle BR420C Conversion Kit BR-SR Crankcase Cylinder Removed the muffler and de-carbonised it. myimages[6]="../../../images/top-banner/EZ-junior.jpg" On the other hand, it is very hard to start a fire in the forest in northern Ohio with a chainsaw. Pull off the screen or check if there is another screw to unscrew and release. The STIHL anti-vibration system helps reduce operator fatigue and provides a more comfortable working experience. For 4137. To avoid this, it is important to periodically clean the spark arrestor. 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. For a better experience, please enable JavaScript in your browser before proceeding. JavaScript seems to be disabled in your browser. Ultimately, to get an accurate estimate of the installation cost for a spark arrestor, its best to contact a qualified professional for a quote. Tip: Most of the saws, repair shops get in for service just have a clogged screen. Set it upright on a level surface. Get Fast, Free Shipping with Amazon Prime FREE Returns. All parts that fit a BG 85 Blower . Required fields are marked *. STIHL 009 1998 STIHL HT 131 Pole Saw 2012 STIHL FS 110 R Trimmer 2010 STIHL BR 600 Magnum Blower 2012. sawguy21. 2022 LawnMowerForum.com. Do not remove anything of safety on any equipment !!!!!!! It's a one peice with no screen to remove. exhaust was pointing straight down and caught the fine sawdust on fire. All parts that fit a SH 85 Blow-Vac . Over 200+ free JavaScripts here! When you purchase through links on our site, we may earn an affiliate commission, which supports our community. The consent submitted will only be used for data processing originating from this website. For the best experience on our site, be sure to turn on Javascript in your browser. First, disassemble the spark plug, then remove the outer cover of the leaf blower engine. 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. Keep the moisture down to around 18%, & you may be OK. I believe so. And today, Im going to show you how I did it. In this case, you can consider doing the muff mod. Please. Somebody had the area figured out and I cant remember the numbers. It bogs out & stall when the throttle is opened. Once cleaned, the spark arrestor should be re-installed on the engine. Over time, the spark arrestor can become clogged with soot. The BG 86, while having the same 27.2cc engine popular on much of the homeowner trimmer/blower lineup, actually is a pretty rugged little unit with a beefier AV system, throttle lock and hardened/upgraded crank+rod bearings. You can have as many as you wish After arrestor removal, the saw may sound like it is running faster. 0 Members and 1 Guest are viewing this topic. Save my name, email, and website in this browser for the next time I comment. It is a mesh or screen-like device that helps prevent sparks from emitting out of the exhaust port. Posted via Mobile Device B bullofthenorthwood Registered Joined Dec 10, 2011 20 Posts Sometimes, this may happen overnight, depending on your climate. or requests on how to improve this sites accessibilty for all users. If more flow is the main idea then it sounds like a second exhaust port is in order, most saws will benefit from it. For a better experience, please enable JavaScript in your browser before proceeding. var ry=Math.floor(Math.random()*myimages.length) Bugs could be a problem, fire is not. It is important for your safety, as well as the safety of others around you, that the spark arrestor is properly maintained and in good condition . 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. Most of the time, if someone is having issues with their spark arrestor screen fouling out badly, it is either because they are running too much oil in their mix (like Echo. I was just givin' ya the business 'cause you got a new mower, and I'm jealous. Spark Arrestor. Does anyone know what tool is needed to be able to remove the muffler? May 3, 2011. //specify corresponding links below Changed the sparkplug, no solution. 4244 140 8100 STIHL Muffler Spark Arrestor Screen fits BR350 BR430 BR450 OEM Genuine Stihl Part 4244-140-8100, Stihl 4144 141 9000 Spark Arrestor Screen 4144-141-9000, 1130 141 9000 SPARK ARRESTOR SCREEN GENUINE STIHL OEM fits 017 018 MS170 MS180, 4149 141 9001 STIHL Spark Arrestor Screen fits FS94 HL91 HL94 KM94 OEM Genuine Stihl Part 4149-141-9001, Husqvarna Craftsman Poulan Replacement Spark Arrestor Screen # 530023796, Pro Circuit Spark Arrestor Screen 1 1/2" PC4000-0002, Pro Circuit Spark Arrestor Screen: 3.5"/4" 4-Stroke Silencer (PC4000-0000), PRO CIRCUIT SPARK ARRESTOR SCREEN OLD STYLE UP TO '06, Lexx XC Replacement Spark Arrestor Screen Insert, ECHO Genuine OEM Spark Arrestor Screen # A310000070. The screen in my Poulan 2800 seems like it would be very restrictive and I would definitely like to make it a greater diameter with more surface area if possible. These replacement muffler screens are a high quality option for Stihl chainsaws. Remove the screws securing the spark arrestor and detach it from the muffler. Register today and take advantage of membership benefits. FREE delivery Monday, March 6 if you spend $25 on items shipped by Amazon. Thanks Scott Fish A forum community dedicated to lawn care and landscaping professionals and enthusiasts. Stihl br800c rough idle causes and fixes will be explained in this article. It bogs out & stall when the throttle is opened. 5+ Ways To Woods Port A Chainsaw For Power Gain (Up to 25%). Carburetor-Air Filter. . When the damper is closed, cold air is not able to enter the structure. I'm sure there are repercutions for to lean or rich. First, you have to make sure about the location of the spark arrestor. View and Download Stihl FC 75 service manual online. My beloved Stihl BG85C about 12 years old is not starting. if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[320,50],'remodelormove_com-box-3','ezslot_4',173,'0','0'])};__ez_fad_position('div-gpt-ad-remodelormove_com-box-3-0');if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[320,50],'remodelormove_com-box-3','ezslot_5',173,'0','1'])};__ez_fad_position('div-gpt-ad-remodelormove_com-box-3-0_1');.box-3-multi-173{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:50px;padding:0;text-align:center!important}The spark arrestor on a Stihl chainsaw is typically located on the muffler near the exhaust port. We strive to provide opinions, articles, discussions and history related to Hearth Products and in a more general sense . My new mower doesn't even HAVE one from the factory! Second, clean spark arrester screen in the muffler. This spark arrestor serves to prevent any sparks, created by the engine, from igniting the material and potentially causing an uncontrollable fire. I think my 4mix Stihl has one though. on someone elses thread and didn't get a response probably because most were done with it, if you cut in an area where where fire is not an issue like wet or damp woods and bucking in the shop yard over gravel can removing your spark arresters help boost exhaust flow and performance? Screen arrestors come in different ratings depending on how . Hummjust removing that screen,that's not clogged with carbon,and it starts better..just doesn't make sense. On a screen-style spark arrestor, the mesh creates many tiny holes which the exhaust needs to flow through. 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. To unclog the spark arrestor, remove it and clean it with a wire brush. 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. 1952 TEA Fergusan Tractor, Stihl MS361, 460 & 200T, Jonsered 490, Jonsereds 90, Husky 350 & 142, Homelite XL and Super XL, Quote from: Reddog on December 23, 2010, 08:46:40 AM, Location: "nothing here is required" Mi based. 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" Random Image Link Script- By JavaScript Kit(http://www.javascriptkit.com) Add. This only applies to gasoline weed eaters; Use a socket wrench to remove the spark plug. Make sure to place the arrestor in a secure place and away from any open flames or sources of heat. The exhaust path is the gateway to reach the chainsaws inside part. IDRY Vacum Kiln, LT40HDWide, BMS250 sharpener/setter 742b Bobcat, TCM forklift, Sthil 026,038, 461. 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. People remove spark arrestors to let it work hard and increase its performance. If you are not comfortable with removing the spark arrestor screen, you can do the below things for performing the screen better. All of mine have screens except my 200T, which I never have reason to use on state land. Set H L screws to factory settings. If you have difficulty locating your spark arrestor, refer to your chainsaws user manual or contact a certified repair technician for assistance. Continue with Recommended Cookies. Stihl Spark Arrestor Screen for MS 261, 271, 291 Chainsaws. ,