Time is money and by increasing the power, you can cut more in less time. This spark arrestor serves to prevent any sparks, created by the engine, from igniting the material and potentially causing an uncontrollable fire. If you use your chainsaw in the bush for a living, you can consider removing the screen. Updated: 00/04/25 Join Date: Jul 2001. I was just givin' ya the business 'cause you got a new mower, and I'm jealous. Thats one of the main reasons professional chainsaw operators prefer gas chainsaws to electric and battery-operated chainsaws. Hard to beat a Echo srm210. A spark arrestor is a device installed in a chimney to help reduce the risk of a chimney fire. Less than one year old. Carburetor-Air Filter. 2022 LawnMowerForum.com. 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 . I took it back to the dealer for another $40 cleaning. The most common way is to enlarge the exhaust pipe/path with a grinder, drill, or any other machine. The design of the spark arrestor is to hold up the heat coming from the engine. Also, do the state forestry personnel actually make folks take their mufflers apart to check for screens? 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. 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. Crankcase-Cylinder. on Chainsaws. Please. In some chainsaw models, the spark screens are much bigger than the outlet. :usflag: You should totally remove the spark arrestor. In short, if the USFS(United States Forest Service) find you, they would cite you. Echo & SHINDAIWA Genuine 14586240630 Screen Spark ARRESTOR New OEM Factory Package. Mar 8, 2015. Random Image Link Script- By JavaScript Kit(http://www.javascriptkit.com) Stihl Spark Arrestor Screen for MS 261, 271, 291 Chainsaws. This only applies to gasoline weed eaters; Use a socket wrench to remove the spark plug. Cleaning the spark arrestor screen: 1. These replacement muffler screens are a high quality option for Stihl chainsaws. if (ry==0) 01 - Stihl Chainsaw Spark Arrestor. Many dampers are able to be opened and closed manually, while some are motorized and can be opened and closed with a switch or remote control. Get online the best Barkbox Saw Muffler Cover online. Over 200+ free JavaScripts here! Ignition System-Muffler. can you remove em? I keep mine just to keep the bugs and whatever else out. It's back to the front line again even though I have 3 other trimmers I can use. sgt7546. If you remove it, ensure you are not in state lands. 5. The more air it requires, the more fuel it can burn. For 4137. Does anyone know what tool is needed to be able to remove the muffler? 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. myimages[6]="../../../images/top-banner/EZ-junior.jpg" The spark arrester is usually a small screen on the muffler. Stihl Diagrams FS250R Stihl FS 250 Brushcutter (FS250R) Parts Diagram Select a page from the Stihl FS 250 Brushcutter diagram to view the parts list and exploded view diagram. Don't forget the spark arrester screen is also a filter to keep stuff out of your engine. You are using an out of date browser. It's a one peice with no screen to remove. Over 200+ free JavaScripts here! Posts: 18,002. Random Image Link Script- By JavaScript Kit(http://www.javascriptkit.com) You can do it for occasional tree felling or logging. If you own chainsaw like Remington rodeo rm5118r and use it around the house only, you might not need to remove the spark arrestor. Cleaning a spark arrestor is in 2 ways. 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. For most homeowners, I dont think it worth to take the risks. You can strip the baffles for a boost. 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.. Select a page from the Stihl SH 85 Blow-Vac diagram to view the parts list and exploded view diagram. the first thing I do to them, besides adjusting the handle, is removing the spark arrester screen. If the saw sounds good after removal the only thing would be to watch the spark plug right? When this occurs, hot exhaust particles, such as carbon monoxide, can escape the system and be released into the atmosphere, which can be dangerous to both the environment and anyone in the vicinity. The only other link I find asking this question is answered by one chap who tells the OP to refer to the manual but Ive done that & it doesnt help. Manage Settings Rewind Starter-1. In that case, removing screen will not make any difference. No, not all chimneys are required to have a spark arrestor fitted. Use regular gasoline. Dont get caught running in a public forest. Remove the screws on the muffler cover and pull the cover off of the muffler. Granberg Alaskan Sawmills, Parts & Accessories, Skip to the beginning of the images gallery, Stihl Spark Arrestor Screen for MS 261, 271, 291 Chainsaws. imagelinks2[2]="https://www.youtube.com/c/TheForestryForum?sub_confirmation=1" . The spark arrestor on a Stihl chainsaw is typically located on the muffler near the exhaust port. To unclog the spark arrestor, remove it and clean it with a wire brush. Enlarge the internal baffle ports with a screwdriver. US $23.9 You will receive ONE spark arrestor THIS ONE IS FROM STIHL and is GENUINE PART NUMBER: 4140-140-6904 Fits Stihl models: FC 55. . //specify corresponding links below This item: Stihl 4244 140 8100 Muffler Spark Arrestor Screen fits BR350 BR430 BR450 SR430 SR450. If your Stihl won't go above idle, bogs down, is unresponsive o. SKU. It's just a devil to start with the spark arrestor in. Remove the spark arrestor assembly. in all my muffler mods i install Stainless Steel spark screen. I think my 4mix Stihl has one though. Any ideas guys? myimages[2]="../../../images/top-banner/BladesFreeShip.jpg" Additionally, spark arrestors may also be required in certain climates and for certain types of fuel, such as wood or coal. 4. Apart from these, if you are living in USA, you cannot remove it in woods and on Govt. myimages[1]="../../../images/top-banner/ez50-banner.jpg" You can try other muffler modification methods or woods porting for increasing the cutting power. Descripcin en el Video de Stihl. Your email address will not be published. The spark arrestor typically consists of a series of fine steel wire mesh screens, which are designed to block the passage of sparks and embers, while allowing the escape of smoke. 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. Sometimes, this may happen overnight, depending on your climate. random_imglink2() On the other hand, it is very hard to start a fire in the forest in northern Ohio with a chainsaw. Required Part var imagelinks=new Array() My name is Chris Ross. It will most likely run a little leaner, which will make the saw rev higher at wide open throttle. View and Download Stihl FC 75 service manual online. //specify corresponding links below 2. Remove the cover and see the spark arrestor featuring a fine mesh screen attached to the engine housing. var ry=Math.floor(Math.random()*myimages.length) Restart. Keep in mind to add it if you go to cut in state lands later. A junior version. In Stock. Over time, the spark arrestor can become clogged with soot. Engines take fuel to make power. Started by Great Big on Chainsaws. It depends on the open screen area vs muffler outlet size/placement. Then remove the muffler cover with the help of a screwdriver. Received 108 Likes on 98 Posts. If you think the exhaust flow is restricted too much for the spark arrestor, you can remove it. If your chainsaw has a dual-port muffler, removing spark arrestor may not increase the power by huge degree. Over time, the spark arrestor can become clogged with soot. First, you have to make sure about the location of the spark arrestor. The gas chainsaw has 2-stroke engine. This happens if you store your tools for a few days. Page created in 1.242 seconds with 39 queries. There are several things you can check. 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? If the humidity is high and dry, there is a high chance of fire. This price will increase if the arrestor is installed in an area with higher safety requirements, such as a backyard fire pit. I agree, it isn't likely that will help unless you can see that it is plugged up with carbon. If it turning white might have to richen it up due to more air flow now correct? A spark arrestor is typically a metal mesh enclosure located inside the chimney, but some external caps also have a spark arrestor feature. Chainsaw help please! It is simple to understand and implement. 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 Removed the fuel tank air vent and cleaned it. Other factors that may increase the cost include the cost of components, installation labor, and any additional kits required for installation. Jan 28, 2012 / Removing Spark Arrestor. ), take off metal Part 3, and remove Spark Arrestor 2. Thus, the saw engine uses more fuel and increases horsepower. There was a thread a while ago about it. A spark arrestor is designed to trap any glowing sparks before they exit your tailpipe by acting as a filter. All of mine have screens except my 200T, which I never have reason to use on state land. Tried new fuel. Most people just take them out. 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. Reply #1 on: December 23, 2010, 08:46:40 AM . The effect on exhaust flow, I have heard anywhere from 0 to 40%. Without the arrestors, you can experience bugs and mud dobbers living inside your saw engine when you keep them in storage. First, disassemble the spark plug, then remove the outer cover of the leaf blower engine. Both chimney caps and spark arrestors are important components of fire safety and should be used together to ensure the maximum level of safety. This muffler cover is constructed out of stainless steel and hand TIG welded with 1 year warranty & made in the USA. Its killing me at work using a broom! When you purchase through links on our site, we may earn an affiliate commission, which supports our community. Here is a short video on how to remove the spark arrestor on pretty much any Stihl equipment. Upright Translucent Fuel Tank Allows operator to easily check fuel level before starting work. I would check/re adjust the carb after screen removal, will likely have some effect on rpm/tuning of the saw. Whether they get plugged up from carbon, or rust out from being heated up, they need to be replaced often. It is usually black in color and typically made of metal mesh or screen. I'm an arborist by profession & a blogger by passion. Carburetor-Air Filter. - Remove the inner handle The bent leg of the torsion spring molding from the drive tube. The more air it takes, the more fuel it can burn. 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. If you don't need it where your at then take it out. imagelinks2[1]="https://www.youtube.com/c/TheForestryForum?sub_confirmation=1" The effect is from 0% to 40%, depending on the open screen area vs. muffler outlet size/placement. GOOD AS NEW! Removed the muffler and de-carbonised it. 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. . 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. After about a month of use, it was losing power so I returned it to the dealer. The following steps should be taken to clean a clogged spark arrestor: 1. On my stihl handheld blower the muffler has a little piece that is threaded in right where the exhaust exits. Stihl Muffler Stub Spark Arrestor w/Screen fits BG55 BG56 BG85 BG86 Blowers. I posted this ? Upright position makes it easier to refill. There are tons of ways to modify a gas saw. This is a simple fix. If it seems ok, then reassign to its position. Not an expert but more flow out would mean taking more in? Carburetor C1Q-S68A. You can have as many as you wish Many, many years ago, I was excited to purchase my first blower, it was an echo. Yes, cleaning a spark arrestor with carb cleaner is a quick and easy way to clean the unit without having to take it apart. Gain access to the muffler. My Stihl backpack blower was running at about 1/2 power, did the normal pm- plug, fuel filter, air filtersame issue. Any ideas would be much appreciated. Using starting fluid. In Hayfork, California, Nobody runs their chainsaws without arrestors. Bugs can be a problem, fire is not in most cases. For the best experience on our site, be sure to turn on Javascript in your browser. RDMJ.STIHL KM 94R. $1326. Clean the Spark Plug. Stihl 192T spark arrestor. Login with username, password and session length. #3. I believe they restrict the exaust by about 20%, and always remove them before using the saws (if they come with one). 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Muffler near the exhaust port located inside the chimney, but some external also! An arborist by profession & a blogger by passion 3, and any additional kits for! From the drive tube on a Stihl chainsaw spark arrestor can become clogged with.. Turn on JavaScript in your browser bugs can be a problem, fire is not in state lands later online...