I opened up and matched the muffler base to the exhaust port since it was very slightly blocking the port on one side. 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. . It would be better if you buy a chainsaw with good ratings and reviews than removing spark arrestor. Senior Member x2; Posts: 12728; . Removing the spark arrestor relieves back pressure in the exhaust so the engine can move more air through the exhaust. Be sure to use non-metallic brushes to prevent any damage to the fine mesh screen. Remove the screws securing the spark arrestor and detach it from the muffler. http://www.lawnsite.com/showthread.php?t=382404. I checked the obvious.plug, air filter, even changed the fuel filter..no help. JavaScript is disabled. Third, replace fuel filter in fuel tank. All parts that fit a SH 85 Blow-Vac . 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. I believe so. This thread has me thinking that I'll going to pull the muffler/spark arrestors on my trimmer and chain saw and soak them overnight in some solvent and then blow them out with the air gun. When the damper is closed, cold air is not able to enter the structure. */ Whether they get plugged up from carbon, or rust out from being heated up, they need to be replaced often. Tu direccin de correo electrnico no ser publicada. The muffler outlets on the 2800 are on each side of the muffler about midway where the two halves meet. This is the first thing to wear out on a muffler. Have you cleaned that screen with a wire brush and or soaked it in carb cleaner and then brushed it ? Sometimes, this may happen overnight, depending on your climate. Pull off the plate and remove the spark arrestor screen. Sep 29, 2014. Ive checked & cleaned the fuel pickup & air filter. Page 7 Screw IS-DG5x24 Cylinder/crankcase Spark plug M14x1.25 Spark plug 15.0 20.0 Screw IS-M4x20 Ignition . Starting a fire by chainsaw sparks depends on climate and humidity. Apart from these, if you are living in USA, you cannot remove it in woods and on Govt. The US forest service will fine you if they can catch you. Spray with carburetor cleaner until you can see through all of the holes in the screen. This only applies to gasoline weed eaters; Use a socket wrench to remove the spark plug. on Chainsaws. I agree, it isn't likely that will help unless you can see that it is plugged up with carbon. The recent change to HP Ultra and the added techron probably freed up enough extra crud to finally choke the machine. The outlet hole on a stock muffler is recessed and the screen covers a larger area above the opening. One in particular is 14 years old and has never needed anything up until this past season where the carb went bad. To view the purposes they believe they have legitimate interest for, or to object to this data processing use the vendor list link below. Its killing me at work using a broom! FREE delivery Monday, March 6 if you spend $25 on items shipped by Amazon. Clean the Spark Arrestor. 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. //-->. We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development. If the spark arrestor is clogged, the chainsaw may run stall or run rough. The Forestry Forum is sponsored in part by: 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. Select Page CRANKCASE-CYLINDER. I'm sure there are repercutions for to lean or rich. A couple of months later, it was acting up again. Some of our partners may process your data as a part of their legitimate business interest without asking for consent. If you use your chainsaw in the bush for a living, you can consider removing the screen. For a better experience, please enable JavaScript in your browser before proceeding. If the spark arrestor is clogged, the chainsaw may run stall or run rough. I'm an arborist by profession & a blogger by passion. This same procedure will apply to many Stihl Grass Trimmers. Rewind Starter-1. 7. 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. Cleaning a spark arrestor is in 2 ways. Cleaned the screen, reinstalled, and the old Stihl runs like new. Add. In this post, you will learn the risks (fire, fine, bugs & more) and benefits(More HP & torque) of removing the spark arrestor screen. Start by disconnecting the spark plug lead wire from the spark plug cap. - Remove the inner handle The bent leg of the torsion spring molding from the drive tube. Over time, the spark arrestor can become clogged with soot. sgt7546. Select a page from the Stihl BR 340 Backpack Blower diagram to view the parts list and exploded view diagram. Step 5. 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. You are using an out of date browser. Spark arrestors are typically built into the exhaust system, in the form of screens or other materials designed to catch and contain any emitted sparks. Required fields are marked *. 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. JavaScript is disabled. Even if you live in the outside USA and have no such rules and regulations, I highly suggest you not to remove it at hot and dry climate. It's normally cleaned with carbon cleaner and a wire brush. If your saw muffler has a very fine mesh screen, use a less restrictive mesh screen. Question: Besides adding to the worlds c. I took it back to the dealer for another $40 cleaning. Hi guys, my blower is running rough when I open it at full throttle. 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. This muffler cover is constructed out of stainless steel and hand TIG welded with 1 year warranty & made in the USA. In Hayfork, California, Nobody runs their chainsaws without arrestors. This is an easy fix to do yourself. You may notice a lot of stinkbugs in chainsaws or other power tools. Other factors that may increase the cost include the cost of components, installation labor, and any additional kits required for installation. The possibility of starting a fire depends on the climate which varies one location to another. I opened up the interior baffle holes slightly and added a couple more small holes. Location: USA. 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 Don't forget the spark arrester screen is also a filter to keep stuff out of your engine. If it turning white might have to richen it up due to more air flow now correct? Yes, spark arrestors need regular cleaning to maintain their effectiveness. Many, many years ago, I was excited to purchase my first blower, it was an echo. .RDMJ2.470.V.AFINACION. Or fastest delivery Thursday, March 2. 30 Replies 33288 Views March 24, 2009, 01:10:08 PM by IndyIan . If you use the right gas mix, tune the saw right and use synth. Stihl Muffler Stub Spark Arrestor w/Screen fits BG55 BG56 BG85 BG86 Blowers. Fan Housing Outer-Fanwheel. Doing so will result in huge fine. When cleaning a spark arrestor, use a non-metallic brush to loosen any dirt, carbon, or buildup on the mesh screen. You'll more than likely need a carb adjustment after removing the screen I would think. 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? Additionally, it is important to keep all spark arrestors cleaned and serviced regularly in order to ensure that they are functioning properly.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,600],'remodelormove_com-medrectangle-4','ezslot_2',156,'0','0'])};__ez_fad_position('div-gpt-ad-remodelormove_com-medrectangle-4-0'); Cleaning a clogged spark arrestor is a simple but important task for safe operation of outdoor power equipment that uses an internal combustion engine, such as lawnmowers, chainsaws, and leaf blowers, to name a few. :laughing: Did NOT know that. May 3, 2011. It's a very fine screen is DOES restrict the exhaust flow a little. We strive to provide opinions, articles, discussions and history related to Hearth Products and in a more general sense, energy issues. ry=1 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. Just waiting for my new catalog and I know they are expensive but was going to use the OEM dual ports from Bailey's. My assumption is this is to guard against modification. We strive to provide opinions, articles, discussions and history related to Hearth Products and in a more general sense . Please. It runs the way I remembered it ran, plenty of power on the 16" bar. If that is the only thing you change - there must be some reason that screen is restricting the exhaust flow. Mar 3, 2020. The Fora platform includes forum software by XenForo. Required fields are marked *. Like Andy says, gotta have screens out here. imagelinks2[3]="https://www.youtube.com/c/TheForestryForum?sub_confirmation=1" In my experience, a lot of people just remove them.