Stihl Br can run on gasoline or gasoline mixtures. Engines take fuel to make power. This is the first thing to wear out on a muffler. The gas chainsaw has 2-stroke engine. Mar 8, 2015. Usually, you can find it inside the muffler. :usflag: You should totally remove the spark arrestor. Remove the two screws in the muffler cover on the right, rear side of the blower by using the Phillips screwdriver. I tried burning the carbon with a torch, but had minimal luck. . QS 1141 140 8100. Reinstall the spark arrestor onto the engine and reattach the spark plug lead wire. You must log in or register to reply here. On a screen-style spark arrestor, the mesh creates many tiny holes which the exhaust needs to flow through. Clean the Spark Plug. It may be tired, dirty, or maybe any of the problems that also happen to the machines. After about a month of use, it was losing power so I returned it to the dealer. The main risk of removing spark arrestor screen is the possibility that it can start a fire. WarmGuy. Upright position makes it easier to refill. 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. If that is the only thing you change - there must be some reason that screen is restricting the exhaust flow. Additionally, spark arrestors may also be required in certain climates and for certain types of fuel, such as wood or coal. This video shows how to fix a clogged spark arrestor screen on a small 2 cycle engine. on Chainsaws, Started by beenthere - Remove the inner handle The bent leg of the torsion spring molding from the drive tube. Fan Housing Inside . It would be better if you buy a chainsaw with good ratings and reviews than removing spark arrestor. It is our goal to develop a website that is accessible to everyone! 3. If it turning white might have to richen it up due to more air flow now correct? In this case, you can consider doing the muff mod. There is no need to throw away your blower because the spark arrestor screen may likely just be clogged. I hope my epic guides will help you to choose,buy and maintain chainsaw. On the other hand, it is very hard to start a fire in the forest in northern Ohio with a chainsaw. 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. if the screen is kept clean it doesnt restrict the flow much. Mar 3, 2020. It will most likely run a little leaner, which will make the saw rev higher at wide open throttle. Stihl Muffler Stub Spark Arrestor w/Screen fits BG55 BG56 BG85 BG86 Blowers. You can try other muffler modification methods or woods porting for increasing the cutting power. The climate is not in favor of fire. It now somewhat resembles one of the Stihl dual port mufflers. I believe they restrict the exaust by about 20%, and always remove them before using the saws (if they come with one). oil, your screen would not clog. Page 7 Screw IS-DG5x24 Cylinder/crankcase Spark plug M14x1.25 Spark plug 15.0 20.0 Screw IS-M4x20 Ignition . It runs the way I remembered it ran, plenty of power on the 16" bar. I have the FS56 RC-E, the spark arrestor screen is held in place in the muffler opening by a single flat head screw. The bolts holding it on are either a proprietary or security head. In Stock. Some of our partners may process your data as a part of their legitimate business interest without asking for consent. If you think the exhaust flow is restricted too much for the spark arrestor, you can remove it. The consent submitted will only be used for data processing originating from this website. myimages2[1]="../../../images/top-banner/behindtheforum.jpg" This item: Stihl 4244 140 8100 Muffler Spark Arrestor Screen fits BR350 BR430 BR450 SR430 SR450. function random_imglink(){ myimages[5]="../../../images/top-banner/cookie-mizer.jpg" 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. myimages[1]="../../../images/top-banner/ez50-banner.jpg" Allow the chainsaw to cool for 10 minutes or so if you have been using it. The sparks are very small and are not enough to start a fire in most cases. For 4137. 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(typeof ez_ad_units!='undefined'){ez_ad_units.push([[320,50],'remodelormove_com-leader-3','ezslot_15',164,'0','0'])};__ez_fad_position('div-gpt-ad-remodelormove_com-leader-3-0');if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[320,50],'remodelormove_com-leader-3','ezslot_16',164,'0','1'])};__ez_fad_position('div-gpt-ad-remodelormove_com-leader-3-0_1');.leader-3-multi-164{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}Ultimately, it is best to check with your local building code authority to determine if your chimney requires a spark arrestor under the current regulations. If your Stihl won't go above idle, bogs down, is unresponsive o. As the name suggests, the spark arrestor arrests/prevents sparks from coming out of the saw muffler. You may notice a lot of stinkbugs in chainsaws or other power tools. All parts that fit a BG 85 Blower . If you use the right gas mix, tune the saw right and use synth. For sure the guys cutting in the woods or on Govt. WDH if you leave it out just check the carb tuning. Remove the cover and see the spark arrestor featuring a fine mesh screen attached to the engine housing. The Husqvarna chainsaw spark arrestor is a small screen that prevents the engine from emitting sparks. Once you start removing screens it becomes the normal and you will end up forgetting your saws do not have screens. All trademarks appearing on this page are the property of their respective owners. Gain access to the muffler. 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.. 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? Does anyone know what tool is needed to be able to remove the muffler? Being in the cutting services for more than 10 years, I know a thing or two about chainsaw. This is a simple fix. Changed the sparkplug, no solution. 1,415. Posts: 18,002. You can see very small sparks from the exhaust when operating the saw in a dark environment, such as at night or in the evening. Get Fast, Free Shipping with Amazon Prime FREE Returns. #3. You should be able to unscrew it and clean it with a torch/lighter or just remove it all together. 7. Started by aquacanis When the damper is open, smoke is able to exit the chimney. NEVER try to take a chance at that moment. There are several things you can check. It's a very fine screen is DOES restrict the exhaust flow a little. 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. //specify random images below. Spark arrestors are devices that are fitted to the exhaust system to prevent hot particles of soot from being spewed into the atmosphere. Also, do the state forestry personnel actually make folks take their mufflers apart to check for screens? Reply #1 on: December 23, 2010, 08:46:40 AM . Failure to maintain and clean a spark arrestor can result in spark plug fouling, increased exhaust temperatures, and engine malfunction. I run it at the recommended 50-1 using stihl 2 stroke oil. I have replaced the spark plug but it still runs rough. The device is most commonly used with wood-burning stoves, but is also needed on other types of heating appliances. It's just a devil to start with the spark arrestor in. Stihl Spark Arrestor Screen for MS 261, 271, 291 Chainsaws. You can consider a second exhaust port for better airflow. Select Page CRANKCASE-CYLINDER. Any particles larger than the holes in the mesh will be stopped. Manage Settings All parts that fit a SH 85 Blow-Vac . } Some screen is very restrictive. I believe so. 0 Members and 1 Guest are viewing this topic. If you remove it, ensure you are not in state lands. 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. Register today and take advantage of membership benefits. Stops getting saw dirt from sucked back into the engine, No need to clean or worry about clogged screen, Clean spark arrestor from time to time. 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. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Doing so will result in huge fine. If your chainsaw has a dual-port muffler, removing spark arrestor may not increase the power by huge degree. Set H L screws to factory settings. A spark arrestor is a device installed in a chimney to help reduce the risk of a chimney fire. You can modify the gas saw for more horsepower for demanding tasks. 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). Joined Nov 16, 2011 Messages 785 . It may not display this or other websites correctly. SKU. AISEN Tune Up Kit for BR350 BR430 BR450 BR450C-EF SR430 SR450 Blower Air Filter. Yes, a chimney needs a damper! 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. In short, if the USFS(United States Forest Service) find you, they would cite you. The Fora platform includes forum software by XenForo. :msp_biggrin: i keep mine in mainly to keep bugs and mud dobbers out of the engine when it is stored. Come join the discussion about performance, modifications, classifieds, troubleshooting, maintenance, and more! Look at the diagram and find parts that fit a Stihl BG 85 Blower, or refer to the list below. 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. The C in RC is for "Comfort", which means it's an easy start model. Bailey's is NOT an authorized STIHL Dealer.OEM parts are new. Thanks to all the great advice on this forum I have done my first muffler mod to my very low hour 14 year old Poulan 2800. It is usually black in color and typically made of metal mesh or screen. It bogs out & stall when the throttle is opened. 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