Stihl 192T spark arrestor. In a normal climate such as in-home or garden, without much humidity, there is almost no chance of starting a fire. 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. You may notice a lot of stinkbugs in chainsaws or other power tools. They're there to stop the engine from throwing stray sparks and starting a fire. When the damper is open, smoke is able to exit the chimney. For a better experience, please enable JavaScript in your browser before proceeding. In this post, I will talk about removing the spark arrestor method, its outcomes, risks, and benefits. 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? You should be able to unscrew it and clean it with a torch/lighter or just remove it all together. To avoid this, it is important to periodically clean the spark arrestor. Clean the Spark Arrestor. . On a screen-style spark arrestor, the mesh creates many tiny holes which the exhaust needs to flow through. It is a mesh or screen-like device that helps prevent sparks from emitting out of the exhaust port. Once the product has had time to do its job, remove any loose particles with a dry cloth and allow the spark arrestor to completely dry out before placing it back into your engine. All parts that fit a SH 85 Blow-Vac . So, in short, in this case, I think you should not remove it. Whether they get plugged up from carbon, or rust out from being heated up, they need to be replaced often. After brushing off the spark arrestor, use a household cleaning solution, such as a light detergent, to further clean the spark arrestor. Obiviously, it does not worth to start a big fire in the woods. I tried burning the carbon with a torch, but had minimal luck. Apart from these, if you are living in USA, you cannot remove it in woods and on Govt. Sign up for newsletter today. myimages[5]="../../../images/top-banner/cookie-mizer.jpg" 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. It may be tired, dirty, or maybe any of the problems that also happen to the machines. 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. Many, many years ago, I was excited to purchase my first blower, it was an echo. Dont even talk to people who cant purchase your product or serviceDave Thomas. I use premium ethanol free gas with stihl premium oil. Stihl Muffler Stub Spark Arrestor w/Screen fits BG55 BG56 BG85 BG86 Blowers. All parts that fit a BG 85 Blower . It depends on the open screen area vs muffler outlet size/placement. It need back pressure for performing correctly. 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. . Will crank of first pull without spark arrestor. on Chainsaws, Started by beenthere I opened up and matched the muffler base to the exhaust port since it was very slightly blocking the port on one side. 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. Register today and take advantage of membership benefits. This is the first thing to wear out on a muffler. Save my name, email, and website in this browser for the next time I comment. I removed the screen arrestor screen from my 372xp Husqvarna and twist the exhaust hole. Failure to maintain and clean a spark arrestor can result in spark plug fouling, increased exhaust temperatures, and engine malfunction. NEVER try to take a chance at that moment. Spark arrestors are devices that are fitted to the exhaust system to prevent hot particles of soot from being spewed into the atmosphere. Just waiting for my new catalog and I know they are expensive but was going to use the OEM dual ports from Bailey's. 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. Thanks Scott Fish I would personally prefer to have the screens myself. Page 7 Screw IS-DG5x24 Cylinder/crankcase Spark plug M14x1.25 Spark plug 15.0 20.0 Screw IS-M4x20 Ignition . Still should clean at least once a year, but your stove's performance will tell you when and if the chimney needs attention. on Chainsaws. Yes, it is a screw in plug on the muffler and it has a screen on the end. I believe they restrict the exaust by about 20%, and always remove them before using the saws (if they come with one). There was a thread a while ago about it. property needs them. The C in RC is for "Comfort", which means it's an easy start model. Over time, the spark arrestor can become clogged with soot. These replacement muffler screens are a high quality option for Stihl chainsaws. It struggles to move the yard's leaves. I keep mine just to keep the bugs and whatever else out. Continue with Recommended Cookies.