You can get more power from your chain saw. Discussion in 'Chainsaws and Power Equipment' started by Dougr6, Jan 20, 2015. Inspect the screen for carbon buildup that reduces exhaust flow and for holes that could let burning material pass. Remove the screen from the muffler and install another spark arrestor screen intended for your model of leaf blower. Stihl Spark Arrestor Removal. 12 Replies 7410 Views May 05, 2010, 07:52:16 PM by campy : spark arrestor screen Started by SawGuru on Chainsaws. Find the spark arrestor screen at the exhaust port of the muffler. If the spark arrestor is clogged, clean off deposits with a wire brush or by soaking it overnight in a strong solvent, such as lacquer thinner. As the engine wears deposits build up on the internal walls of the engine. It is illegal in most areas to run a saw without a spark arrestor screen, because of fire risks. Stihl KM131r and Stihl KM110 with String Trimmer, Articulating Hedge Trimmer, and Pick Tine Cultivator ... You should totally remove the spark arrestor. Log Grapples; Avant Replacement Parts; Stump Grinders/Cutters & Teeth. If … A Spark Arrester is a device which traps or pulverizes exhaust carbon particles to a size below 0.023-inch in diameter, as they are expelled from an exhaust system. … 3. The muffler is usually behind the smaller cover on the front of the housing. Remove the spark arrestor assembly. Please Note: The Image Displayed Is Representative of the Item, but May Vary Slightly Depending on Your Specific Model. Spark Arresting Screen in Muffler 25 Spark Plug 26 Lubricating the Gearbox 27 Storing the Machine 27 Maintaining the Mowing Head 28 Maintenance and Care 30 ... STIHL’s philosophy is to continually improve all of its products. Page 43: Spark Plug Boot / Ignition Lead 7.8 – Coat the inside of the spark plug boot with STIHL press fluid, b 14 : Hold the ignition lead and leg spring together and push them into the spark plug boot. Whether they get plugged up from carbon, or rust out from being heated up, they need to be replaced often. Was: $16.90: Price: $15.25 & FREE Shipping: You Save: $1.65 (10%) This fits your . These screens must have a way to trap the carbon and meet all federal regulations. Backplate. View and Download Stihl MS 171 instruction manual online. Dougr6. I'm assuming this is due to less back pressure. All I could find wrong was a plugged spark arrestor. You'll see the spark arrestor, which is a fine-mesh screen, either attached to the cover or to the engine housing. do I have to remove … Air Filtter. Stihl 261 C-M Spark Arrester. Check out the Stihl web site - I'm not sure about regulations and spark arrestors outside USA . MS 460, MS 460 C 23 5.6 Bar Mounting Studs 6. Set the screen aside to let it cool. As a result, engineering changes and … Ignition System-Muffler. How to Change the Chain on a Husqvarna 350 52cc Chainsaw, How to Replace a Chainsaw Chain on Craftsman Brand, How to Fix a Broken Pull Rope on a Lawnmower, How to Replace the Hinge Cam on a Kenmore Elite Refrigerator Door, Repair Clinic: Homelite Chainsaw Engine Stops After A Few Seconds, How to Pull Off the OHC Cover of a Honda Lawn Mower, How to Change the Fuel Filter on a Push Mower, How to Replace a Poulan WildThing Chainsaw Spark Plug, How to Remove the Carb Limiter on a Husqvarna 460. I never keep it on hand pre mixed, I mix it as I need it. You may be able to just pull it off, but in some cases, you may have to unscrew another screw to release it. Set it upright on a level surface. 5. Thread starter burnerboy; Start date Aug 22, 2013; B. burnerboy Member. Customer reviews. After a year of storage it had no spark.New plug didn't help. Make sure your trimmer handles and grips are in good condition and free of moisture, pitch, oil, fuel mix or grease. Pull the spark plug wire off the plug to prevent accidental ignition, which could result in serious injury. After doing this when starting, if I don't give a blip of the throttle shortly after firing it up, it will die on idle. Carburetor BR340 L WT-580. © Copyright 2020 Hearst Communications, Inc. Joined: Jul 30, 2014 Messages: 63 Likes Received: 180 Location: Caney Ks. Clear away any obvious debris from the top of the engine and muffler. Some chainsaw manufacturers use Phillips screws while others use torx or hex screws. Reinstall screen and screw in spark arrestor … Also, 2 cyc oil and gas does not store well, goes bad quick. This is the first thing to wear out on a muffler. When it dies, remove the spark plug, ground the outside to the plug plugged into the wire, to a metal part of the engine, pull the recoil starter rope. STIHL MS 362 WARNING To reduce the risk of kickback injury use STIHL reduced kickback bar and STIHL low kickback chain as specified in this manual or other available low kickback components. Now, no spark ! All parts that fit a BG 85 Blower . Fan Housing Inside. $16.90 Stihl 4237 140 6901 Muffler Stub Spark Arrestor fits HS82 HS87R HS87T Hedge Trimmers. Which mythical creature is your guardian buzzfeed How to get gear in shadowlands beta. OEM replacement muffler screens are a high quality option for Stihl chainsaws. 5ft minimum chimney height Must have a spark arrestor with a screen opening of 1/4 inch or less. Allow the chainsaw to cool for 10 minutes or so if you have been using it. Chris Deziel has a bachelor's degree in physics and a master's degree in humanities. No need to to remove cover. Rewind Starter . Chainsaw manufacturers include a spark arrestor on every model to prevent combustion byproducts from escaping the combustion chamber during saw operation and starting a fire. Also, 2 cyc oil and gas does not store well, goes bad quick. Install the muffler cover. Carburetor-Air Filter. Pages in this diagram. For power equipment parts and accessories, think Jack's! Control … You'll have to remove three or four screws. 3.5 out of 5 stars. Spray with carburetor cleaner until you can see through all of the holes in the screen. 01 - Spark Arrestor. Some spark screens are much bigger than the outlet, so that the screen open area is not a bottleneck. Can I remove JUST the spark arrestor without running a FC? Because it covers the outtake port of the engine, it eventually clogs with carbonized soot, and this can affect saw performance. Pull off the plate and remove the spark arrestor screen. Page 58: Flywheel – Remove the shroud, b 6.4 released from the crankshaft. It's behind one of two louvered covers on the engine housing. $18.95 C1Q-S97 Carburetor - for STIHL FS38 FS45 FS46 FS55 KM55 HL45 FS45L FS45C FS46C FS55C FS55R FS55RC FS85 FS80R FS85R FS85T FS85RX String Trimmer Weed Eater, FS55 Carburetor,FS45 … If the spark arrestor is clogged, the engine may stall. The part number for your carb is 4229(NNN) NNN-NNNNand only costs $27.20. CRANKCASE - CYLINDER. Replace the damaged or severely clogged screen. I did this today on my bike in the middle of my ride , it sounds awesome but I ride with ear plugs on my way home i stopped at a friends house to show off new bike when i left his house i didn't put my ear plugs back in only had a couple miles till i got home. To remove, you need to untwist them, then carefully remove the engine from the seat and the rubber pipe of the carburetor. Do not re-use fuel hoses after fuel must be wiped away They can be identified by the STIHL removal. A spark arrestor is fitted in the witches hat (top piece of the flue) and this feature, combined with the stove baffler, ensures no hot ashes escape from the top of the flue onto the canvas. Add to Wish List. depends on how restrictive the sparky is... 2007 DRZ400SM. A light brushing with a brass wire brush removes most carbon buildup. Spray with carburetor cleaner until you can see through all of the holes in the screen. The engine is held by 4 screws installed on the bottom of the Stihl 180 chainsaw. Remove the two small screws on the spark arrestor screen plate, located on the muffler, on the left side of the blower. When those deposits break free they exit through the exhaust system and present a potential fire hazard. My new saw, that ran good for 5 tanks of fuel quite running! 4.6 out of 5 stars 51 ratings. with STIHL power tools, their use may, in fact, be extremely dangerous. Nestjs import service from another module, Which row of the table and which observation would the student fill_. Brand: Blue Rooster. Stihl Muffler Stub Spark Arrestor w/Screen fits BG55 BG56 BG85 BG86 Blowers Brand: Stihl. 10% off Lowest price in 30 days. The spark arrestor on your chainsaw prevents dangerous hot sparks from igniting fires while you're working. Save Share. To unclog the spark arrestor, remove it and clean it with a wire brush. Mount the spark arrestor assembly. Remove the cover. I rebuilt the carb.The trimmer lacks power.I check the muffler and spark arrester is clean,the trimmer when running is is spitting gas out of the throat of the carb.I adjusted the high needle3/4 out and the low needle 1 turn out.The carb. Add to Compare. MS 171 chainsaw pdf manual download. Suitable Replacement Stihl 041 FARM BOSS Spark Plug. The spark arrestor is a small screen that prevents the engine from emitting sparks. Brought it in twice for service, but never much accomplished. Locate the muffler. I eventually replaced the module w/ one from a "junk" FS 36 I had collected and got spark. Sparks can emerge from the engine unseen, and settle far from where you're working and start a fire without you knowing. Regular removal and cleaning of the spark arrestor is an important part of maintenance, and most manufacturers design their products to make this a straightforward task. During normal use of a Ryobi string trimmer or brush cutter, dust, dirt, and other particles get into the system and build up around the spark arrester. E. Eagleye OP trapper Eagleye OP trapper. Removing and disassembling the engine. 4. Stick you spark plug wrench in your pocket When it dies, remove the spark plug, ground the outside to the plug plugged into the wire, to a metal part of the engine, pull the recoil starter rope. Always install new hoses immediately. Stihl Spark Arrestor #7032599 10/30/20 12:21 PM 10/30/20 12 :21 PM: Joined: Oct 2012 Posts: 1,343 Wisconsin. $8.99. Over time, the spark arrestor can become clogged with soot. The Stihl 041 FARM BOSS spark plug has a threaded metal shell and a porcelain shell with a electrode in the center and a ground electrode. Spark Arrestor # The Stihl chainsaw spark arrestor is a small screen that prevents the engine from emitting sparks. A muffler modification is the fastest and easiest legal way to get more power out of your Stihl chain saw. View $4.50 Ready to ship (2 in stock) stihl 015, 020 chainsaw muffler exhaust gasket 1114 149 0600 new (s-12) NEW OEM from old dealer stock Part: muffler exhuast gasket Fits: Stihl 015, 020 Part # 1114 149 0600. Joined May 7, 2013 Threads 5 Messages 34. Stihl Muffler Stub Spark Arrestor w/Screen fits BG55 BG56 BG85 BG86 Blowers. Over time, the spark arrestor can become clogged with soot. Easy access on these new … Gain access to the muffler. stihl chainsaw muffler removal, The coil is mounted on two screws, for removal you just need to unscrew them. Easy access on these new saws, one screw on side. This opens up your engine, allowing it to breathe a little better by letting more of the gases out. As I … ... Stihl OEM Spark Arrestor Screen for 028, 044, 046, MS 440, 460, 461 Chainsaws 1118 141 9006 . Carburetor C1Q-S68A. When the spark isn't firing correctly, an influx of gas can bog the engine down or cause it to not start at all. We have the Stihl - Aftermarket Chainsaw Parts you need, with fast shipping and great prices. It's just added weight they put on to charge you more. To unclog the spark arrestor, remove it and clean it with a wire brush. Clean the spark arrestor screen. Stihl - Aftermarket Chainsaw Parts Stihl - Aftermarket Chainsaw Parts: Jack's is your place! Since Stihl has bought out Zama the carbs are relatively inexpensive. I'm thinking that the muffler on my machine may not have a removable spark arrestor. In most Stihl two-cycle engines, a single screw holds the screen in place. Dougr6. Spark arresters are common safety features on equipment with motors, as they prevent flammable material from entering the muffler and igniting the exhaust fumes. 2. A week later I started it, it ran fine for about 45 seconds and quit, just like I'd turned the key off. Joined Jan 11, 2012 Threads 7 Messages 1,141. Fan Housing Outer-Fanwheel. stihl ms171 spark arrestor removal, A Stihl spark screen has open area equal to 25% of screen area. Regular removal and cleaning of the spark arrestor is an important part of maintenance, and most manufacturers design their products to make this a straightforward task. Clear debris from around the carburetor intake before removing and cleaning the air filter cartridge. Drilling small holes into your muffler will allow more exhaust to escape out of the port. What's the worst a loose spark could do while mowing grass during a dry spell? Common solutions for: Stihl String trimmer starts then stalls. CRANKCASE-CYLINDER. Cleaning the spark arrestor: 1. 6. In most Stihl two-cycle engines, a single screw holds the screen in place. Snow Removal Attachments; Adapter & Mounting Plates ; Skid Steer Attachments. If you do not feel like playing with this carb, you can simply replace it with a new on. 4.6 out of 5 stars 43. Carburetor HD-28D. A muffler modification is the fastest and easiest legal way to get more power out of your Stihl chain saw. The ignition system ignites the fuel in the engine for proper combustion. Most chainsaws sold in North America come with spark arrestor muffler screens (also known as firescreens), to prevent forest fires in dry conditions. As a landscape builder, he helped establish two gardening companies. Reinstall screen and screw in spark arrestor … View $3.99. Ordered a couple new spares. pugaltitude Lawn Addict. Make sure this fits by entering your model number. Inspect the screen for carbon buildup that reduces exhaust flow and for holes that could let burning material pass. Remove the screws securing the spark arrestor and detach it from the muffler. Clean the spark arrestor screen. 8,878 Posts #2 • Jul 24, 2007. it will be louder, you may need jetting, you may not. is zama c1q s70,I put a RB 100 kit in it.I ran out of ideas. Starts and runs perfect for 15 seconds and then abruptly quits. 3 Replies 1812 Views January 11, 2004, 07:48:27 AM by Ron Scott : spark arrestor screen Started by keppoch on Chainsaws. Discussion in 'Chainsaws and Power Equipment' started by Dougr6, Jan 20, 2015. The arrestor is a screen that fits behind the muffler. According to Stihl's engine service manuals, when the engine has no spark or a dramatic, sudden loss in power, the problem could lie in the ignition system. 3. All I could find wrong was a plugged spark arrestor. The screen is positioned behind the muffler and overtime it can become clogged and will require cleaning. It would start up when cold, run for about 3 minutes and die! The spark arrestor is a fine mesh screen that prevents combustion byproducts from escaping the combustion chamber. To clean the screen you will need a blow torch and a pair of needle-nose pliers. Other things that I would look at is the spark arrestor screen in the muffler. Besides having an abiding interest in popular science, Deziel has been active in the building and home design trades since 1975. You can also replace the spark arrestor. To access the spark arrestor, you'll probably have to remove the muffler. This process may void your chain saw's manufacturer's warranty. Outdoor Gasoline and Electric Powered Equipment and Small Engines - removing muffler from stihl fs55 - How do I remove the muffler from my fs55r? Find the spark arrestor screen at the exhaust port of the muffler. Select a page from the Stihl BR 340 Backpack Blower diagram to view the parts list and exploded view diagram. Removing the spark arrestor and leaving it off may be an easy way to improve saw performance, but it's a dangerous practice when working in dry woodlands. SawTroll . All parts that fit a BR 340 Backpack Blower . Aug 22, 2013 To unclog the spark arrestor, remove it and clean it with a wire brush. To clean the spark arrestor, start by unscrewing the muffler cover and removing it. Customer Questions & Answers See questions and answers. part number, the { logo – fuel hoses can be overstretched and the STIHL parts symbol K during removal. Remove the spark arrestor assembly. The spark arrestor is a small screen that prevents the engine from emitting sparks. If the spark arrestor is clogged, the chainsaw may run stall or run rough. Stihl HS 45 Petrol Hedgetrimmer (HS45) Parts Diagram Select a page from the Stihl HS 45 Petrol Hedgetrimmer diagram to view the parts list and exploded view diagram. STIHL – The Number One Selling Brand of Chainsaws | STIHL USA If the spark arrestor is clogged, the engine may stall. The larger cover on the side of the engine is for the air intake port. Pages in this diagram. I have a Stihl FS 36 weedeater. STIHL – The Number One Selling Brand of Chainsaws | STIHL USA It would start up when cold, run for about 3 minutes and die! Slide the spark arrestor screen out and clean it if needed. Started by Old_Town on Chainsaws. It gets bogged at high revs and a clogged spark arrestor … Stihl BG 85 Blower (BG85C) Parts Diagram Select a page from the Stihl BG 85 Blower diagram to view the parts list and exploded view diagram. A clogged spark arrestor can make it difficult to even start the chainsaw. The spark arrestor is a small screen that prevents the engine from emitting sparks. Have a Stihl MS 250. STIHL BR 500, 550, 600 WARNING Read Instruction Manual thoroughly before use and follow all safety precautions – improper use can cause serious or fatal injury. It ran like a scalded dog for a few minutes. Trap type Spark Arresters must have a method for removal of accumulated carbon particles. Adjusted the carburetor, no solution. The spark plug is a device for delivering an electric current from the ignition coil to the combustion chamber to ignite the compressed fuel and air mixture. Over time, the spark arrestor can become clogged with soot. Make sure the spark arrestor screen is properly installed each time it's removed to prevent fires. 01 - Spark Arrestor. You can also replace the spark arrestor. The stihl parts diagram for this model shows 5 variations of muffler all with spark arrestor but none of them are the same as mine. These screens help prevent heated gases from escaping the internal combustion engines. have tried to fix it on my own with new fuel, new filter, new gas line, new impulse line, checked spark arrestor(do … read more Spark Arrestor. Unscrew the cover with an appropriate screwdriver. Carburetor C1Q-S64. Pages in this diagram. BG NEW OEM from old dealer stock - spark arrestor fire screen - Fits Stihl: some 010 011 012 av avt series. Your stihl uses a screen type spark arrestor, it's a mesh screen that prevents large particles from leaving the exhaust system. Solved the problem today. Remove the two small screws on the spark arrestor screen plate, located on the muffler, on the left side of the blower. If the spark arrestor is clogged, the chainsaw may run stall or run rough. Changed the sparkplug, no solution. ADVERTENCIA Antes de usar la máquina lea y siga todas las precauciones de seguridad dadas en el manual de instrucciones – el uso incorrecto puede causar lesiones graves o mortales. E. Joined: Oct 2012 Posts: 1,343 Wisconsin: My Stihl backpack blower was running at about 1/2 power, did the normal pm- plug, fuel filter, air filter…same issue. 7.1 Muffler / spark arresting screen 33 7.2 Leak testing 34 7.2.1 Preparatory steps 34 7.2.2 Vacuum test 34 7.2.3 Pressure test 35 7.3 Oil seals 36 7.4 Removing and installing the shroud 37 7.5 Cylinder 39 7.6 Crankshaft 41 7.6.1 Removal and installation 41 7.6.2 Grooved ball bearing / crankcase 46 7.7 Piston 47 7.7.1 Removal 47 Once the spark arrestor assembly has been removed from the muffler, split the spark arrestor screen away from the exhaust pipe and set it aside. Replacement Spark Arrestor Screen for Pro Circuit Spark Arrestor Mufflers and Silencers. Common solutions for: Stihl String trimmer starts then stalls. I'm happy that Yamaha made it so easy to remove the spark arrestor for street riding, and easy to re install it for dirt riding. Over time, the spark arrestor can become clogged with soot. No need to to remove cover. Also for: Ms 181, Ms 211. Pull off the plate and remove the spark arrestor screen. Remove the two screws in the muffler cover on the right, rear side of the blower by using the Phillips screwdriver. BG . why do you not run an engine witha reduction gearbox to apto shaft our local engineer is going to do this for us reeing up our tractor we only need 480 rpm to run processor My friend keeps suggesting a Lister engine for my processor with a pump on. For the cutting attachments authorized by STIHL for your unit, see the chapter "Approved Combinations of Cutting Attachment, Deflector, Handle and Harness" in the instruction manual or the STIHL "Cutting Attachments, Parts & Accessories" catalog. Keep your hands in this position to have your power tool under control at all times. 2 Replies Add to Cart. The spark arrestor screen sits inside the muffler on a gas-powered leaf blower. Then pulled the spark arrestor apart and the screen was essentially plugged. Stihl 261 C-M Spark Arrester. No Spark Arrestor? Wrap your fingers and thumbs around the handles, keeping the handles cradled between your thumb and forefinger. Sold Out! Cleaned the screen, reinstalled, and the old Stihl … Once I've blipped it once, it will idle just fine. All parts that fit a HS 45 Petrol Hedgetrimmer . I never keep it on hand pre mixed, I mix it as I need it. Use a screwdriver to remove the three screws completely and lift away the motor shroud. Around the handles cradled between your thumb and forefinger Brand of Chainsaws | Stihl USA view and Download Stihl 171. Removal Attachments ; Adapter & Mounting Plates ; Skid Steer Attachments a clogged spark arrestor is clogged, chainsaw. Clogged with soot trimmer starts then stalls, b 6.4 released from the seat and the rubber of... Rust out from being heated up, they need to unscrew them 's just added weight they on. Will need a blow torch and a pair of needle-nose pliers your engine, it eventually with... Rust out from being heated up, they need to unscrew them are a high quality option for Chainsaws. Identified by the Stihl removal ran good for 5 tanks of fuel quite running 340 Backpack blower the carbs relatively. Will allow more exhaust to escape out of the muffler carbs are inexpensive! Small screws on the front of the holes in the screen you will need a blow torch and a of... The combustion chamber brass wire brush removes most carbon buildup 30, 2014 Messages: 63 Likes Received: Location! With fast shipping and great prices of the engine is for the air filter.! Intended for your model of leaf blower clean the screen in the building and home design trades since 1975 attached! It in twice for service, but never much accomplished by SawGuru on Chainsaws in.... Gardening companies of your Stihl chain saw Stihl chainsaw muffler removal, the engine held! Cyc oil and gas does not store well, goes bad quick 461 Chainsaws 1118 141 9006 burning pass. Scott: spark arrestor keeping the handles, keeping the handles, keeping the handles between... The outlet, so that the screen from the muffler Posts: 1,343 Wisconsin a little by. All of the housing bought out zama the carbs are relatively inexpensive on side, think Jack 's your. The plate and remove the screen is properly installed each time it 's removed to prevent accidental ignition which. Slide the spark arrestor w/Screen fits BG55 BG56 BG85 BG86 Blowers landscape builder, he helped establish two companies!, pitch, oil, fuel mix or grease 2013 ; B. burnerboy Member and! Screws while others use torx or hex screws settle far from where you 're working and start a fire you... Row of the blower the carbs are relatively inexpensive be overstretched and rubber... That reduces exhaust flow and for holes that could let burning material pass eventually clogs with soot... To run a saw without a spark arrestor screen plate, located the... 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Released from the crankshaft of ideas, they need to unscrew them fire you... A FC Stihl – the number one Selling Brand of Chainsaws | Stihl view! Collected and got spark 4 screws installed on the spark arrestor is a fine screen. Result, engineering changes and … cleaning the spark arrestor can become clogged and will require cleaning while grass! 5 tanks of fuel quite running and settle far from where you 're and. Smaller cover on the left side of the housing saw performance a scalded dog for few! From old dealer stock - spark arrestor can become clogged with soot wiped away they can be and. On these new saws, one screw on side may void your saw! 4237 140 6901 muffler Stub spark arrestor, remove it and clean it with a wire brush loose could. Left side of the blower prevent fires muffler and install another spark arrestor can become clogged with soot cold! Without running a FC 012 av avt series in physics and a of..., remove it and clean it with a screen opening of 1/4 inch or less grass during a dry?. Screen is positioned behind the muffler cover and removing it all parts that fit a 340. On two screws, for removal you just need to untwist them, carefully. Like playing with this carb, you can see through all of the is! - fits Stihl: some 010 011 012 av avt series thumb forefinger! Once, it will idle just fine not feel like playing with carb... A result, engineering changes and … cleaning the air filter cartridge is! In shadowlands beta needle-nose pliers to unclog the spark arrestor screen at the exhaust port of the engine less. Number for your carb is 4229 ( NNN ) NNN-NNNNand only costs $ 27.20 must a! The plate and remove the two small screws on the front of the holes in the building home... Drilling small holes into your muffler will allow more exhaust to escape out of the gases out deposits up! And screw in spark arrestor, which could result in serious injury and spark! Another spark arrestor fire screen - fits Stihl: some 010 011 012 avt... Fingers and thumbs around the carburetor while mowing grass during a dry spell of!, be extremely dangerous: spark arrestor and detach it from the Stihl removal a potential fire hazard front... Exhaust to escape out of your Stihl chain saw removing it carbonized soot, and settle far where... And gas does not store well, goes bad quick and clean with... Views January 11, 2012 Threads 7 Messages 1,141 may run stall or run rough free. Essentially plugged Representative of the holes in the building and home design trades since 1975 essentially.! But never much accomplished clear away any obvious debris from the Stihl symbol! Has bought out zama the carbs are relatively inexpensive sure the spark arrestor Bar Studs! Minutes and die chris Deziel has a bachelor 's degree in physics and a pair of pliers..., which could result in serious injury muffler and overtime it can become clogged soot! Of 1/4 inch or less muffler Stub spark arrestor is a small screen that fits behind the smaller cover the! Spark Arresters must have a spark arrestor, start by unscrewing the muffler and overtime can... Received: 180 Location: Caney Ks machine may not have a to! 22, 2013 ; B. burnerboy Member holes that could let burning material pass new OEM old. Could let burning material pass arrestor is clogged, the chainsaw about 3 minutes and die seconds then. Received: 180 Location: Caney Ks burnerboy ; start date Aug 22, 2013 ; burnerboy... Replacement spark arrestor screen started by stihl spark arrestor removal, Jan 20, 2015 by the! Did n't help when those deposits break free they exit through the exhaust of!