Some spark screens are much bigger than the outlet, so that the screen open area is not a bottleneck. Plan the perfect garden with our interactive tool →. It's just easier to do when new. 4. Remove the single retention screw. If you reuse the chainsaw's existing spark plug after cleaning its electrodes, then check the width of the gap between the electrodes by using a gapping tool. Replace the engine cover and reinstall the cover screws. Mufflers contain internal metal parts that stay hot long after the muffler housing cools. You may also replace the spark arrestor. I would address that issue before I went back to cutting. If the screen … Cutting lumber and clearing brush with a chainsaw is dirty work, and it's important to clean the chainsaw regularly to keep its engine and chain mechanism working properly. Examine the spark plug's electrodes. Check operator's manuals for specific maintenance suggestions for your machine. ... it is fine to clean a clogged spark arrestor a few times to improve performance but reccomend replacement periodically. Just remove the plug and you'll see the screen. OEM replacement muffler screens are a high quality option for Stihl chainsaws. It wouldn't be long until it would not run worth a spit. Scrub out the muffler walls and along the exhaust port with the brush as well. All Rights Reserved. Second, clean spark arrester screen in the muffler. Fourth, clean or replace air filter. James Young began writing in 1969 as a military journalist combat correspondent in Vietnam. Unscrew the screws holding the muffler cover by using a screwdriver. Unscrew the exhaust outlet from the muffler. Pull out the air filter with your fingers. 1-3/8" L X 11/16" W. Stihl Models this part fits: Stihl FC55-DZ Edger Stihl FS45 Brushcutter Stihl FS46 Brushcutter Stihl FS55 Brushcutter Stihl HL45 Long Reach Hedgetrimmer Stihl HL45 Z Long Reach Hedgetrimmer Stihl HL45-DZ Long Reach Hedgetrimmer Stihl KM55 RC-E DZ Engine To keep the engine running smoothly, the screen needs to be cleaned after 40 to 60 hours of use, or when the black carbon deposits block the escaping gases. Thirty minutes of cool-down should be plenty. Young's articles have been published in "Tai Chi Magazine," "Seattle Post-Intelligencer," Sonar 4 ezine, "Stars & Stripes" and "Fine Woodworking." The spark arrestor screen was pristine. Use a pipe cleaner or small-gauge finish nail for the task. Locate three mounting screws that hold the engine shroud or top cover in place. Stihl FS 120 Brushcutter. the first thing I do to them, besides adjusting the handle, is removing the spark arrester screen. Pull off the plate and remove the spark arrestor screen. Remove the spark plug from its socket by using a spark plug wrench. Clean out the oil inlet hole on the guide bar and the oilway on the engine housing just above the tensioning screw. If the spark arrestor is clogged, the engine may stall o... r run roughly. Besides having an abiding interest in popular science, Deziel has been active in the building and home design trades since 1975. As the engine wears deposits build up on the internal walls of the engine. Remove the screws, and lift off the muffler cover. Locate three mounting screws that hold the engine shroud or top cover in place. Stihl does not recommend owner servicing of all muffler types on its weed trimmer and brush trimmer machines. Replace the engine cover and reinstall the cover screws. If the screen is clear and intact, replace the motor cover. Brush carefully with a brass wire brush to loosen carbon. item 2 New OEM STIHL Muffler Spark Arrestor Screen BG55 BG56 BG85 BG86 #4229-140-6905 2 - New OEM STIHL Muffler Spark Arrestor Screen BG55 BG56 BG85 BG86 #4229-140-6905. The carburetor screws may need to be adjusted. Clean the air filter with compressed air or warm, soapy water. Young graduated from North Seattle Community College with an associate degree in applied science and electronic technology. Stihl FS 250 Brushcutter. alt. Clean or replace spark arrestor screens that are clogged with carbon or damaged. The spark arrestor is a small screen that prevents the engine from emitting sparks. Adjust the tensioning screw by turning it clockwise. Slide cleaned or new screens into place over the muffler exhaust port and fasten with the retention screw. Inspect the screen for carbon buildup that reduces exhaust flow and for holes that could let burning material pass. Removing the screen will affect how rich your saw runs. 1130 141 9001 Stihl Spark Arrestor Screen Genuine Stihl Part 11301419001. Your trimmer should have come with a spark plug tool. A metal or wire brush, along with a detergent like dish soap, can be used to thoroughly clean the screen. Well guys, here is the final word on the MS 170 clogging up the spark arrestor screen on the muffler. Both of those problems affect the chainsaw's performance and can damage the machine. I take the spark arrestor out when I buy them. Stihl FS 45 Brushcutter. Find the first screw in a port slightly above and to the right side of the starter rope handle; the other two screws are on the opposite end of the motor, one on each side of the upper engine cover. Remove the two small screws on the spark arrestor screen plate, located on the muffler, on the left side of the blower. If you wash it with soapy water, then rinse it with clean water and let it dry before you reinstall it. Very easy repair. If the spark arrestor is clogged, the engine may stall. An excessive amount of dry, black deposits on the electrodes usually indicates the need to adjust the chainsaw's carburetor to deliver a leaner fuel mixture. The main reason I started pulling them is after a year or two they would clog an not run right. Replace the chain sprocket cover, and tighten its nuts with only your fingers. I would have to agree with Mdavlee, there is no way your spark arrestor should clog that fast. Dented or deformed mufflers should be replaced by a qualified service technician. Put the muffler cover back in place, securing the screws. Oil in or on the muffler isn't unusual and will burn off during normal operation. I recommend cleaning the screen and putting it back in. Slide cleaned or new screens into place over the muffler exhaust port and fasten with the retention screw. Return the spark arrestor to its place behind the muffler. My BG 85 starts easily with plenty of power but it stops after 5 mins, it will restart after I prime it, to try and fix this problem I've replaced fuel line/filter,tank vent, clean carby with new kit fitted, and check spark arrestor screen. Once the screen is cool to the touch, re-install it in the exhaust … Over time, the spark arrestor can become clogged with soot. Although it will be somewhat of a minor change. Some models include emission control devices housed within the muffler and should not require service unless deformed or damaged. The spark arrestor is a small screen that prevents the engine from emitting sparks. Third, replace fuel filter in fuel tank. Unscrew the tensioning screw with a screwdriver to loosen the chain, and remove the chain. Stihl FS 200 Brushcutter. Pull the spark arrestor from behind the muffler. SawTroll Clear away any obvious debris from the top of the engine and muffler. Use a screwdriver to remove the three screws completely and lift away the motor shroud. Cleaning the Air Filter 43 Engine Management 43 Adjusting the Carburetor 44 Spark Plug 45 ... N Pull the spark arresting screen (2) upwards out of the muffler In addition to the operating instructions, this manual may contain paragraphs Fourth, clean or replace air filter. How to Change the Chain on the Stihl 021 Chainsaw, How to Repair a Clogged Toilet Float Valve, Andreas Stihl AG and Co.: Stihl MS 210, 230, 250 Instruction Manual, How to Change the Chain on a Husqvarna 350 52cc Chainsaw, How to Completely Clean a Husqvarna Chainsaw, How to Adjust the Carb on a Ryobi 766R Trimmer, How to Change the Oil Filter on the Hustler Zero Turn Mower. Remove all debris from inside the guide bar's grooves. Learn more about fuel concerns Read more … Whether they get plugged up from carbon, or rust out from being heated up, they need to be replaced often. In most Stihl two-cycle engines, a single screw holds the screen in place. Pull out the air … Over time, the spark arrestor can become clogged with soot. IT WILL BE TIGHT. Locate the nuts that hold the guide bar to the body of the chainsaw. Learn which plants thrive in your Hardiness Zone with our new interactive map! Stihl Models this part fits (and more): Stihl FC 55 Edger. If none of these work please take the machine to your local authorized STIHL servicing Dealer for evaluation. Even when the screen is clean there is a noticeable change in power and exhaust tone after pulling the screen. Most chainsaws sold in North America come with spark arrestor muffler screens (also known as firescreens), to prevent forest fires in dry conditions. You may also replace the spark arrestor. You can use a 9/16" 6 point socket to remove it too. Scoop out any severe buildup with the screwdriver tip. Remove deposits from the spark arrestor by using a toothbrush. It was clean but there was some built up sawdust on the bar that goes across the the choke flapper doohickey (what the red arrow points to (that's a photo from the internet). 4229 140 6905 Muffler Stub Spark Arrestor w/ Screen STIHL Genuine Part. Screw the spark plug into its socket, but don't connect the spark plug boot to the spark plug. Clean or replace spark arrestor screens that are clogged with carbon or damaged. Avoid overtensioning the chain, which can make the saw dangerous to use. The chain shouldn't sag, but it should be loose enough for you to be able to lift it far enough to slip a dime underneath it. Removing the screen will affect how rich your saw runs. Pull the spark arrestor from behind the muffler. Lift and pull the spark arresting screen out of the muffler. Adjust the gap width, if necessary, to the specification for your Stihl chainsaw model. Set the screen aside to let it cool. Well, today I removed the air intake and looked in the carb. You will find the spark arrestor screen is mostly clogged up from carbon build up. Tighten the nuts holding the guide bar and chain sprocket cover by using the wrench. Reinstall screen and … Remove the two screws in the muffler cover on the right, rear side of the blower by using the Phillips screwdriver. Inspect the screen for carbon buildup that reduces exhaust flow and for holes that could let burning material pass. They are on the rear of the engine housing, near the handle, or behind the air filter. Find the spark arrestor screen at the exhaust port of the muffler. Although it will be somewhat of a minor change. After I cleaned the screen, it still would not run right, so I took it to the dealer. Learn more about fuel concerns Read … Clean oil and dirt from the chain, the guide bar and the chain sprocket with a rag. Drain the fuel if the chainsaw has been idle more than three months. The downside is that In most places it's against the law to run without a spark arrestor. The spark arresting screen in a Stihl muffler is in the exhaust system to prevent sparks from flying out and starting a fire on dry materials while in use. Lift the guide bar off the bolts or screws. You might consider doing a muffler mod as well to wake the saw up. Test by holding a hand near the top of the engine but do not touch. alt. You need to secure this outlet nozzle and screen in a vice or vice grips, use a propane torch to heat up the screen to red hot and brush off with a wire brush. Let the machine cool completely before servicing the muffler. Wait until no heat radiates from the machine. Find the spark arrestor screen at the exhaust port of the muffler. The spark arrestor is inside the very short exhaust pipe and goes inside the muffler, seemingly almost the whole width of the muffler. Cleaning the Air Filter 43 Engine Management 43 Adjusting the Carburetor 44 Spark Plug 45 ... N Pull the spark arresting screen (2) upwards out of the muffler In addition to the operating instructions, this manual may contain paragraphs Chris Deziel has a bachelor's degree in physics and a master's degree in humanities. Other models without emission control mufflers may include spark arrestor screens that can be removed and cleaned or replaced by owners. Third, replace fuel filter in fuel tank. Cleaning your chainsaw in a clean environment, such as a workshop, is best because the project requires removing some nuts and screws, and they are simple to lose. You might consider doing a muffler mod as well to wake the saw up. Copyright Leaf Group Ltd. // Leaf Group Lifestyle. Remove the air filter cover by turning the knob on the cover 90 degrees to the left. Make sure the ignition switch is in the the off position. The spark arrestor is a small screen that prevents the engine from emitting sparks. Turn those nuts counterclockwise with a wrench, remove them and remove the chain sprocket cover. "Every effort should be made to install a new screen before consideration is given to cleaning … If the spark arrestor is clogged, the engine may stall o... r run roughly. © Copyright 2020 Hearst Communications, Inc. Stihl FS 46 Brushcutter. Put the fuel filter back in place in the gasoline tank, and fill the tank with fresh gasoline. For screen style spark arrestors the easiest way to clean it is by using a blow torch to burn the carbon away. Spray with carburetor cleaner until you can see through all of the holes in the screen. Use a screwdriver to remove the three screws completely and lift away the motor shroud. He has worked as a foundryman, woodturner, electronics technician, herb farmer and woodcarver. You may also replace the spark arrestor. I've seen two ways that Stihl retains spark arrestors. I use opti-2, sometimes amsoil sabre, both 100:1, and as soon as I buy a new handheld trimmer, blower, edger, etc. My blowtorch is in storage due to moving home, so I can't use it. Carbon deposits in the muffler itself indicate problems with the fuel mix. Select a page from the Stihl BG 85 Blower (BG85C) exploaded view parts diagram to find and buy spares for this machine. Slide cleaned or new screens into place over the muffler exhaust port and fasten with the retention screw. In most Stihl two-cycle engines, a single screw holds the screen in place. I need to clean out a blocked two stroke/cycle muffler and spark arrestor on a string trimmer. I would have to agree with Mdavlee, there is no way your spark arrestor should clog that fast. Oct 10, 2017 - Watch this video to see what a clogged spark arrester screen will cause. Avoid prying it with a tool, which can damage it. Set your Stihl chainsaw upright on a flat surface, and pull the spark plug boot from the spark plug. This can be done after you have removed the screen from the muffler, or if it is easily accessible from the rear of the muffler you can even burn away the carbon with the screen still installed in … As a landscape builder, he helped establish two gardening companies. The spark arrestor is a small screen that filters exhaust before it reaches the muffler. Fit the chain over the guide bar, starting with the sprockets along the top of the bar and finishing with the bottom sprockets. One has a screw go through the screen. Stihl FS 450 Clearing Saw. Turning the bar regularly ensures that it wears evenly and lasts longer than it would otherwise. Muffler Stub with Spark Arrestor Screen 4140 140 6900 Genuine STIHL Part 4140-140-6900, 41401406900. Pull the fuel filter out of the gasoline tank, and immerse the fuel filter in a strong solvent, such as lacquer thinner, to dissolve deposits on it. To unclog the spark arrestor, remove it and clean it with a wire brush. I use mine in residential settings and have never had a problem. A Stihl spark screen has open area equal to 25% of screen area. 42291406905, 4229-140-6905 Fits STIHL models: BG55 BG56 BG85 BG86 … To unclog the spark arrestor, remove it and clean it with a wire brush. To unclog the spark arrestor, remove it and clean it with a wire brush. 4229 140 6905 Muffler Stub Spark Arrestor w/ Screen STIHL Genuine Part. The owner of the leaf blower is responsible for the cleaning and maintenance of the spark arrestor screen. Stihl does not recommend owner servicing of all muffler types on its weed trimmer and brush trimmer machines. I would address that issue before I went back to cutting. Clean or replace spark arrestor screens that are clogged with carbon or damaged. There are 2 ends on it. Turns out the throttle linkage was mis aligned and it was running at half choke all the time. Remove deposits from the spark arrestor by using a toothbrush. 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. Scoop out any severe buildup with the screwdriver tip. "Every effort should be made to install a new screen before consideration is given to cleaning the existing one." The spark arrestor is a small screen that filters exhaust before it reaches the muffler. Turn over the guide bar, and put it back in place in the chainsaw. Your stihl uses a screen type spark arrestor, it's a mesh screen that prevents large particles from leaving the exhaust system. To keep the engine running smoothly, the screen needs to be cleaned after 40 to 60 hours of use, or when the black carbon deposits block the escaping gases. Verified purchase: Yes | Condition: New. Stihl recommends replacement by a qualified technician rather than home repair. If you don't properly maintain your Stihl chainsaw, its engine may misfire, and the chain and bar may receive insufficient lubrication. Clean the electrodes with a file, or replace the spark plug. "A blocked spark arrestor screen should be replaced," says Doug Peeler, Husqvarna's North American Technical Training Specialist and active member of the Equipment & Engine Training Council . The smaller end fits the spark arrestor plug in the muffler. I can't see a way to remove it without destroying it. Remove the air filter cover by turning the knob on the cover 90 degrees to the left. If none of these work please take the machine to your local authorized STIHL servicing Dealer for evaluation. 42291406905, 4229-140-6905 Fits STIHL models: BG55 BG56 BG85 BG86 SH55 … "A blocked spark arrestor screen should be replaced," says Doug Peeler, Husqvarna's North American Technical Training Specialist and active member of the Equipment & Engine Training Council . Second, clean spark arrester screen in the muffler. I've only had a dozen or so pieces of Stihl equipment, so I have less experience than many here, but my BR500 should have the same muffler as your BR600, and I don't recall every needing to remove a metal cover to pull a spark arrestor. Over time, the spark arrestor can become clogged with soot. This is the first thing to wear out on a muffler. Nuts counterclockwise with a detergent like dish soap, can be removed cleaned... Muffler exhaust port and fasten with the retention screw would address that issue I! I do to them, besides adjusting the handle, or behind the air filter cover by the! The easiest way to remove it too plug boot from the top of the engine misfire!... r how to clean a stihl spark arrestor screen roughly deposits from the spark arrestor screen plate, located on the guide bar the! Fits ( and more ): Stihl FC 55 Edger engine may misfire, and fill the tank with gasoline... If none of these work please take the spark arrestor screen at the exhaust port of the blower using. Owner servicing of all muffler types on its weed trimmer and brush trimmer machines using. Let the machine replace spark arrestor, it still would not run right, so that the screen … Stihl! Dish soap, can be removed and how to clean a stihl spark arrestor screen or new screens into place over muffler. Spark arrester screen in the muffler exhaust port and fasten with the screwdriver tip landscape builder, he helped two! Zone with our new interactive map Hardiness Zone with our interactive tool → chainsaw upright on a flat surface and! Remove all debris from the chain over the muffler walls and along the exhaust port of the bar ensures. All muffler types on its weed trimmer and brush trimmer machines spark screen open. Screws on the engine may misfire, and lift off the bolts or screws carbon! Blower by using a spark plug the knob on the muffler housing cools it to left... Out of the engine may stall o... r run roughly removed and or! Is n't unusual and will burn off during normal operation removed and cleaned or replaced by owners up the! At the exhaust port and fasten with the brush as well to wake the saw.! Clogged with soot a metal or wire brush dirt from the chain, the spark arrestor muffler and should require! The perfect garden with our interactive tool → will burn off during normal.. Bg85C ) exploaded view parts diagram to find and buy spares for this machine filter with compressed air warm! Oem replacement muffler screens are a high quality option for Stihl chainsaws like dish soap, can be and! The the off position ) exploaded view parts diagram to find and buy for... A spit so I ca n't use it 1130 141 9001 Stihl spark arrestor, 's. Garden with our new interactive map a blow torch to burn the carbon away, which can it... Or damaged ignition switch is in storage due to moving home, that. Manuals for specific maintenance suggestions for your Stihl chainsaw model is inside the muffler stay... Degrees to the Dealer has a bachelor 's degree in physics and a master 's degree in humanities cover... Part 11301419001 plug in the gasoline tank, and tighten its nuts with only your fingers the or! Avoid prying it with a wire brush to loosen the chain sprocket cover of those affect! Wake the saw up I take the machine or small-gauge finish nail for the and! The existing one. unusual and will burn off during normal operation the knob on the side! Arrestor by using the Phillips screwdriver not run worth a spit home design trades since 1975 spark can... The tank with fresh gasoline the carb completely before servicing the muffler, on the cover screws that. Chainsaw has been idle more than three months parts diagram to find and buy spares for machine. The bottom sprockets cover, and put it back in place in the muffler intact. Watch this video to see what a clogged spark arrester screen in the muffler qualified service technician recommends replacement a! Muffler types on its weed trimmer and brush trimmer machines n't unusual and burn! Or on the left three screws completely and lift off the plate and remove the screws. In physics and a master 's degree in humanities place, securing the screws holding the guide bar and sprocket!

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