I use Amsoil Saber syn in all small engines. You can also consider carbon buildup or Muffler mods. 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. This video shows how to fix a clogged spark arrestor screen on a small 2 cycle engine. What are the 3 things you should always ask a patient before surgery? A chimney cap is a metal covering that fits onto the top of a chimney to keep animals and debris from entering the chimney, while a spark arrestor is an additional device that is used to prevent sparks and embers created by the burning fire from leaving the chimney and catching fire on nearby structures. The climate is not in favor of fire. Re: Spark Arrester Screen in Stihl MS361. Required Part My Stihl backpack blower was running at about 1/2 power, did the normal pm- plug, fuel filter, air filtersame issue. imagelinks2[1]="https://www.youtube.com/c/TheForestryForum?sub_confirmation=1"
on Chainsaws, Started by keppoch If you suspect that the spark arrestor is clogged, it is important to have it serviced as soon as possible in order to avoid any potential problems. Senior Member x2; Posts: 12728; . My name is Chris Ross. I opened up the interior baffle holes slightly and added a couple more small holes. It just always starts on first pull with the arrestor out. Spray with carburetor cleaner until you can see through all of the holes in the screen. In this case, you can consider doing the muff mod. Make sure it is safe the climate and woods are not fire-friendly. I believe so. Finally, codes may require a spark arrestor for specific sizes and shapes of chimneys. Simplified Starting Procedure Third, replace fuel filter in fuel tank. I have heard that you remove the spark arrestor your Stihl weedeater will start easier. 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. If the saw sounds good after removal the only thing would be to watch the spark plug right? :laughing: Did NOT know that. Yes, cleaning a spark arrestor with carb cleaner is a quick and easy way to clean the unit without having to take it apart. Page 15: Fueling (about a quarter turn). JavaScript seems to be disabled in your browser. var imagelinks2=new Array()
It won't fire up the engine. Crankcase-Cylinder. Restart. Both chimney caps and spark arrestors are important components of fire safety and should be used together to ensure the maximum level of safety. This item: Stihl 4244 140 8100 Muffler Spark Arrestor Screen fits BR350 BR430 BR450 SR430 SR450. ry=1
In short, if the USFS(United States Forest Service) find you, they would cite you. In a normal climate such as in-home or garden, without much humidity, there is almost no chance of starting a fire. In loving memory of Kenis D. Keathley 6/4/81 - 3/27/22 Loving father, husband, brother, friend and firewood hoarder Rest in peace, Dexterday. Reinstall the spark arrestor onto the engine and reattach the spark plug lead wire. Posted via Mobile Device B bullofthenorthwood Registered Joined Dec 10, 2011 20 Posts 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. - Remove the inner handle The bent leg of the torsion spring molding from the drive tube. It may not display this or other websites correctly. If your chainsaw has a dual-port muffler, removing spark arrestor may not increase the power by huge degree. Feb 28, 2012. 5+ Ways To Woods Port A Chainsaw For Power Gain (Up to 25%). This muffler cover is constructed out of stainless steel and hand TIG welded with 1 year warranty & made in the USA. Once you start removing screens it becomes the normal and you will end up forgetting your saws do not have screens. Expert operators can experience the differences easily. Look at the diagram and find parts that fit a Stihl BG 85 Blower, or refer to the list below.
I keep mine just to keep the bugs and whatever else out. Id say if your saw is tuned right and you use synth. Updated: 00/04/25
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Return it back after cleaning. If you think the exhaust flow is restricted too much for the spark arrestor, you can remove it. You will . oil you really shouldnt have a problem with the screen. while reducing the risks to almost 70%-80%. If it turning white might have to richen it up due to more air flow now correct? 2. Mar 8, 2015. Not hard to do. the first thing I do to them, besides adjusting the handle, is removing the spark arrester screen. Its killing me at work using a broom! .RDMJ2.470.V.AFINACION. You should be able to unscrew it and clean it with a torch/lighter or just remove it all together. 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 may also replace the spark arrestor. myimages2[2]="../../../images/top-banner/behindtheforum.jpg"
In Stock. 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. . If the humidity is high and dry, there is a high chance of fire.
Then pulled the spark arrestor apart and the screen was essentially plugged. Posts: 18,002. Thread starter Beer Gut; Start date Nov 20, 2011; Help Support Arborist Forum: Beer Gut A Fine Pilsner. A gas chainsaw can deliver more power and better performance than it is designed for. It bogs out & stall when the throttle is opened. Additionally, spark arrestors may also be required in certain climates and for certain types of fuel, such as wood or coal. Before using the carb cleaner, make sure to wear protective gear, such as gloves and safety glasses, due to the fact that the ingredients in the carb cleaner can be dangerous. It now somewhat resembles one of the Stihl dual port mufflers. Register today and take advantage of membership benefits. 1 I have a Stihl chainsaw MS 181 CB-E part number 1139-011-3012 and need to remove the muffler to check the spark arrestor. Question: Besides adding to the worlds c. You can find them on local hardware store. Less than one year old. Apart from these, if you are living in USA, you cannot remove it in woods and on Govt. All parts that fit a BG 85 Blower . I'm an arborist by profession & a blogger by passion. Time is money and by increasing the power, you can cut more in less time. The Fora platform includes forum software by XenForo. if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[320,50],'remodelormove_com-box-3','ezslot_4',173,'0','0'])};__ez_fad_position('div-gpt-ad-remodelormove_com-box-3-0');if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[320,50],'remodelormove_com-box-3','ezslot_5',173,'0','1'])};__ez_fad_position('div-gpt-ad-remodelormove_com-box-3-0_1');.box-3-multi-173{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}The spark arrestor on a Stihl chainsaw is typically located on the muffler near the exhaust port. Don't forget the spark arrester screen is also a filter to keep stuff out of your engine. Chainsaw help please! The effect on exhaust flow is from 0 to 40%. To fix this issue, you need to reach that flywheel key position and remove the flywheel. 4. Other factors that may increase the cost include the cost of components, installation labor, and any additional kits required for installation. You can modify the gas saw for more horsepower for demanding tasks. Login with username, password and session length. Get Fast, Free Shipping with Amazon Prime FREE Returns. that maximizes the output while minimizing the risks. imagelinks2[2]="https://www.youtube.com/c/TheForestryForum?sub_confirmation=1"
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). View and Download Stihl FC 75 service manual online. The US forest service will fine you if they can catch you. For most homeowners, I dont think it worth to take the risks. 2022 LawnMowerForum.com. If you think it's clogged, I think it has a removable piece at the outlet that just unscrews so that you can clean the spark arrestor screen (the part that clogs). //-->. /*
Without the arrestors, you can experience bugs and mud dobbers living inside your saw engine when you keep them in storage. exhaust was pointing straight down and caught the fine sawdust on fire. It depends on the open screen area vs muffler outlet size/placement. The spark arrestor also works to prevent bugs from getting into the engine. If the spark arrestor is clogged, the engine may stall. Many dampers are able to be opened and closed manually, while some are motorized and can be opened and closed with a switch or remote control. Similarly, if you work in a fire zone like the piney wood hills, you must not remove spark arrestors. Still should clean at least once a year, but your stove's performance will tell you when and if the chimney needs attention. Whether they get plugged up from carbon, or rust out from being heated up, they need to be replaced often. #6. First, you have to make sure about the location of the spark arrestor. Even when the screen is clean there is a noticeable change in power and exhaust tone after pulling the screen. Tip: Most of the saws, repair shops get in for service just have a clogged screen. 4149 141 9001 STIHL Spark Arrestor Screen fits FS94 HL91 HL94 KM94 OEM Genuine Stihl Part 4149-141-9001. Carburetor C1Q-S68A. I now experience the Horsepower is increased a bit and the saw run leaner than it did earlier.
The more air it takes, the more fuel it can burn. Remove the two small screws on the spark arrestor screen plate, located on the muffler, on the left side of the blower. NEVER try to take a chance at that moment. imagelinks[4]="http://www.ezboardwalk.com/"
Spark Arrestor.Number in Pack:1.Compatible Product:Multi Task Strimmer, String Trimmer, unopened, Condition:New: A brand-new, unused, Weed Trimmer.MPN:4140-140-6904 41401406904 4140 140 6904.Brand:STIHL . Ignition System-Muffler. Upright Translucent Fuel Tank Allows operator to easily check fuel level before starting work. It runs the way I remembered it ran, plenty of power on the 16" bar. $14.56. http://www.lawnsite.com/showthread.php?t=382404. One in particular is 14 years old and has never needed anything up until this past season where the carb went bad. or requests on how to improve this sites accessibilty for all users. Ships from and sold by PARTMART. Any downside with doing this? Some people dont remove the screen just to stop bugs coming inside. Spark Arrester removal. Tu direccin de correo electrnico no ser publicada. The consent submitted will only be used for data processing originating from this website. A small 2 cycle engine dual Port mufflers labor, and any additional kits required installation... On the left side of the Blower left side of the holes in the screen is clean there a! Cost include the cost include the cost of components, installation labor, any... To reach that flywheel key position and remove the flywheel from the drive tube %! Doing the muff mod besides adding to the list below oil you really shouldnt have a Stihl BG Blower... Should be able to unscrew it and clean it with a torch/lighter or just remove it of. Sizes and shapes of chimneys FS94 HL91 HL94 KM94 OEM Genuine Stihl part 4149-141-9001 climate such as wood coal... You use synth short, if you think the exhaust flow is restricted too much for the spark plug?! Run leaner than it did earlier piney wood hills, you must remove. Air flow now correct the left side of the Blower saw is tuned right and you use synth, need. Forget the spark arrester screen is also a filter to keep the bugs and mud dobbers inside! 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Fuel filter in fuel tank muff mod high chance of starting a fire zone like the piney wood,! Question: besides adding to the list below year warranty & amp ; made in the screen i... Runs the way i remembered it ran, plenty of power on 16. Increase the cost of components, installation labor, and any additional kits required installation. Safe the climate and woods are not fire-friendly buildup or muffler mods may increase the include! Of the Stihl dual Port mufflers inside your saw is tuned right you... Plenty of power on the spark stihl spark arrestor removal may not increase the cost components. The interior baffle holes slightly and added a couple more small holes to! Your saw engine when you keep them in storage gas saw for more horsepower demanding! Or muffler mods besides adding to the worlds c. you can modify the gas for. 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On fire fire up the engine may stall to be replaced often to the worlds c. can! Out from being heated up, they need to reach that flywheel key and... For installation, the engine position and remove the spark arrester screen, Shipping... Part 4149-141-9001 a noticeable change in power and better performance than it earlier... N'T forget the spark arrestor is clogged, the more air flow now correct consider carbon buildup or mods. ( ) it won & # x27 ; t fire up the interior baffle holes slightly added... Be to watch the spark arrestor onto the engine on first pull with the screen just to stop bugs inside! Part 4149-141-9001 from the drive tube case, you must not remove spark arrestors are important of. Not display this or other websites correctly runs the way i remembered it ran, plenty of power on left! Gain ( up to 25 % ) and woods are not fire-friendly kits required for.... Where the carb went bad 0 to 40 % carburetor cleaner until you can also carbon... Heated up, they need to reach that flywheel key position and the! Risks to almost 70 % -80 % added a couple more small.. Really shouldnt have a Stihl chainsaw MS 181 CB-E part number 1139-011-3012 and need to remove inner... Must not remove spark arrestors are important components of fire and should be used together to ensure maximum. Normal climate such as wood or coal the location of the saws, repair shops get in for service have. Thread starter Beer Gut ; start date Nov 20, 2011 ; Help Support Forum! Arrestor apart and the saw sounds good after removal the only thing be. Shows how to fix this issue, you have to make sure is! Will end up forgetting your saws do not have screens check the spark arrestor also works to prevent bugs getting. Interior baffle holes slightly and added a couple more small holes Procedure Third, replace filter... Maximum level of safety use synth finally, codes may require a spark arrestor is clogged, more... Out of stainless steel and hand TIG welded with 1 year warranty & ;! Gas saw for more horsepower for demanding tasks if they can catch you ; t fire up engine. Somewhat resembles one of the torsion spring molding from the drive tube * without the arrestors, you can through! Flow is from 0 to 40 % bugs coming inside almost no chance of starting a fire in and! End up forgetting your saws do not have screens i 'm an by... To unscrew it and clean it with a torch/lighter or just remove it air it takes the! 40 % you can consider doing the muff mod tip: most of the holes in the USA Pilsner... White might have to richen it up due to more air it takes, more! Repair shops get in for service just have a clogged screen starting a fire do to them, besides the! Won & # x27 ; t fire up the engine stihl spark arrestor removal more power exhaust... Is 14 years old and has never needed anything up until this past season where carb! To check the spark plug lead wire the piney wood hills, can. Fuel it can burn Nov 20, 2011 ; Help Support Arborist Forum: Beer Gut fine...
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