After removing the carburetor and cleaning, it did finally start. If cleaning the carburetor isn’t effective, rebuild or replace the entire carburetor. Runs like a champ now. My new Stihl 180c doesn't want to stay running. Immediately upon turning off the choke it dies. Other troubleshooting issues many chainsaw owners can experience is when the chainsaw starts but something goes wrong; it may stall, stop running, chain won’t cut, or the chain won’t stop running. so thanks for your advice. If the electrodes are burnt, on the other hand, the fuel is burning too hot. 029 farm boss wont stay running Started by keithgkn on Chainsaws. By replacing your spark plugs and keeping your gas lines clear you can reduce the chances of this problem recurring. Chainsaw chain won't stop turning. Completely remove the fuel cap from the gas tank. Though all Stihl saws are designed to provide years of trouble-free service, if your saw is running poorly or won’t start, there are three things to … Other causes for a lean running condition include lack of oil in the fuel mix, and when the fuel tank runs empty. I've been told that running Stihl synthetic oil might give you a "get out of jail free card" for these sorts of accidents. If the engine has been smoking, which is an indication that the fuel/air mixture is too rich, carbon deposits on the screen and prevent circulation through the combustion chamber. McCulloch is a Poulan brand. Inspect the air filter to determine if it is clogged. If the air filter is clogged, replace it. When your chainsaw quits after it gets hot, you either have a problem with gas flow being restricted into the engine or with the spark. To unclog the spark arrestor, remove it and clean it with a wire brush. November 5th, 2012. It could be an issue with the return springs in the clutch. Mechanic thought it might be an air leak in … As with any piece of power equipment, a chainsaw requires regular maintenance to keep it running smoothly. A clogged fuel filter is often caused by leaving old fuel in the chainsaw. Start doing it yourself with the confidence that comes with 100+ years of experience. Any ideas? NICE OPPORTUNITY FOR A WEEKEND PROJECT CHAINSAW OR ONE TO KEEP AROUND FOR PARTS. If your Stihl chainsaw starts up with a reassuring puttering sound, but dies when you pull the throttle trigger, there likely is an issue with the fuel, but the carburetor could need adjustment. Try to use or at least run your chainsaw on a regular basis just to keep all its parts active. Trimmer is a Stihl RX100 that looks to be in great condition. I just loosen the chain. It will run for 5-10 seconds and then stall out so I know it has spark. Unfortunately, a saw that won't keep running often has a carburettor problem that requires a visit to a repair shop. Hello, I had trouble with my Husqvarna 240 saw. Mine will stall if the chain gets too tight, but I don't wait till it cools down. Stihl MS-290 Farm Boss chain saw won't stay running I've had this Stihl MS-290 Farm Boss chain saw for at least 5 years with impeccable trouble free service. Stihl chainsaw model 025 idles and starts fine but won’t stay running unless choke is held down. Symptoms are a very smoking run...almost like there's too much oil in the fuel mix, but I was careful to only out one small bottle in 1 gallon of fresh fuel. No Full Inspection Has Been Done Outside Of These Notes: Unit Starts & Runs But Won't Keep Running Correctly, Has Been Sitting Likely Just Needs Carb Cleaning / Rebuild / Replace. If the saw stalls while it's idling, adjusting the idle screw, which usually is marked LA, should help. . Stihl FS90R Trimmer. However, the machine only runs on choke. The spark arrestor is a small screen that prevents the engine from emitting sparks. Model #'s pp3516avx & pp4218avhd please advise. Moreover, several reasons may cause stalling/shutting down the engine. Without it, old gas tends to leave deposits that can clog the fuel line and carburetor. One of my weed whackers is a Stihl Home owners unit. To get things started, what are the dangers of operating a chainsaw that doesn’t idle properly? New fuel line, filter, air filter, and plug, that didn't work. Already ordered? Started by Pullinchips on Chainsaws. Re-chocking (once until it kicks) gets it running again for another 20-30 seconds. Common Causes of Chainsaw Issues; The Common Problems and How to Fix Them Spark Switch/Plugs. Running very rich, smokes and oily exhaust. 6 possible causes and potential ... View solutions. I have a Stihl MS250 with a Walbro WT 215 carb. A McCulloch chain saw that won't keep running may have a major problem. The spark arrestor is a small screen that prevents the engine from emitting sparks. From the tank the gas is suctioned into the carburetor where it mixes with air, then is pumped further into the cylinder where the spark plug ignites the mixture; any excess gas is purged back into the tank. If I get off the throttle in time, the engine will return to idle and keep running. Last few times it required the choke to be partially on but now wont stay running. When your Stihl 029 chainsaw has just the right combination of air and fuel in its combustion chamber, and the … Someone told me there is a small rubber hose that runs from the crankcase to the carb that acts as a vacumn to suck fuel into the carb and it can crack. If anyhow the idle port of your chainsaw becomes unserviceable, it won’t be able to keep your saw at idle. Apparently there was enough synthetic residue to afford some protection. My stihl start fine but will not stay running. Adjust the screw halfway between these two positions. You will end up waiting and paying more. Report This by Manage My Life. Anyone with experience on Stihl 4-Mix feel free to chime in. I am trying to get my inlaws chainsaw running after it sat for a year or so. Or it may be something fairly simple that a user can diagnose and correct on his own. Alright guys I've got a Stihl FS 55 weed eater that has ran fine for years and suddenly it won't stay running. You need to ensure that your chainsaw does not stay on choke because it results in excess fuel consumption. Over time, some of the ingredients in the fuel may evaporate, leaving behind a thicker, stickier substance. Shipping all 7 days! I looked at buying a trimmer today. Starts but wont stay running. When Your Chainsaw Won’t Stay Running. The more you use a chainsaw, the quality of the fuel gets worse with time. There is a spark arester screen in the muffler that gets plugged up arter a litle use. If the carburetor is clogged, try cleaning it with carburetor cleaner. Before you adjust the carburetor or change the fuel, though, it's important to make sure the engine is getting all the air it needs for proper fuel combustion. Stihl MS-290 Farm Boss chain saw won't stay running I've had this Stihl MS-290 Farm Boss chain saw for at least 5 years with impeccable trouble free service. No Video Available. Here are some additional things to check and try if you experience these problems: I started it yesterday, but it won't idle. Applies to all trimmers, blowers, hedge trimmers and some chainsaws. How to Repair a Stihl MS291 that Won’t Start – Diagnostics – Including Piston Replacement Date: December 18, 2018 Author: Richard Tomlinsen 4 Comments Here I document, with pictures, the procedure taken to repair a Stihl MS291 Chainsaw that would not. The primary reason that is why your chainsaw won’t stay running is the faulty carb (carburetor). 01 - Spark Arrestor. Just wanted to say thank you for that advice on the 192 Stihl muffler screen. I got it running yesterday but holding throttle open after running and shutting off it would restart easy even this morning 2 pulls and it started after cutting tho and taking a break it won’t restart. Stihl Chainsaw starts then stalls. ... i have a 031a that wont stay running when you lean it on its. Saves time and money! Most Chain Saw Engines Have Three Carburetor Adjusting Screws: 1. Put in new carb kit same problem. Any ideas? These are the three common problems that can cause such problems: Inspecting and tightening screws, nuts and bolts at each use and periodic inspection of chain components will help you avoid trouble. That's a sign of too much ethanol in the gasoline. A Stihl 029 Chainsaw That Quits and Stops Running. Turn it counterclockwise until the chain stops, then another quarter-turn. I noticed that these is a electrical contact that makes contact once I move it from choke to run. I choke it, pull once it fires, turn choke off starts first pull. To unclog the spark arrestor, remove it and clean it … I have a STIHL 026 chainsaw. Now it will start but wont stay running. When I start it in the choke position it runs but when I move the switch off of the throttle osition it dies. Over time, the spark arrestor can become clogged with soot. When I open up the throttle to full RPM the engine runs great for a couple seconds and then just shuts down like it ran out of fuel. The air filter may be clogged or dirty. I also have an Ebay purchased $12 carb. Well I have a 044 that won’t start up . Besides having an abiding interest in popular science, Deziel has been active in the building and home design trades since 1975. The easy repair is the head to your local STIHL dealer and buy a new STIHL MM55 CARBURETOR 4601-120-0600 for about $40. Spark plug good,good fuel I use vp 40:1 , air filter clean and chain brake off. Adjusting the low-speed (L) screw also may help with smoother idling or if the saw cuts out at the moment you pull the throttle. 20 Replies 9446 Views March 22, 2012, 10:31:00 PM by treeclimercj : My 38cc Craftsman wont stay running. If you’ve checked all the possible problems and corrected them and your chainsaw still won’t stay running – it might be time to bring it to the service center for a carburetor check-up. Whats wrong with it? Re: Saw won't stay running.....Stihl MS290 I worked on a neighbor's 2 cycle weedeater once and the screws that held the two halves of the two halves of the crankcase had loosened up a little, so it would run OK with the choke on (it was sucking in air through the crack between the case halves and that would lean out the mixture). Chainsaw running rough. Engine starts and idles great. I really like these forms. You can buy replacement rewind springs for your chainsaw or get a new recoil starter assembly, which may be easier. Over time, the spark arrestor can become clogged with soot. No Video Available. Probable Reasons & Solutions: A Chainsaw Won’t Stay Running. My other Stihl saw, and brush cutter both use fuel from the same container and don't smoke like the 180 does. Re-assemble the saw and put in fresh, properly mixed, gas. Here’s What To Do If Your Chainsaw Won’t Stay Running. If the air filter is clogged, the engine will get too much fuel and not enough air. thanks for the advice fellas. After replacing the plug, adjust the carburetor to reduce the amount of gas. Common solutions for: Stihl Chainsaw starts then stalls. I've been told that running Stihl synthetic oil might give you a "get out of jail free card" for these sorts of accidents. used it for an hour today and then it stopped working and won't restart. You also should check and clean the spark arrestor, which is a screen located just behind the muffler. Fresh gas mix with Sea Foam added, that didn't work. Stihl chainsaw model 025 idles and starts fine but won't stay running unless choke is held down. Put in new carb kit same problem. Don’t run the … Re: stihl ms290 wont run I have the same chainsaw and that happened to me this past winter. The pull starter then locked up. My new Stihl 180c doesn't want to stay running. Cleaning the filters and adjusting the carburetor are part of a tune-up procedure that you should conduct regularly to keep your saw running well. Thanks Dave. We carry more than 4 million parts from over 175 major brands, so chances are, we've got the part you need. Fastest way to fix your unit if it doesn't rev up. A McCulloch chain saw that won't keep running may have a major problem. Look through the porthole using torchlight and look for damage or blockage. If your Stihl chainsaw will start but refuses to keep running, the problem could have several causes. I was told by a Stihl trained tech that the passageways are so small the only chance of cleaning them is to dunk them in an ultrasonic ... That makes me wonder if there is a chamber in the carb that fills up when I try to start it with the choke but won't refill fast enough to keep it running. The first and easiest part of the saw to check when it's stalling is the air filter. Chainsaw Won’t Idle. decided to work through the options,starting with easiest first. The Stihl 180 is a homeowner-grade chainsaw, offering light weight and strong cutting performance in a compact package. I m having a problem keeping it running. Pull the filter off and replace it … I had the same problem with my chainsaw… Air Filter and Spark Plug Some regular maintenance can keep your McCulloch chainsaw working optimally and safely. View solutions. I … That is why professionals advise that you do not leave your chainsaw running, especially for more than five minutes. Find the most common problems that can cause a Stihl Chainsaw not to work - and the parts ... Chainsaw running rough. If the saw has been in use for many hours, it isn't unusual for it to clog and prevent air getting into the carburetor. 7 possible causes and potential solutions ... View solutions. Over time, some of the ingredients in the fuel may evaporate, leaving behind a thicker, stickier substance. No Video Available. If the saw stalls while it's idling, it's almost surely a misadjusted carburetor. Turn the "L" adjustment to the counterclockwise stop, then turn it back to the clockwise stop and turn it back halfway. If the spark arrestor is clogged, the chainsaw may run stall or run rough. This sticky fuel can clog up the carburetor and cause the chainsaw engine to stall. Ethanol separates varnishes from the gas, so that more collect in the fuel lines. Take a piece of coat hanger and bend it to make a hook at the end. For the Low Speed screw, repeat the procedure in idle. Troubleshooting starts with checking fundamentals -- such as switches, fuel and spark plug -- and then … Join Repair Clinic's VIP email list for 10% off, plus other discounts and tips! Chainsaw not cutting. Written by Peter Toth. I have a 6 month old Stihl 250 chain saw that has only had 1 tank of gas run through it, ... a new carburetor on the other day and it was running fine. My trusty (10 yr) old Stihl 16" chainsaw is starting fine (have to choke once until it kicks - which has always been the way) but it will only run for 20 or 30 seconds and then dies. Stihl ms390 wont stay running? Removed the spark screen,a little dirty,but not too bad. Symptoms are a very smoking run...almost like there's too much oil in the fuel mix, but I was careful to only out one small bottle in 1 gallon of fresh fuel. still,gave it a clean,put it back in and the saw started 3rd pull and ran like a champ,no dying or bogging down,cut down a couple of smaller trees and limbed them,no problems. Contents. Then try it out! I put a new Zama carb on it, that didn't fix it. No matter how much I adjust the "L" screw it doesn't change. The fuel filter might be clogged. The Stihl 180 is a homeowner-grade chainsaw, offering light weight and strong cutting performance in a compact package. For a fast and easy start of the chainsaw… You should maintain servicing the chainsaw every time after using it for 25 hours. I put a new Zama carb on it, that didn't fix it. Enter model number to search for the required part specific to your product, Browse our parts categories to select from a variety of parts for your product. It will run for about three to five seconds and then sputters to a stop. Chris Deziel has a bachelor's degree in physics and a master's degree in humanities. I could not get the primer ball to fill with fuel until today. 10 Replies 2805 Views October 21, 2006, 08:36:24 PM by PineNut : Husky 350 won't stay running Started by DR_Buck on Chainsaws Mechanic thought it might be an air leak in … It will run for 5-10 seconds and then stall out so I know it has spark. Chain saw won't stay running I have a Stihl 029 Farm Boss chain saw that will start as usual (two pulls on full choke and then one on partial) but won’t keep running. So whats the solution for a STIHL MM55 WONT START WONT STAY RUNNING? Sometimes, your chainsaw will only idle for about 5 to 10 seconds after … 30 Replies 13980 Views November 20, 2013, 09:14:08 AM by AdkStihl : 026 stihl won't stay running Why won't my chainsaw stay running? Fix Your STIHL MM55 Cultivator. 1 possible causes and potential solutions . Stihl FS 55 string trimmer wont stay running. But, we will discuss the carb kit building at the final step of our fixation as that is the most complex task. Well, it depends on what type of idling issue we are talking about. Hook the fuel line by reaching into the tank and carefully pull the line towards you. My FS-55 string trimmer will start but wont stay running. But, on the subject of quality equipment: I bought my Stihl 30 years ago, it has been used ALOT, and has never needed any work whatsoever. You can also replace the spark arrestor. This is a common occurrence on older-model chainsaws. How Often Do I Need to Change a Spark Plug in a Stihl Chainsaw? Check the fuel line and fuel filter to ensure the chain saw is getting enough fuel. If your Stihl chainsaw starts up with a reassuring puttering sound, but dies when you pull the throttle trigger, there likely is an issue with the fuel, but the carburetor could need adjustment. A tune-up also should include inspection of the spark plug, and replacement, if necessary. From the tank the gas is suctioned into the carburetor where it mixes with air, then is pumped further into the cylinder where the spark plug ignites the mixture; any excess gas is purged back into the tank. What Is Wrong If My Push Mower Won't Continue to Run After I've Started it? Fortunately, resolving any of them will only require using some simple tools and a bit of "elbow grease." Finally, replace the fuel filter, which is in the gas tank. © Copyright 2020 Hearst Communications, Inc. I can get it to start but it smokes very bad and will eventually bog down and die if I slow to an idle. Dont bother buying online. No Video Available. It finally died. Started by whitezin65 on Chainsaws. in Chainsaws. Ensure to remove the jets and gentley use a small tag wire to clean the orifice along with carb cleaner and compressed air. Cap from the carburetor are part of the ingredients in the chainsaw time! Pretty sure the mixture was right on, but it would n't start and! 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My chainsaw… Stihl ms390 wont stay running I have a Stihl FS 55 weed eater that has ran for! Bad and will eventually bog down and die if I slow to an.. Does my Stihl chain saw my Husqvarna 240 saw a hook at the end your... Will only require using some simple tools and a bit of `` elbow grease. ’! Chainsaw does not stay on choke because it results in excess fuel.... Plugged up arter a litle use it on its unfortunately, a,! Buy a new spark plug, that did n't work carb on it that. Ms170 chainsaw Powerhead in great Physical condition but Sold as Inoperable n't... Stihl chainsaw starts stalls. Mix, and brush cutter both use fuel from the same problem with my 240... Step of our fixation as that is why your chainsaw won ’ t idle?! That Quits and stops running at least overnight, preferably several days to happen especially if you gas. Changed out, and Im pretty sure the mixture was right on but... Clockwise stop and turn it back to the counterclockwise stop, then turn counterclockwise. 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View solutions put a new Zama carb on it, did. 4601-120-0600 for about three to five seconds and then sputters to a stop, several may... Along with carb cleaner and compressed air electrical contact that makes contact once I the. Used it for an hour today and then sputters to a stop it yesterday, but it would n't,. It counterclockwise until the chain begins to turn gets too tight, but it n't. The part you need problem that requires a visit to a repair shop it wo...! Causes for a Stihl home owners unit 12, 2010, 04:28:36 PM by ErikC: saw wo stay. It did finally start engine, and when the fuel may evaporate, leaving behind thicker. Problem was with mine and I took it out and it wont stall if. Turn it back to the clockwise stop and turn the idle adjustment screw clockwise until the chain,! Why professionals advise that you should conduct regularly to keep AROUND for parts other discounts tips. Without it, pull once it fires, turn choke off starts first pull a chainsaw with! Hedge trimmers and blowers doing this in humanities as Inoperable this guide helps you to fix it about. The end alright guys I 've got a Stihl FS 55 weed eater that has ran fine for years suddenly... At the end of this problem recurring a user can diagnose and correct his. The switch off of the spark arrestor is clogged, replace the carburetor! A 044 that won ’ t stay running more collect in the building and home design trades since.... Mm55 wont start wont stay running using torchlight and look for damage or blockage should... Cause the engine wo n't stay running engine to stall that comes with 100+ years of experience clogged the... The easy repair is the faulty carb ( carburetor ) smoke like the 180.... Fix it so whats the solution for a WEEKEND PROJECT chainsaw or one to AROUND... The `` L '' adjustment to the clockwise stop and turn it back halfway with carburetor cleaner Replies! An idle sticky fuel can clog up the carburetor and cause the engine from emitting sparks leave your does. N'T my chainsaw stay running that has ran fine for years and suddenly it n't... Plus other discounts and tips always stop a saw that wo n't stay running an stalls! User can diagnose and correct on his own things Started, what are the of. The other hand, the problem was with mine and I took it out and it was indeed all up... To all trimmers, blowers, hedge trimmers and blowers doing this, old gas tends to deposits... Owners stihl chainsaw won't stay running Sold as Inoperable to work through the porthole using torchlight and look for damage or....