I've been told that running Stihl synthetic oil might give you a "get out of jail free card" for these sorts of accidents. Mine will stall if the chain gets too tight, but I don't wait till it cools down. Here are some additional things to check and try if you experience these problems: That was what the problem was with mine and I took it out and it was indeed all carboned up. My new Stihl 180c doesn't want to stay running. 029 farm boss wont stay running Started by keithgkn on Chainsaws. Running very rich, smokes and oily exhaust. Saves time and money! It wont stall however if I run it at almost full throttle. It finally died. New fuel line, filter, air filter, and plug, that didn't work. I put a new Zama carb on it, that didn't fix it. . Always stop a saw before the tank runs completely dry. 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. 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. it has spark. Shipping all 7 days! Chainsaw running rough. 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. My FS-55 string trimmer will start but wont stay running. 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 get things started, what are the dangers of operating a chainsaw that doesn’t idle properly? Hold times are long. When Your Chainsaw Won’t Stay Running. Removed the spark screen,a little dirty,but not too bad. I had the same problem with my chainsaw… Or it may be something fairly simple that a user can diagnose and correct on his own. Re-chocking (once until it kicks) gets it running again for another 20-30 seconds. It will run for about three to five seconds and then sputters to a stop. 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. © Copyright 2020 Hearst Communications, Inc. Report This by Manage My Life. This sticky fuel can clog up the fuel filter and cause the engine to stall. I have to run it on half choke all the time or it will act like it s running out of gas and then stall. Fortunately, resolving any of them will only require using some simple tools and a bit of "elbow grease." We've got millions of parts, hundreds of brands, and thousands of step-by-step videos— everything you need to find it, fix it and finish the job right. Stihl chainsaw starts but won't... Stihl chainsaw starts but won't run full throttle. For the Low Speed screw, repeat the procedure in idle. If the saw is stalling when you pull the throttle trigger or it doesn't reach its full power, adjust the high-speed (H) screw. Trimmer is a Stihl RX100 that looks to be in great condition. Turn the "L" adjustment to the counterclockwise stop, then turn it back to the clockwise stop and turn it back halfway. This guide helps you to fix it without experiencing difficulties. Find the most common problems that can cause a Stihl Chainsaw not to work - and the parts & instructions ... Chainsaw won't start. Chainsaw chain not turning. Some regular maintenance can keep your McCulloch chainsaw working optimally and safely. used it for an hour today and then it stopped working and won't restart. I know that it's totally frustrating to have a chainsaw start and not stay running. I can get it to start but it smokes very bad and will eventually bog down and die if I slow to an idle. An engine stalls when it's getting too much or not enough fuel from the carburetor. No matter how much I adjust the "L" screw it doesn't change. You will end up waiting and paying more. A tune-up also should include inspection of the spark plug, and replacement, if necessary. A Stihl 029 Chainsaw That Quits and Stops Running. These are the three common problems that can cause such problems: After removing the carburetor and cleaning, it did finally start. As a result, the chainsaw won’t stay running. This is likely to happen especially if you use gas containing more than 10 percent ethanol, which Stihl doesn't recommend. 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. Any ideas? Last few times it required the choke to be partially on but now wont stay running. If you're in the habit of leaving the chainsaw idle for extended periods with gas in the tank, you should add fuel stabilizer. 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. Troubleshooting starts with checking fundamentals -- such as switches, fuel and spark plug -- and then … 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. I choke it, pull once it fires, turn choke off starts first pull. Re-assemble the saw and put in fresh, properly mixed, gas. Turn it counterclockwise until the chain stops, then another quarter-turn. 20 Replies 9446 Views March 22, 2012, 10:31:00 PM by treeclimercj : My 38cc Craftsman wont stay running. Chainsaw Won’t Idle. 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 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. Alright guys I've got a Stihl FS 55 weed eater that has ran fine for years and suddenly it won't stay running. Hook the fuel line by reaching into the tank and carefully pull the line towards you. Inspecting and tightening screws, nuts and bolts at each use and periodic inspection of chain components will help you avoid trouble. Apparently there was enough synthetic residue to afford some protection. No Video Available. I just loosen the chain. Stihl Chainsaw starts then stalls. 6 possible causes and potential ... View solutions. Put in new carb kit same problem. I could not get the primer ball to fill with fuel until today. I have a Stihl MS250 with a Walbro WT 215 carb. November 5th, 2012. Fresh gas mix with Sea Foam added, that didn't work. Ethanol separates varnishes from the gas, so that more collect in the fuel lines. That is why professionals advise that you do not leave your chainsaw running, especially for more than five minutes. 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). It will run for 5-10 seconds and then stall out so I know it has spark. It could be an issue with the return springs in the clutch. I m having a problem keeping it running. 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. If the carburetor is clogged, try cleaning it with carburetor cleaner. I noticed that these is a electrical contact that makes contact once I move it from choke to run. 10 Replies 8129 Views March 12, 2010, 04:28:36 PM by ErikC : Saw won't stay running Started by JohnnyF on Chainsaws. Stihl MS170 Chainsaw Powerhead In Great Physical Condition But Sold As Inoperable. Stihl chainsaw model 025 idles and starts fine but won't stay running unless choke is held down. Other causes for a lean running condition include lack of oil in the fuel mix, and when the fuel tank runs empty. Started by Pullinchips on Chainsaws. How to Check the RPM on a Husqvarna Chain Saw, Repair Guide for a Weed Eater FeatherLite SST25C, Stihl: Gasoline Guidelines for Stihl Outdoor Power Equipment. Runs like a champ now. Model #'s pp3516avx & pp4218avhd please advise. Here, we shall discuss some of the problems that prevent a chainsaw from working and the best solutions as to why your chainsaw won’t stay running. 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. Why Does My Stihl Chain Saw Bog Down When I'm Cutting? Put in new carb kit same problem. This is a common occurrence on older-model chainsaws. If the saw stalls while it's idling, adjusting the idle screw, which usually is marked LA, should help. 6 possible causes and potential solutions . Adjust the screw halfway between these two positions. I can get it to start but it smokes very bad and will eventually bog down and die if I slow to an idle. I believe its starving for … Most Chain Saw Engines Have Three Carburetor Adjusting Screws: 1. I am trying to get my inlaws chainsaw running after it sat for a year or so. Stihl FS 55 string trimmer wont stay running. Over time, some of the ingredients in the fuel may evaporate, leaving behind a thicker, stickier substance. Re: stihl ms290 wont run I have the same chainsaw and that happened to me this past winter. Check the fuel tank Checking the tank to ensure it’s not empty is probably one of the first things many people do when a chainsaw won’t stay running. I have a STIHL 026 chainsaw. ... i have a 031a that wont stay running when you lean it on its. Already ordered? Mechanic thought it might be an air leak in … No Video Available. However, the machine only runs on choke. When your Stihl 029 chainsaw has just the right combination of air and fuel in its combustion chamber, and the … 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. My other Stihl saw, and brush cutter both use fuel from the same container and don't smoke like the 180 does. Stihl ms390 wont stay running? I also have an Ebay purchased $12 carb. Over time, the spark arrestor can become clogged with soot. Over time, the spark arrestor can become clogged with soot. Start the engine, and turn the idle adjustment screw clockwise until the chain begins to turn. The easy repair is the head to your local STIHL dealer and buy a new STIHL MM55 CARBURETOR 4601-120-0600 for about $40. If the spark arrestor is clogged, the chainsaw may run stall or run rough. To unclog the spark arrestor, remove it and clean it … Secondly use 2 ounces of fuel cleaner within fresh fuel and let it sit a half hour then attempt restart using choke to keep unit running until cleaner … Starts but wont stay running. we took one of ours in and it took them like 2 min to fix it. No matter what I … Then i unlocked it, put a new spark plug in it, and it wont stay running. 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. Chainsaw won't stay running. 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. Take a piece of coat hanger and bend it to make a hook at the end. No Video Available. Fix Your STIHL MM55 Cultivator. Besides having an abiding interest in popular science, Deziel has been active in the building and home design trades since 1975. Dont bother buying online. When I start it in the choke position it runs but when I move the switch off of the throttle osition it dies. Chainsaw not cutting. Common solutions for: Stihl Chainsaw starts then stalls. Email. 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. The primary reason that is why your chainsaw won’t stay running is the faulty carb (carburetor). so thanks for your advice. 30 Replies 13980 Views November 20, 2013, 09:14:08 AM by AdkStihl : 026 stihl won't stay running 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. Moreover, several reasons may cause stalling/shutting down the engine. I've been told that running Stihl synthetic oil might give you a "get out of jail free card" for these sorts of accidents. 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. Don’t run the … 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. Thanks Dave. Jump to Latest Follow ... My FS-55 string trimmer will start but wont stay running. Sometimes, your chainsaw will only idle for about 5 to 10 seconds after … Here’s What To Do If Your Chainsaw Won’t Stay Running. My stihl start fine but will not stay running. 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. The fuel system on a chainsaw begins with the tank. The Stihl 180 is a homeowner-grade chainsaw, offering light weight and strong cutting performance in a compact package. Applies to all trimmers, blowers, hedge trimmers and some chainsaws. 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. It will run for 5-10 seconds and then stall out so I know it has spark. No Video Available. We carry more than 4 million parts from over 175 major brands, so chances are, we've got the part you need. Find the most common problems that can cause a Stihl Chainsaw not to work - and the parts ... Chainsaw running rough. Stihl chainsaw model 025 idles and starts fine but won’t stay running unless choke is held down. 1 possible causes and potential solutions . Pull the filter off and replace it … The spark arrestor is a small screen that prevents the engine from emitting sparks. Require using some simple tools and a bit of `` elbow grease., PM. 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