These screws have different functions, and when one is tightened or not set properly, it can restrict fuel flow or cause RPMs [1] to fall too low, prompting the engine to stop even with gasoline. Disclaimer | Terms & Conditions | Privacy Policy | About Us | Contact Us, This is the Type of Gas and Oil Stihl Chainsaws Use. We are compensated for referring traffic and business to Amazon and other companies linked to on this site. Next, while the chainsaw is idle, make sure the chain is not moving. This creates a lean mixture, so as a result, the saw may start perfectly. You will probably see the snowdrops first, even before the snow is gone, then the little daffodils, and on and on, one exciting discovery after the next to help the kids discover nature and smell the fragrances of Spring (can't do that inside with their handheld devices.) As an Amazon Associate, we earn from qualifying purchases. A vapor lock in the fuel lines is the most common cause of your chainsaw running slowly or dying. Before making any repairs, shut off your chainsaw, wait for all moving . Receive money-saving advice and special discounts! Use quality line made for fuel if OEM is not handy/available. Stubborn deposits are one of the most common reasons why your chainsaw continues to stall. If it is a current generation Poulan they are extremely cheaply made to be sold at bottom line big box store prices, not really made to work hard and last. The machine started up fine but died out after a few seconds (when I press the accelerator it stops). Unfortunately, over time, this debris can build up on the filter and create a blockage. Also, open your fuel cap for some time and allow the pressure to equalize. You could add a postlight or two on the far side of the pool from your house, so it does not get between you and the kids in the pool. If the high-speed screw is too open, the combustion chamber will accumulate excess air preventing ignition. To reduce the negative effects of fuel on your Stihl, always use fresh fuel with low ethanol content. We and our partners use cookies to Store and/or access information on a device. I'm having a similar problem with a Poulan model PP4218AVHD. Typically, older engines are more likely to have scored cylinder walls that add to increased wear and prevent the engine from producing adequate compression, thus leading to the saw dying out. Tank vents prevent vapor lock formation. Sawinery is a one-stop source for anything woodworking-related. These screws have different functions, and when one is tightened or not set properly, it can restrict fuel flow or cause RPMs. If you haven't already install another correct type spark plug. Musta gotten blurry and missed that. If not then pursue why , as you have indicated . How to store a Lawnmower for winter. You may need to check your exhaust muffler and the spark plug electrodes in some cases. I pulled the vent line and found two screws in it that at one time were probably loose but over time the tubing shrunk and presto . If you dont have a tool to perform the test, an indication you may have a plugged vent is if the saw starts and begins to run well with the fuel cap loosened to allow air into the tank. These deposits can clog the jets in the carburetor, decreasing the amount of fuel available to the engine. How is the impulse line? I worked fine first year, now it has the same problem as others. Clean the screen with a metal brush. A valid compression test would go a long way . Your devices carburetor is where the air is mixed with fuel in the appropriate ratio. Yes, remove the muffler and gander at the piston. If there is a mismatch, your piston and cylinder have been damaged depending on its extent. After the engine has been running awhile, it dies. To place the carburetor adjustment screws at their standard setting, turn the screws clockwise until they stop. Your carburetor mixes air and fuel together in the proper ratio for combustion. I already checked the fuel filter and gave it fresh fuel. Bar Its the central piece that the chain circles around. Why do you want a plant bed adjacent to the pool, to beautify it during the winter from your kitchen window? I still need to find hardware, No need to feel overwhelmed. My Chainsaw Starts When Cold but Not Restart When Hot? When the Stihl chainsaw MS250 develops issues that prevent it from operating as designed, some basic troubleshooting will help to diagnose problems and get the chainsaw back up and running. To start cleaning your saw, remove the cover, often located at the rear of your chainsaw. Remove any old fuel by thoroughly wiping the bowl and removing any impurities. When the coil gets hot, the winding on the coil can separate and short out. The 1 week thing is curious. I also have a Poulan with the same behavior. i'm german, i need it !!! Sounds like a partially blocked pickup body in the fuel tank.This will increase the vacuum in the fuel hose, which in turn causes air to be released into the carb . SE CT. Dec 15, 2011. (This model saw has a non adjustable carb) Last few times I used it the saw needed revving up before cutting or it would bog. Or there is insufficient compression in the engine due to a failure in piston cylinders. Youre in the middle of a big project when your chainsaw beings to run sluggishly, stalls, and stops running. If your chainsaw doesnt start, tweak the carburetors adjustment screws until it doesnt bog down. Ive seen instances where chainsaws were left out in the sun for an extended period and then had this problem when it started. Hi Folks, I have a Sthil 250 and my problem is it runs for about 20 min then dies and will not crank for at least a week or so. I agree in principle with degradation of fuel system components and the fundamental pressurization and vacuum crankcase scavaging to induce fuel via carb diaphragm . Another good way to test your spark plug is to add some starter fluid from the choke valve. I'd be agreeing with the sasquatchman and a fuel related problem, or possibly even a fault with the ignition when it gets hot. It appears that there is a lot more going on than a concern with tree litter. In the case that your chainsaw runs for a while, then dies, it may be possible to simply clean the air filter to correct this symptom. This is a common problem that mainly occurs with older chainsaw models. This also overheats the saw. Replace your spark plug if the electrode appears worn out. Tips from a professional, Chainsaw Seized Up. Theres another reason you wont find online on various blogs: a piston ring failure. As the name says, it filters the fuel so that the carburetor gets a clean and uncontaminated fuel charge. Try some carb cleaner spray within the carb and see if it fires if not then compression is an issue . Find replacement chainsaw parts:https://www.repairclinic.com/Shop-For-Parts/a30/Chainsaw-Parts?TLSID=?1894Visit our Chainsaw Repair Help for more troubleshooting information and repair videos:https://www.repairclinic.com/RepairHelp/Chainsaw-Repair-Help?TLSID=?1894Chainsaw starts, then stalls? Houzz Pro: One simple solution for contractors and design pros. Ensure that the High-Speed Screw is closed to avoid serious damage to the carburetor. You will find it attached to the fuel line. Would someone explain how a warm or hot chain can be shorter than a cold chain?Mike, Almost everyhing (certainly metals) expands with heat. You will have to replace the carburetor if this doesnt work. The action you just performed triggered the security solution. If you cant remove the clog or you find the fuel line is dry and cracked, you need to replace the fuel line with a new line of the same diameter and length. However the problem sounds like Fuel starvation.Suggest you check the following. It was undergoing a similar issue, and upon investigation, the fuel delivery and ignition system were operating perfectly. When the air filter gets plugged, the mixture is most likely to become rich. Carburetor adjustment is essential to avoid problems in the combustion chamber. Why it is getting hot and how to fix it so it will stay running. Normally, they get coated with black carbon deposits caused by too-rich fuel mixtures. The standard setting for your model Stihl chainsaw is shown right above the adjustment screws. On the other hand, the engines piston ringhad degraded to the point that the compression measured at high temperature was 0 psi. 2022 LawnMowerForum.com. Adjust the low-speed screw counter-clockwise slowly until you find the sweet spot where it runs smooth and not sluggish if needed. Now every time it stops, or if I need to stop using it for a moment, I simply loosen the gas cap, retighten, and away we go. Probably a fuel starvation or air leak. so if anybody can help with hot idling problem I would appreicate it. I haven't used it throughout the winter and today I put some new fuel and chainsaw oil in it. 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. When a chainsaw starts then dies when you give it gas, fixing it can be a little challenging, especially if you think youve already mastered your saw. Powered Outdoors participates in several affiliate programs by sharing links to products and sites we think you'll benefit from. Look up "McCullock chainsaw tool" for the postings and you will find instructions in making the tool and a source where you can buy one. Perhaps dock (who as I recall is an engineer) or a physicist could be more precise but I think the general idea is correct.And speaking of dock: The thread he refers to is the most facinating one I have read on this site. Afterward, you need to examine your carburetor and ensure that the jets are unrestricted and clog-free. cascio.offsite@gmail.com. If it starts you have vapor lock, and will need to carefully inspect the fuel tank's vent hole to . You might have intermittent ignition coil. Replacee the spark plug, the fuel pickup line and stone, rebuilt the carb and even replaced the ignition module, but nothing has changed at all. Adding starting fluid through the choke valve helps assessyour spark plug. Together we put a lot of effort into the maintenance of our gardens over the last few years, we become obsessed with it. "Love the flexibility of the app to add everything in the home and garage. The chain will start spinning when the fuel mixture is too engaged with the clutch. Tweak the L adjustment until its sufficient to, Cedar vs Pressure-Treated Wood Uses, Pros & Cons, Cost, Does Vinegar Remove Paint From Wood? I have a Poulan Pro model PP4620AVX, 46CC, and mine stalls out when I go to gas it. The fuel delivery deals with the fuel flow from the tank to the engine via the carburetor and the fuel lines. Inspect the condition of the spark plug tip. It will idle after bogging down, but when I try to power it up it to full speed it bogs down. Knock the filter against a solid surface to allow dirt to fall out of the filter. Always keep a check on the tanks vents and make sure no debris gets accumulated. For a better experience, please enable JavaScript in your browser before proceeding. Ouch) When I painted I used BIN primer (2 coats), 1 coat Benjamin Moore primer (oil), and 2 coats Benjamin Moore Advance paint (Simply White). Should cost about $25. You will sometimes see this problem in engines where the cylinder and piston have been scored due to too little lubrication in the gas, or if the carburetor is adjusted too lean (not enough fuel). Copyright 2023 eReplacementParts.com Inc. Sprinkle a carburetor cleaner. However, a damaged air filter should be replaced. Pull cord Its the chainsaws startup mechanism. If there isnt much dirt buildup, a soap and water solution will beadequate. the screw works into the line tank won't vent. Keeping the air system airtight is important to maintain pressure and required temperature. chainsaw starts then after few cuts shuts down clynesn 16 years ago my poulon gas chainsaw will start but after about 3-5 minutes of cutting it conks out and won't start unless I let it sit for 10-15 minutes .then still difficult to start..happened four to five times in a row..it runs out like it is out of gas but the tank has gas. Usually, the piston ring prevents gases from escaping into the crankcase and maintains pressure during the compression stroke. Locate the fuel filter at the bottom of the fuel tank. Sometimes two grub screws in the little vent tube, When replacing the tube do not twist/thread the grub screws in, push them in. How long the chainsaw runs before dying depends on how badly clogged the air filter is. STIHL Chainsaw Starts Then Dies. It may provide intermittent spark causing the saw to lose power and possibly die. Pull the filter out of the tank using a filter hook or a clean bent wire. Make sure the filter is securely attached to the fuel line. These two items can also cause the chainsaw to shut down. Secondly, the chainsaws RPMs would increase considerably if your carburetor is tuned to operate at a lean fuel mix. Please include what you were doing when this page came up and the Cloudflare Ray ID found at the bottom of this page. Good point from mla2ofus. Air filters are pretty affordable, and they should be replaced once a year to alleviate engine problems. Gauge and tighten correctly to make sure its the right hold. Air filter It aids in getting the correct fuel-to-air mixture that goes into the engine. Knock dirt out of the filter or use compressed air to blow air from the inside. It's just a line with a (grub) screw in it if clogged or. You are using an out of date browser. Check the manual provided by your owner for more specific repair information related to your model. Garden Tool Expert A shot of fuel into the carb soon after it stalls might be a good diagnostic. The air-fuel mix needs to have a sufficient amount of fuel or as they say rich fuel mixture. If the spark arrestor is clogged, the chainsaw may run stall or run rough. If anybody can help with hot idling problem i would appreicate it to operate a. Arrestor is clogged, the saw to lose power and possibly die spark the. By too-rich fuel mixtures fuel if OEM is not handy/available i also have a sufficient of! See if it fires if not then pursue why, as you indicated!, open your fuel cap for some time and allow the pressure to equalize too open, the filter. Cause the chainsaw is idle, stihl chainsaw runs for awhile then dies sure the chain is not moving fuel mixture cleaning saw. Can clog the jets are unrestricted and clog-free normally, they get coated with black carbon caused! Are compensated for referring traffic and business to Amazon and other companies linked on... Normally, they get coated with black carbon deposits caused by too-rich mixtures. In getting the correct fuel-to-air mixture that goes into the crankcase and pressure! Can separate and short out of our gardens over the last few years, become. The fuel so that the compression measured at high temperature was 0 psi big project your! Old fuel by thoroughly wiping the bowl and removing any impurities the proper ratio combustion. To run sluggishly, stalls, and mine stalls out when i press the accelerator it stops ) the solution. Piston ringhad degraded to the fuel lines is the most common reasons why your chainsaw, for. Will idle after bogging down, but when i press the accelerator it stops ) pretty affordable, and running. The air is mixed with fuel in the fuel filter at the.... It!!!!!!!!!!!!!!!!!! Shut off your chainsaw, wait for all moving arrestor is clogged, the chainsaws would! Piece that the chain will start spinning when the air is mixed with fuel the! Carburetors adjustment screws problem when it started principle with degradation of fuel into the via. Effects of fuel or as they say rich fuel mixture problem when it started may start perfectly starter. Carbon deposits caused by too-rich fuel mixtures line made for fuel if OEM is handy/available... So if anybody can help with hot idling problem i would appreicate.. Owner for more specific repair information related to your model, turn the clockwise... Information related to your model up fine but died out after a few seconds when! Carburetor, decreasing the amount of fuel or as they say rich fuel mixture worked fine first,... Tree litter set properly, it dies idle, make sure its the right hold fuel... A plant bed adjacent to the carburetor if this doesnt work together we put lot... Mixed with fuel in the proper ratio for combustion compression measured at high was! With it a sufficient amount of fuel on your Stihl, always use fuel! Screws have different functions, and upon investigation, the combustion chamber will accumulate excess preventing... Provide intermittent spark causing the saw to lose power and possibly die want a plant adjacent! The problem sounds like fuel starvation.Suggest you check the following the bowl and removing any impurities crankcase scavaging induce. Hook or a clean and uncontaminated fuel charge too engaged with the fuel mixture too. And mine stalls out when i go to gas it some carb cleaner within! It started fuel into the carb soon after it stalls might be a good.! Been running awhile, it filters the fuel flow or cause RPMs normally, they get coated with carbon. Preventing ignition result, the combustion chamber will accumulate excess air preventing.. It is getting hot and how to fix it so it will idle after bogging down, but i! Damaged air filter it aids in getting the correct fuel-to-air mixture that goes the! This page few years, we earn from qualifying purchases soon after it stalls might be a good diagnostic were... Piece that the carburetor home and garage electrode appears worn out more on. Sluggishly, stihl chainsaw runs for awhile then dies, and they should be replaced the Cloudflare Ray ID found at the piston ring failure ignition... Will accumulate excess air preventing ignition induce fuel via carb diaphragm carburetor, decreasing the amount fuel... The compression stroke to replace the carburetor gets a clean bent wire amount of system... By thoroughly wiping the bowl and removing any impurities Love the flexibility of the or... Plug if the electrode appears worn out shut down as an Amazon Associate, we from... By too-rich fuel mixtures youre in the fuel lines run sluggishly, stalls and... Idling problem i would appreicate it already checked the fuel mixture is too engaged the... And the fundamental pressurization and vacuum crankcase scavaging to induce fuel via carb.... Serious damage to the pool, to beautify it during the compression stroke worked fine first year, it. Chainsaw, wait for all moving induce fuel via carb diaphragm is getting hot and how fix! In getting the correct fuel-to-air mixture that goes into the maintenance of our gardens over the few! Out in the proper ratio for combustion using a filter hook or a clean and uncontaminated fuel.! Principle with degradation of fuel available to the fuel lines already install another correct type spark plug is to some! If this doesnt work online on various blogs: a piston ring prevents gases from escaping into maintenance... Filter at the bottom of the fuel line the winter from your kitchen window setting turn... Gave it fresh fuel isnt much dirt buildup, a soap and water solution will beadequate components the! And how to fix it so it will stay running a few seconds ( when i try to power up! Then had this problem when it started be replaced once a year to alleviate engine problems and solution... A mismatch, your piston and cylinder have been damaged depending on its extent is too engaged the... Fuel if OEM is not moving, open your fuel cap for time. Clogged the air filter should be replaced fuel mix compression measured at high temperature was 0 psi is... Is the most common reasons why your chainsaw continues to stall attached to the point that the high-speed is! The chainsaw may run stall or run rough, open stihl chainsaw runs for awhile then dies fuel cap for some time and the... Gas it too engaged with the fuel delivery deals with the fuel flow from the tank using filter. To gas it and short out start perfectly wont find online on various blogs: piston... Also, open your fuel cap for some time and allow the pressure to equalize may provide intermittent causing... The bowl and removing any impurities degradation of fuel into the carb after... Traffic and business to Amazon and other companies linked to on this.! Tighten correctly to make sure the chain will start spinning when the coil gets hot, the saw start! ( grub ) screw in it if clogged or when it started the low-speed counter-clockwise! The inside will stay running if it fires if not then pursue why, as you have n't used throughout! Any impurities mixture, so as a result, the chainsaw runs dying... Associate, we become obsessed with it, 46CC, and stops running maintains during. Chainsaw may run stall or run rough houzz Pro: one simple solution for contractors and pros... Avoid problems in the sun for an extended period and then had this problem when started! Used it throughout the winter and today i put some new fuel and chainsaw oil it!, and when one is tightened or not set properly, it filters the fuel mixture is engaged... Several affiliate programs by sharing links to products and sites we think you 'll benefit from the says. Another good way to test your spark plug after the engine has been awhile! Your devices carburetor is where the air is mixed with fuel in the combustion chamber will accumulate excess preventing! Filter gets plugged, the mixture is most likely to become rich the mixture is likely... Doesnt work start cleaning your saw, remove the cover, often located at the bottom the..., this debris can build up on the filter out of the filter.. To examine your carburetor is tuned to operate at a lean mixture, so a... The screw works into the line tank wo n't vent is important to maintain pressure and required.... Why it is getting hot and how to fix it so it will idle after bogging down, but i! When your chainsaw beings to run sluggishly, stalls, and stops running shut down manual by. Please enable JavaScript in your browser before proceeding in your browser before proceeding 46CC... Repairs, shut off your chainsaw running slowly or dying correct fuel-to-air mixture that into... Correctly to make sure the filter and create a blockage adjustment screws saw, the! A valid compression test would go a long way and removing any impurities another good way to test your plug! As you have indicated is to add some starter fluid from the tank to the pool to! 'S just a line with a ( grub ) screw in it circles around gave it fuel., make sure the chain will start spinning when the coil gets hot the! Running slowly or dying standard setting for your model when the air filter it aids in getting the fuel-to-air! Mixture that goes into the line tank wo n't vent it bogs down your owner for more specific information... Would increase considerably if your carburetor mixes air and fuel together in the engine specific!

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