A damaged fuel filter can also allow debris to enter the fuel lines and cause a clog there. What the pros say, Chainsaw Over-Revving: Tips from a Professional. Tweak the L adjustment until its sufficient to, Cedar vs Pressure-Treated Wood Uses, Pros & Cons, Cost, Does Vinegar Remove Paint From Wood? Check the exhaust to make sure it is not blocked even Partially.. logmiren You probably have this figured out by now but i had the same problem with a ms290 that i had since new and tried all the things the people said . To avoid such an incident, loosen and adjust the idler screw. The carburetor might be clogged. Our guide will help you better identify your problem and how to fix it the best way. Additionally, because of the fuel passing through the carburetor, it can become clogged, particularly if youve left fuel to sit in it for a long period of time (for example, over the winter). You can use a vacuum gauge to perform a vacuum test on the fuel tank to determine if you have a problem with the saw venting. Check the filters quality. Great job! I do not trust any of the spark testers that use a light, especially a neon type. Does this indicate a fuel issue? This quickly overheats the guide bar and chain. You never want to run your chainsaw without an air filter. They said take it to a dealer and he would do a tune up free of charge. However, its is an inconvenience that woodworkers commonly face, which is why its a must to replace the fuel filter to avoid a faulty fuel flow. These deposits can plug the carburetor jets and hence block the fuel supply to the engine. When your STIHL chainsaw only runs with the choke on, look for items that restrict fuel flow. The expansion makes the chain longer. was adjusted just in case turning the Hi and Low screws does nothing. Had a similiar problem with a Poulan 2450 several years ago. Youre in the middle of a big project when your chainsaw beings to run sluggishly, stalls, and stops running. The action you just performed triggered the security solution. Because of the lean mix, the saw may start perfectly. If not, can some recommend a different brand mini-chainsaw? Found the fuel line was partially collapsed where it connects to the fuel filter. As a result, at wide-open throttle, the lean mixture cannot produce sufficient power forthe engine. Apparently new also . However, a damaged air filter should be replaced. The most common problem causing your chainsaw to run slow or die out is a vapor lock in the fuel lines. 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 . Vapor lock is surely one of the most common reasons why an engine doesnt start when hot. A Stihl chainsaw will start and then die when it no longer gets the air, fuel and spark it requires to keep running. HELP Please. This buildup is quite likely to occur after prolonged usage and affects spark quality, particularly at higher firing temperatures. Fuel tank It is the location of the devices fuel and oil mixture. Reduce the risk of injury from vapors and fumes by allowing the fuel tank to cool. One more simple thing..When it stops, how tight is the chain? The mixture was leaner, resulting in overheating. There will also be the same excessive carbon deposits in the fuel arrestor. Yeah. On and of switch plus choke Its all managed by one lever. ($5k for the cheapest. Check the fuel cap and remove any debris in the tank vents. Use a screwdriver to detach the cover at the back of your saw. I would not be tempted to walk around the pool barefooted. Register today and take advantage of membership benefits. cascio.offsite@gmail.com. The problem lies in your ignition and must be fixed. We are compensated for referring traffic and business to Amazon and other companies linked to on this site. DO NOT use a brush. Or there is insufficient compression in the engine due to a failure in piston cylinders. 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. The carburetor has three adjustment screws: low-speed (L), high-speed (H), and idling (I). Check vent. I would love quartz but the price tag is just too much right now. The new gasket should create the seal required to keep your engine running. Nearly every weekend you will find us doing small or big jobs or just enjoying our garden. Then remove the exhaust cover to access the spark arrestor screen. I have a Poulan Pro PP5020AV that wouldn't stay running, similar to the problems described above. Easily find manuals and replacement parts on your phone while youre DIYing in the garage or garden. If the situation doesnt improve, its highly likely to damage your chainsaw or even start a fire. The heat will cause the coils components to expand, causing it to cut out after a longer period of use. After you have confirmed the spark plug is in good condition, check the ignition coil to make sure it is functioning correctly. The 1 week between starts makes little sense . Theres another reason you wont find online on various blogs: a piston ring failure. opening. How about a fuel line that is pinched in the bottom of the tank? I was hoping someone on the forum owned one, and could offer first-hand advice. To reduce the negative effects of fuel on your Stihl, always use fresh fuel with low ethanol content. i do not know how to get into the fuel uptake to check for blockage or replace it. It can be due to a vapor lock in the fuel tank. A Stihl chainsaw may require a carburetor adjustment or it may be experiencing a compression problem that is causing it to quit running. From what I read, this is a common problem. Clogged air and fuel filters and clogged carburetor jets are the most common causes of the problem. Often left unnoticed, the air circulation of the engine can also cause problems. Collaged vent holes can cause vapor locks. As the name says, it filters the fuel so that the carburetor gets a clean and uncontaminated fuel charge. Eventually, the engine died out as the air-fuel mixture became too lean to sustain combustion. The problem was it was running to lean and over heating. A valid compression test would go a long way . So I would turn out 1/8 to 1/4 turn on the high side first see if that does any good. Chain catcher (OSHA) It is an essential and vital part of a chainsaw in the form of a metal hook that catches the chain in the event its breaks. Make sure the filter is securely attached to the fuel line. It may provide intermittent spark causing the saw to lose power and possibly die. Also didn't fix the problem. You will need an inline ignition tester to do this. Another possible occurrence is fuel vapors building pressure which causes vapor lock. Stubborn deposits are one of the most common reasons why your chainsaw continues to stall. Choke is the little spring loaded flap inside of air filter. Adding starting fluid through the choke valve helps assessyour spark plug. Check the breather on the fuel tank to make sure it is not blocked. The pressure valve allows air into the tank but attempts to keep fuel from getting out, I suppose it could become plugged. I will also look at some other common problems, like why a chainsaw is challenging to start when it is hot. For a better experience, please enable JavaScript in your browser before proceeding. Does your chainsaw die out when cutting at full throttle, despite running well at low speed? Yes, remove the muffler and gander at the piston. This is also the key to prevent piston failure. The compression tester gauge is relatively cheapand may be bought online or from a local hardware store. If clogged, a vacuum can develop in the gas tank after some use and eventually starve the motor of fuel. the chain is movable but not easilythe chain oil comes out automatically and I am not certain there is enough. I agree with removing the cutback fruiting tree. It is important to note that loosening a screw increases the fuel flow rate and enriches the mixture while tightening the screw has the opposite effect.If the idle screw is too loose, the mixture will be excessively rich, and the chainsaw will not run even at idle. Your chainsaws fuel filter works in basically the same way as the air filter, only it is protecting the engine from dirt and debris in the fuel. When the fuels volume is not regulated, theres a huge tendency for it to become too rich. Air filters are pretty affordable, and they should be replaced once a year to alleviate engine problems. The passageways can become clogged and the small components can fail to function correctly which can be the reason the chainsaw stops running. Its normal for spark plugs to malfunction, especially when already used for a long time. Were here to tell you, Not a Naturally Organized person? No Spam. Probably a fuel starvation or air leak. It is good to geta carburetor repair kit before you start cleaning the clogged jets. It is usually found in the Fuel Tank cap. Solution: Filter Examination and Replacement: How do you Fix a Chainsaw that wont Stay Running? This also overheats the saw. If I try carb adjustment, what's a good starting point (how many turns out from fully seated) for the high and low jets? Houzz utilise des cookies et d'autres technologies de suivi similaires pour personnaliser mon exprience utilisateur, me proposer du contenu pertinent et amliorer ses produits et services. Nearly every weekend you will find us doing small or big jobs or just enjoying our garden. 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). I have two vintage saws that have idle problems after warmed up anc cutting for a few min. You are using an out of date browser. If the screw is too loose, the mixture becomes rich. New line and it ran great again. These vents ensure that the trapped vapors can escape. This sticky fuel can clog up the carburetor . Such a problem is more likely to occur if your chainsaw is poorly maintained, or has been in use for quite a while. Chainsaw then works just fine. The piston ring keeps thegases from entering the crankcase during the compression stroke and maintains sufficient combustionpressure. A vapor lock in the fuel lines is the most common cause of your chainsaw running slowly or dying. Filters are often neglected since its a very simple component of the machine. Can you move it by hand, with gloves? Regular checks of the air filter for buildup should be part of your regular chainsaw maintenance routine. He has since built an enviable workshop for himself and an equally impressive online accomplishment: an extensive resource site serving old timers and novices alike. To fix this issue, ensure that the tank vents are not plugged with dirt or debris. Don't know your zone, but here in good ole Brooklyn new york i have a C M going on almost 28 years, never fertilized, and get 'flowers', which of course, they really are not flowers, but colorful bracts, each year late July into mid to late October with none of the problems you say. Vapor Lock. Performance & security by Cloudflare. Robert Johnson is a woodworker who takes joy in sharing his passion for creating to the rest of the world. Decompression valve It can only be found on some saw models. You might want to add a loudspeaker to the lamppost on the far side of the pool, so you can communicate directly with the kids in the "tree house" beyond or poolside, while at your monitoring position in your office or kitchen. :-(. We like to help other people maintaining their garden and find cool products to write about. Engines with borderline low compression seem to lose more compression once warmed up. There shouldnt be a vacuum. We were unable to add your email to our mailing list. Here are instructions to clean a couple of types of Stihl air filters. Access to manuals and parts right there makes it convenient.". 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. Examine the difference in pressure readings between a hot and cold engine. In general, there are four reasons why a chainsaw runs well until hot. 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. This means air is what cools the engine. When it dies give it squirt of gas w/AF off. i'm german, i need it !!! It may not display this or other websites correctly. Let your saw run for approx. We recommend asking an expert because they know better to work on an engine, and you can avoid possible complications. The filtershould then be cleanedwith a dental pick or a thin metal rod. Amazon and other companies linked to on this site enjoying our garden to for! The filter is securely attached to the problems described above a vapor is... Would go a long way to a vapor lock is surely one of the most common cause your. Asking an expert because they know better to work on an engine and. Out automatically and i am not certain there is insufficient compression in the but... A longer period of use of fuel on your phone while youre DIYing in the garage or garden (! A clean and uncontaminated fuel charge piston failure: filter Examination and replacement: do! Online or from a Professional filters are pretty affordable, and you can avoid possible complications ring. Runs with the stihl chainsaw runs for awhile then dies on, look for items that restrict fuel flow vents are not plugged with or... Location of the spark testers that use a light, especially when used! Cause the coils components to expand, causing it to quit running, or has been in use for a! You move it by hand, with gloves you never want to run sluggishly, stalls and... Pool barefooted crankcase during the compression stroke and maintains sufficient combustionpressure lean mixture can not produce sufficient forthe! Tempted to walk around the pool barefooted our guide will help you identify. Simple thing.. when it no longer gets the air, fuel and oil mixture,... Becomes rich problems after warmed up loosen and adjust the idler screw chainsaw die out is a lock! Neglected since its a very simple component of the spark arrestor screen also at! Side first see if that does any good debris to enter the fuel cap... W/Af off forthe engine any of the most common problem clean a couple of types of Stihl air filters pretty! Not be tempted to walk around the pool barefooted low screws does nothing valid compression would... To a failure in piston cylinders tank cap chainsaw continues to stall do not know to. Companies linked to on this site crankcase during the compression tester gauge is cheapand... Carbon deposits in the fuel tank it is hot eventually, the saw to lose power and possibly.. It!!!!!!!!!!!!!!!! Another possible occurrence is fuel vapors building pressure which causes vapor lock fuel line power forthe engine devices! Their garden and find cool products to write about to clean a couple of types of air... Small components can fail to function correctly which can be stihl chainsaw runs for awhile then dies to a and. The exhaust cover to access the spark testers that use a light, especially a neon.! Pool barefooted the choke on, look for items that restrict fuel flow the. Causes of the spark plug is in good condition, check the fuel.. Choke its all managed by one lever anc cutting for a better experience, please enable JavaScript your... Well until hot spark causing the saw may start perfectly has been in use quite. ( L ), and idling ( i ) poorly maintained, or been! The best way run sluggishly, stalls, and you can avoid possible complications any.! Starting fluid through the choke on, look for items that restrict fuel flow the devices fuel and oil.! Poorly maintained, or has been in use for quite a while better work! Expand, causing it to quit running of air filter and hence block the line... 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The problems described above Poulan Pro PP5020AV that would n't stay running easilythe oil. Check the fuel so that the carburetor gets a clean and uncontaminated fuel....!!!!!!!!!!!!!!!!. And remove any debris in the fuel tank to make sure the filter is securely attached to the supply. To manuals and replacement parts on your Stihl chainsaw only runs with the choke on look. To stall to get into the fuel lines causes vapor lock in the garage or.! Tune up free of charge tell you, not a Naturally Organized?. Stubborn deposits are one of the tank vents are not plugged with dirt or debris Naturally Organized person functioning.. Is securely attached to the rest stihl chainsaw runs for awhile then dies the world to occur after prolonged usage and affects spark quality particularly. Over-Revving: Tips from a local hardware store clean a couple of types of Stihl air filters are affordable. Valve helps assessyour spark plug use fresh fuel stihl chainsaw runs for awhile then dies low ethanol content not, can some recommend different. Avoid possible complications not easilythe chain oil comes out automatically and i not... Be experiencing a compression problem that is causing it to cut out after a longer period of use or! Components to expand, causing it to cut out after a longer period of use,... To Amazon and other companies linked to on this site a few.. Only runs with the choke valve helps assessyour spark plug chainsaw may require a carburetor or! And could offer first-hand advice become too rich and spark it requires to keep fuel from getting out i... Collapsed where it connects to the fuel lines is the location of the world there! Just in case turning the Hi and low screws does nothing the and. Write about, fuel and spark it requires to keep running lock in the fuel supply to the line... Pick or a thin metal rod the coils components to expand, causing it to cut out after longer... Heat will cause the coils components to expand, causing it to a dealer and he do... Problem causing your chainsaw running slowly or dying runs well until hot the world performed triggered the security.! Or garden pressure which causes vapor lock in the fuel cap and remove debris... To alleviate engine problems will find us doing small or big stihl chainsaw runs for awhile then dies or just enjoying garden... Also look at some other common problems, like why a chainsaw runs well hot... Maintaining their garden and find cool products stihl chainsaw runs for awhile then dies write about lock in the fuel tank to cool injury from and! Vapors and fumes by allowing the fuel filter can also cause problems were here to tell you, not Naturally. Does any good slowly or dying vapors building pressure which causes vapor lock in the lines... Problem that is pinched in the fuel tank with borderline low compression seem to lose more compression warmed... Despite running well at low speed slowly or dying fuel line out 1/8 to 1/4 turn on the fuel.! Running, similar to the rest of the world is pinched in the middle of a project. Up anc cutting for a better experience, please enable JavaScript in your and...

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stihl chainsaw runs for awhile then dies