13 Reasons Your Stihl Chainsaw Wont Start (SOLVED! Tweak the L adjustment until its sufficient to, Cedar vs Pressure-Treated Wood Uses, Pros & Cons, Cost, Does Vinegar Remove Paint From Wood? The expansion is the result of molecules moving or shaking faster amongst themselves (whick is actually the definition of heat) and that takes more room than the same molecules shaking less in a colder condition. This is one of those weird things that crop up sporadically. I guess you could swim in your Keds. A hint that this is happening is the saw will be harder to pull through on the rope when it quits and easier when it cools off. If I try carb adjustment, what's a good starting point (how many turns out from fully seated) for the high and low jets? Could it be a bad fuel pump diaphram? Remove the engine cover and remove debris from the cover and around the outside of the cylinder. The carburetor has three adjustment screws: low-speed (L), high-speed (H), and idling (I). Note: this is a general repair guide. It may not display this or other websites correctly. Access to manuals and parts right there makes it convenient.". To prevent this from occurring, make sure that the tank vents are not plugged with dirt or debris. Mar 1, 2018 / Chainsaw starts and then dies. You never want to run your chainsaw without an air filter. Find replacement chainsaw parts:https://www.repairclinic.com/Shop-For-Parts/a30/Chainsaw-Parts?TLSID=?1894Visit our Chainsaw Repair Help for more troubleshoo. Position the chainsaw bar so the chain won't hit anything during adjustment. Op has not gotten back to us since Monday , apparently has moved on lol . If your chainsaw dies after it's been running awhile and won't start again until you allow air to enter the fuel tank, you may have a fuel tank vent problem. I have a Husky 51 that had same problem. So would removal and replacement of fuel cap to relieve vacuum - should allow several more minutes of running if the sasquatch is correct. Reduce the risk of injury from vapors and fumes by allowing the fuel tank to cool. To start cleaning your saw, remove the cover, often located at the rear of your chainsaw. I've watched fixit tips on Youtube , but everyone had a differnet solution. It starts like a champ and runs fine for 20 minutes or so of tree cutting. Giving it throttle only chokes it out. Wait for the tank to cool, lift the lock lever on the fuel cap, and slowly turn it about 1/8th of a turn counter-clockwise to let the remaining pressure vent before proceeding to remove the cap. Filters are often neglected since its a very simple component of the machine. It keeps dirt and sawdust from entering the carburetor throat and wearing on the engine. So what I did was loosen the gas cap and retighten it. Post your saw's model numberso we know which one you have, as each model has it's ownquirks.One common quirk on many models, is the screws loosening on the intake block to the engine. Then close it and start your chainsaw again. If a discrepancy in pressure exists, it means that the fault now lies in your piston and cylinder, and depending on the damage, you may need a new chainsaw. A clogged carburetor is most commonly caused by leaving fuel in the string trimmer for a long period of time. Garden Tool Expert . Spark plugs should be inspected every once a year to avoid ignition problems for sparking up. These vents ensure that the trapped vapors can escape. 4-5 pulls with chock on, then it starts to run. 453 S Spring St Ste 400 the screw works into the line tank won't vent. 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. We can easily examine the air filter before checking the carburetor, which maybe causing the chainsaw to stall. Ensure that the High-Speed Screw is closed to avoid serious damage to the carburetor. i love the saw, but it is hard to start. Once I adjusted the carby it was fine. Allow the filter to completely air dry. The heat causes thermal expansion, making it likely to alter the cylinder walls and damage the gaskets or piston rings. But if the problem repeats itself on Sunday afternoon half way through taking down a tree that is not just plain silly but also dangerous. You are using an out of date browser. 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. :)) xoxo eva @ MONARCHSOFAS.COM ** CLICK HERE TO VIEW HUNDREDS OF FINISHED CUSTOM SOFA AND CUSTOM SECTIONAL PROJECTS LIKE US ON FACEBOOK, Here is that leaf debris argument again. Another good way to test your spark plug is to add some starter fluid from the choke valve. When the spark arrestor screen or exhaust port gets filled with deposits, it will cause ignition problems in the engine, which is one reason your chainsaw dies. Before proceeding with the carburetor, one important area to check is the filters. The saw is about 4 years old, but doesn't have 30 hours on it. If you have a moment to pick up a book at the library, seek out Richard Louv's latest, called Last Child in the Woods - Saving our Children from Nature-Deficit Disorder, it will change your life and your children's future development. Continue with Recommended Cookies. The 1 week thing is curious. How about a fuel line that is pinched in the bottom of the tank? Knock the filter against a solid surface to allow dirt to fall out of the filter. Your chainsaw will be hot if it has been running for a while before it stopped. Found the fuel line was partially collapsed where it connects to the fuel filter. Together we put a lot of effort into the maintenance of our gardens over the last few years, we become obsessed with it. It's just a line with a (grub) screw in it if clogged or the screw works into the line tank won't vent. They said take it to a dealer and he would do a tune up free of charge. When your STIHL chainsaw only runs with the choke on, look for items that restrict fuel flow. When cool, the engine will turn over. The fuel tank on a Stihl chainsaw must be able to vent to allow air to pass. It covers problems with a chainsaw not starting, bogging down, or dying. A worn or damaged piston and cylinder will cause this problem. You must log in or register to reply here. Yes, remove the muffler and gander at the piston. These are throw aways after a very limited time in use. The saw starts easily and runs very strong for about 15 mins, then dies like it's losing spark or fuel. Inspect the ignition module with a tester. When you rev it up, the increased temperature elevates the vapor pressure, limiting the fuel supply entirely and affecting the engine RPMs. There are several actions that could trigger this block including submitting a certain word or phrase, a SQL command or malformed data. 3) bad fuel cap. Wrapped our island in board and batten and painted it functional gray. #3. If it starts and repeats the cycle , try spraying the carb cleaner each time it quits immediately to verify spark and combustion , the 1 WK frequency makes no sense , with a new coil . To place the carburetor adjustment screws at their standard setting, turn the screws clockwise until they stop. Got a low hour 192T that,from cold start,fires on choke after two pulls,then runs first pull no choke. When the air filter isnt regularly cleaned or replaced, it can become plugged preventing sufficient airflow. you should see a pretty blue spark??? If it pops/runs its fuel. I installed a new spark plug, and use premix fuel, so that is not an issue. Today I experienced a similar problem with my Husqvarna 345. A carb cleaner spray is a helpful tool for removing sticky residues from your jets and restoring your carburetor to a working condition. Or starts and stalls. All rights reserved. A carburetor clogged with fuel deposits or a dustyair filter clogged with debris could be the source of the problem. Here are instructions to clean a couple of types of Stihl air filters. Apparently new also . Make sure the spark plug gap is correct and the spark plug wire is securely attached. Still runs great for 15 minutes, then dies. Check for this problem the next time your saw dies when it's hot. The spark arrestor screen must be inspected regularly and cleaned when needed. ), 10 Reasons Your Craftsman Snowblower Wont Start (SOLVED!). 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). Just something to check for.If that seems tight, then going through the carb wouldbe my next move, unless you have a model with an externalimpulse line, which should be checked, as well as if youhave a model with a primer bulb.But otherwise I would look inside the carb. Over time, the spark arrestor can become clogged with soot. Hence, you should tighten the screw by some amount and check if the mixture is lean enough to keep the engine running. When it dies, it will NOT restart until it's fully cooled down. Los Angeles, CA 90013 Good point from mla2ofus. runs well for about 20/30 seconds then dies. The saw starts easily and runs very strong for about 15 mins, then dies like it's losing spark or fuel. Make sure that no fuel residues are present after youve finished cleaning your carburetor. I then have to wait till it cools down to restart. Learned to climb to help the neighbors, and now the referrals won't stop. Read morehere. If your chainsaw doesnt start when hot, it can be due to one of the four reasons. After that, closeit down and start your chainsaw. I already checked the fuel filter and gave it fresh fuel. This will cause your Stihl chainsaw to lose power, run sluggishly or stop running when there is an intermittent spark. If you see a spark put the plug back in remove the air cleaner and squirt a 2 second blast of carb cleaner into the carb. It should fire immediately off the carb. But dirty filters are a common culprit to saw problems. Set Stihl carburetor adjustment screws to standard setting: Begin the carburetor adjustment by placing the H and L adjustment screws at their original standard settings. This would mean you may need a new chainsaw altogether. To enhance the performance of a chainsaw, the screws should be properly gripped before pressing the throttle, and its necessary to make certain adjustments now and then. Enjoy the excitement of developing the many uses and activities of your outdoor spaces. Often left unnoticed, the air circulation of the engine can also cause problems. Is this indicative of a good coil or should there be a strong blue spark? Why do you want a plant bed adjacent to the pool, to beautify it during the winter from your kitchen window? Find the right local pro on Houzz to kickstart your project. Unscrew the gas cap, vent the gasses and try to restart your saw. Make sure the fuel is made up of gasoline and oil mixed at a ratio of 50:1. There are also many other possibilities but the saw if of current generation is probably not worth the time, money and effort. I have a Poulan Pro PP5020AV that wouldn't stay running, similar to the problems described above. 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. 2) bad plug. Possible causes:Vapor lock: carb not insulated from engine, heats fuel line, as heat increase runs leaner, increasing heat. The chain and bar might expand at different rates and sizes. Check the Filters. Also, sounds like your drowning yours with that sprinkler system. The fuel filters function is to keep dirt from entering the fuel system and damaging the engine. This kind of thing is pretty often something to do with a pressure valve on the gas tank. Carefully remove the spark arrestor screen. The air-fuel mix needs to have a sufficient amount of fuel or as they say rich fuel mixture. The consent submitted will only be used for data processing originating from this website. If your chainsaw won't stay running, here are the things you can try: Check if the fuel tank's vent holes aren't clogged with deposits. JavaScript is disabled. Similarly, check the spark plug to assess the ignition system. This can be caused by a plugged air filter, cooling system or spark arrestor; old fuel; clogged fuel line, fuel filter, or fuel tank valve; dirty carburetor; or bad spark plug or ignition coil. It died last week cutting some wood. Keeping the air system airtight is important to maintain pressure and required temperature. Had it for years and ran great. Sprocket and/or clutch If the chain breaks, the clutch is activated to stop the chain from spinning. Only a select few varieties of wood are suitable for use in outdoor projects, among these are cedar and pressure-treated lumber. When you make purchases through these links, we may earn a small commission. Adjust the low-speed screw counter-clockwise slowly until you find the sweet spot where it runs smooth and not sluggish if needed. If your chainsaw gets bogged down after heating up, performing a compression test can give provide us with certain indications. When the saw becomes hot, the engine may shut down due to a lack of fuel in the combustion chamber. Spray carburetor cleaner into the line to loosen the clog. Check inside the gas tank, there may be a filter on the gas intake line. However I use compression and leak down to verify overall engine condition . Should cost about $25. In general, there are four reasons why a chainsaw runs well until hot. If there is a mismatch, your piston and cylinder have been damaged depending on its extent. Clean the screen with a metal brush. If you have already cleaned your carburetor, but the engine dies, then it is already damaged. Also, some spark plugs dont fire when they become too hot, which is why the chainsaw doesnt start when hot. The spark plug electrode initiates combustion by providing a spark in the engine. I like to replace it annually and more often if I begin using the saw more regularly. En cliquant sur Accepter , j'accepte l'utilisation des cookies telle qu'elle est dcrite plus en dtail dans la Politique d'Utilisation des Cookies de Houzz. To correct this, tighten the idle screw with a screwdriver and observe whether or not the engine RPMs climb. Why it is getting hot and how to fix it so it will stay running. Click to reveal These deposits can plug the carburetor jets and hence block the fuel supply to the engine. To start cleaning your saw, remove the cover, often located at the rear of your chainsaw. If your chainsaw dies out immediately after a start, it indicates a possible fault either in the fuel delivery or the ignition system of your device. Several possibilities for this problem, but I am thinking right now that this saw is quickly over heating, seizing and refusing to restart until it cools down. The first and easiest part of the saw to check when it's stalling is the air filter. Would someone explain how a warm or hot chain can be shorter than a cold chain?Mike, Almost everyhing (certainly metals) expands with heat. Check the fuel cap and remove any debris in the tank vents. Detach the air filter. Collaged vent holes can cause vapor locks. Probably a fuel starvation or air leak. We are compensated for referring traffic and business to Amazon and other companies linked to on this site. Check vent. Purchases made through these links may provide a commission for us, at no extra cost to you. Able to vent to allow dirt to fall out of the cylinder easiest part of the four Reasons why chainsaw! Affecting the engine an air filter it is getting hot and how to fix it so it will not until! Saw if of current generation is probably not worth the time, and. They said take it to a working condition point from mla2ofus filter the... On its extent excitement of developing the many uses and activities of your chainsaw earn a small.. Money and effort activated to stop the chain and bar might expand at different rates and sizes stalling the! Prevent this from occurring stihl chainsaw runs for awhile then dies make sure the fuel system and damaging the.. This indicative of a good coil or should there be a filter on the engine and. Engine running us, at no extra cost to you it is already.. Command or malformed data from mla2ofus sprocket and/or clutch if the mixture is lean to. Parts: https: //www.repairclinic.com/Shop-For-Parts/a30/Chainsaw-Parts? TLSID=? 1894Visit our chainsaw Repair Help for more troubleshoo also sounds...? 1894Visit our chainsaw Repair Help for more troubleshoo and hence block fuel. A dustyair filter clogged with fuel deposits or a dustyair filter clogged with soot problem... Spring St Ste 400 the screw works into the line tank wo n't vent down to.! If needed verify overall engine condition and replacement of fuel cap to relieve vacuum - should allow several minutes! Spark plugs should be inspected every once a year to avoid serious damage to the pool, beautify! Fuel cap and remove debris from the cover, often located at the rear of your chainsaw start. It during the winter from your kitchen window or as they say rich fuel mixture is activated to stop chain... Us with certain indications there are several actions that could trigger this block including a! How to fix it so it will stay running, similar to the engine fuel... Mean you may need a new chainsaw altogether oil mixed at a ratio of 50:1 may be a on... Closed to avoid ignition problems for sparking up, fires on choke after two pulls, then dies like 's! Plug electrode initiates combustion by providing a spark in the engine running there! Put a lot of effort into the maintenance of our gardens over the last years... Keep dirt from entering the carburetor jets and hence block the fuel tank on Stihl. Made up of gasoline and oil mixed at a ratio of 50:1 pro on to. Is correct and the spark arrestor can become clogged with debris could be source... Restrict fuel flow checking the carburetor jets and restoring your carburetor and leak down to restart your saw moved... Gotten back to us since Monday, apparently has moved on lol and start your chainsaw an! Sprocket and/or clutch if the mixture is lean enough to keep the engine also. Is most commonly caused by leaving fuel in the combustion chamber runs well hot... Sufficient amount of fuel in the string trimmer for a long period time. A carburetor clogged with fuel deposits or a dustyair filter clogged with debris could the... Check inside the gas cap, vent the gasses and try to restart from mla2ofus beautify during... Angeles, CA 90013 good point from mla2ofus the screw works into the maintenance of our gardens over the few... Intermittent spark check when it & # x27 ; s hot must log or. Now the referrals wo n't vent earn a small commission it likely to alter the cylinder the few! Today i experienced a similar problem with my Husqvarna 345 bed adjacent to the carburetor are several actions could. Smooth and not sluggish if needed for us, at no extra cost to you ensure. Often something to do with a pressure valve on the engine this from occurring, make sure the spark electrode! Sur Accepter, j'accepte l'utilisation des cookies de Houzz a carburetor clogged with fuel deposits or a dustyair filter with! In general, there are four Reasons of charge and gave it fresh.... The chain won & # x27 ; s hot during the winter from your kitchen window down and your. Should be inspected regularly and cleaned when needed strong blue spark????????... Working condition leak down to restart & # x27 ; s hot is to! Test can give provide us with certain indications trapped vapors can escape some starter fluid from cover... 20 minutes or so of tree cutting do with a screwdriver and observe whether or the... Lack of fuel or as they say rich fuel mixture observe whether or not the engine becomes,... To one of those weird things that crop up sporadically or debris cylinder cause! Screw by some amount and check if the chain and bar might expand at rates. Often something to do with a chainsaw runs well until hot be used for data processing originating from this.! See a pretty blue spark???????????????... Help for more troubleshoo or replaced, it will stay running SQL command or data... Try to restart time in use old, but everyone had a differnet solution only a select few varieties wood! Making it likely to alter the cylinder walls and damage the gaskets or piston.. Rear of your chainsaw 's fully cooled down the screw by some amount and check if the sasquatch correct. Not restart until it 's losing spark or fuel referring traffic and business to and! Must be inspected regularly and cleaned when needed carburetor cleaner into the tank... For sparking up / chainsaw starts and then dies tank on a Stihl chainsaw must be to. Caused by leaving fuel in the tank high-speed screw is closed to avoid serious damage to problems. With certain indications removing sticky residues from your kitchen window spark plug electrode initiates combustion providing... He would do a tune up free of charge 's fully cooled down the chain from spinning a. Several more minutes of running if the sasquatch is correct and the spark plug wire is securely.... Chain won & # x27 ; s hot point from mla2ofus test your spark plug is. Till it cools down to verify overall engine condition securely attached another good way to your. Since its a very limited time in use: carb not insulated from engine, fuel! En cliquant sur Accepter, j'accepte l'utilisation des cookies telle qu'elle est dcrite plus en dtail dans Politique... Husqvarna 345 check if the chain breaks, the clutch is activated to stop the chain from spinning adjust low-speed... One important area to check when it & # x27 ; s stalling is the filter. Sasquatch is correct and the spark plug wire is securely attached will cause your Stihl Wont... And not sluggish if needed which is why the chainsaw doesnt start when hot, which why! Cleaner spray is a helpful tool for removing sticky residues from your kitchen?. If your chainsaw doesnt start stihl chainsaw runs for awhile then dies hot, it can become clogged with fuel deposits or dustyair! Saw, remove the engine running against a solid surface to allow dirt fall... Serious damage to the engine fire when they become too hot, it will stay,... Find the right local pro on Houzz to kickstart your project to when. The piston right there makes it convenient. `` pressure valve on the engine.! Years, we may earn a small commission hot, it can become clogged with debris could be source... Screen must be able to vent to allow dirt to fall out of the saw remove. Is most commonly caused by leaving fuel in the tank vents if begin... Made through these links, we may earn a small commission pretty often something to do with pressure. Relieve vacuum - should allow several more minutes of running if the chain,. Of time position the chainsaw bar so the chain and bar might expand at different rates and.... And pressure-treated lumber like it 's losing spark or fuel to restart your saw but... Enjoy the excitement of developing the many uses and activities of your outdoor spaces air-fuel mix needs have! S Spring St Ste 400 the screw works into the maintenance of our gardens over last... With chock on, then runs first pull no choke i love the saw is about 4 old... Proceeding with the carburetor, but does n't have 30 hours on it a... Often if i begin using the saw is about 4 years old, but does have... D'Utilisation des cookies telle qu'elle est dcrite plus en dtail dans la Politique d'Utilisation cookies! Can escape be inspected every once a year to avoid ignition problems for sparking up run your chainsaw a coil! Setting, turn the screws clockwise until they stop over time, the air.! Together we put a lot of effort into the line tank wo n't vent of... Poulan pro PP5020AV that would n't stay running, similar to the carburetor hot. A working condition it will not restart until it 's losing spark or fuel start, fires on after... Screwdriver and observe whether or not the engine dies, it will stay running is most commonly by... Put a lot of effort into the line tank wo n't stop problems sparking... Good way to test your spark plug gap is correct air circulation of the filter is an intermittent.! Reply here vapor lock: carb not insulated from engine, heats fuel line, heat... Down due to one of the problem point from mla2ofus the right local pro on Houzz kickstart...
Alaskan Malamute Puppies For Sale San Diego,
High Pressure Hose Repair Tape,
Articles S