Engines with borderline low compression seem to lose more compression once warmed up. so if anybody can help with hot idling problem I would appreicate it. Also, the carburetors adjustment screws need to be tuned if it stalls. 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. Could it be a bad fuel pump diaphram? Fuel filter maintenance and replacement should be a regular job. It would equalize after sitting for a while and run good again later. Okay, but when you put in some pedestrian pavement around the pool, give the plant beds a good edging, and widen the pavement occasionally to add a bench or two for the towel and the Keds (and the smartphone, of course). The spark plug in your chainsaw ignites the air/fuel mixture in the combustion chamber. 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). How long the chainsaw runs before dying depends on how badly clogged the air filter is. The heat causes thermal expansion, making it likely to alter the cylinder walls and damage the gaskets or piston rings. Enjoy the excitement of developing the many uses and activities of your outdoor spaces. Why does my Chainsaw Die at Full Throttle. How about a fuel line that is pinched in the bottom of the tank? Similarly, adjust the other screws, namely the L and H screws, until the RPMs reach an optimumposition that prevents the saw from dying out. Starts,then dies straightaway,then wont start. If the electrode on your spark plug appears to be worn out, replace it. I've changed the fuel out also. If your saw dies at idle, turn the idle screw clockwise until the chain just starts to move. Fuel tanks can often get vapor locked nowadays due to some ingredients present in the gas. Avoid running your engine on a lean fuel setting as this overheats specific engine components and makes them prone to failure. The air filter is easily located. While pulling the starter recoil rope, you may notice a loss of compression. #3. This is also the key to prevent piston failure. i had the carb kit routine done last season as well. I think most saws start out at 1 trun to 1 1/2 turns from seated. The three carburetor adjusting screws are located on the clutch side of all Stihl chainsaws. Also, check the carburetor and inspect for any leakage/fuel blockage. Fix your Lawnmower with our Lawnmower Troubleshooting tool. Crape Myrtle stops growing after spring. I will also show how to fix a chainsaw that wont stay running. The most common problem causing your chainsaw to run slow or die out is a vapor lock in the fuel lines. 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? Ensure that the High-Speed Screw is closed to avoid serious damage to the carburetor. This can be the result of worn crankshaft seals, worn piston rings, or damage to the piston. :)) 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. This eventually lowers the engines compression, and it doesnt start as a result. 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. To prevent this from occurring, make sure that the tank vents are not plugged with dirt or debris. Position the chainsaw bar so the chain won't hit anything during adjustment. Old fuel is a big reason why a Stihl carburetor will stop working. Can you move it by hand, with gloves? Check inside the gas tank, there may be a filter on the gas intake line. Also, it is quite likely in some cases that the ignition module fails to operate at higher temperatures. Thus my advice to fog the engine with some carb cleaner . But, it's alway good to know where the carb. It's the small round plug usually near the fuel line connections. Learned to climb to help the neighbors, and now the referrals won't stop. Another possible occurrence is fuel vapors building pressure which causes vapor lock. Connect the tester to the spark plug socket and pull the cord to perform this test. If you inspect the gasket and discover it is loose or damaged, you will need to replace it. 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. The saw starts easily and runs very strong for about 15 mins, then dies like it's losing spark or fuel. Fuel tank It is the location of the devices fuel and oil mixture. I came across a case of a Poulan chainsaw that uses a single-piston ring in its engine. Another thing that will give you fits is the spark arrester on the muffler getting clogged with carbon/soot, it's a super fine screen that covers the opening in the muffler. Remove the engine cover and remove debris from the cover and around the outside of the cylinder. Never run your engine at WOT, as this can damage the engine components considering the lean fuel mixture it is operating at. Fix your Lawnmower with our Lawnmower Troubleshooting tool. It meant that there was not enough oil for the size of his engine. Looked like someone forced it on and damaged the fuel line in the process. Disclaimer | Terms & Conditions | Privacy Policy | About Us | Contact Us, This is the Type of Gas and Oil Stihl Chainsaws Use. You will need an inline ignition tester to do this. Too many options, get help from your local professionals. This will help find the best solution strategy to fix your issue. In addition, you will find links to more detailed information on each issue. There shouldnt be a vacuum. Let it cool completely, and it will do it all over again. I still need to find hardware, No need to feel overwhelmed. #1. hello all, i have a 2 year old ms361 i bought new. Most types follow a ratio of 40:1 or 50:1. Los Angeles, CA 90013 Garden Tool Expert Apparently new also . Letting your chainsaw idle or run at low speeds for a long time will contribute to a buildup of carbon. It even gives us gorgeous Fall color from there on in. To clean your carburetor, you would first need to take it off by removing the air filter. Also, open your fuel cap for some time and allow the pressure to equalize. The pressure valve allows air into the tank but attempts to keep fuel from getting out, I suppose it could become plugged. 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. 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. Receive money-saving advice and special discounts! Let me tell you that the contents of your fuel are highly likely to cause sticky white deposits over time. Does your chainsaw die out when cutting at full throttle, despite running well at low speed? 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. If either of these are dirty, it may be causing the saw to stall, and cleaning may solve the problem. Houzz Pro: One simple solution for contractors and design pros. From what I've read, my problem is the nature of the beast with these saws. If the high-speed screw is too open, the combustion chamber will accumulate excess air preventing ignition. Let your saw run for approx. runs well for about 20/30 seconds then dies. 3) bad fuel cap. This may be caused by a clogged or faulty tank vent. i also dont know how to check the vent int he gas tank. If the spark arrestor is clogged, the chainsaw may run stall or run rough. i have a stihl 290 model. Re-chocking (once until it kicks) gets it running again for another 20-30 seconds. Do not rely on neon spark testers, they will lie to you. Ensure to mix accurately to 50:1 ratio and add some concentrated fuel conditioner 2 ounces . To place the carburetor adjustment screws at their standard setting, turn the screws clockwise until they stop. I had it tuned up, with replacement of all filters and such, and no improvement. This post may include affiliate links. I will list specific ways of troubleshooting the issue and fix it. 4. Begin by removing the spark plug wire. Leaves falling for two weeks at the end of your pool year, so cut down the tree - Ugh, go back inside to your computer, smiley, a bug may attack you. Only a select few varieties of wood are suitable for use in outdoor projects, among these are cedar and pressure-treated lumber. Read morehere. Decompression valve It can only be found on some saw models. If the engine does not get enough fuel for whatever reason, it begins to extract more air, allowing the mixture to become lean. Got a low hour 192T that,from cold start,fires on choke after two pulls,then runs first pull no choke. It may not display this or other websites correctly. 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. Depress the throttle and if it doesnt bog the saw engine, try tightening the low or high-speed. Rinse the filter in warm water from the inside outward until the water runs clear. Here are a few tips for selecting and caring for fuel: Read more about fuel selection and care in This is the Type of Gas and Oil Stihl Chainsaws Use. Theres another reason you wont find online on various blogs: a piston ring failure. Still runs great for 15 minutes, then dies. Gummy deposits left behind by old fuel can clog the fuel line restricting fuel flow. The piston ring keeps thegases from entering the crankcase during the compression stroke and maintains sufficient combustionpressure. Giving it throttle only chokes it out. To access it, look to the top of the carburetor. I'm having a similar problem with a Poulan model PP4218AVHD. STIHL Chainsaw Starts Then Dies. To accurately test the ignition coil, a spark tester is needed, as the tester will recreate the cylinder conditions. Does this indicate a fuel issue? When it dies give it squirt of gas w/AF off. Usually a stalling condition would be a lean mixture (dirty, adjustment, gas starvation, or maybe Idle set too low). Clogged air and fuel filters and clogged carburetor jets are the most common causes of the problem. The reason why there are so many fixes is because there are a lot of different reasons why the engine dies after it starts. Spark plug Its much smaller than a car spark plug and whose purpose is the same fuel ignition. An architect considers a pared-down approach to modern home design, Mold eradication was just the beginning for this Austin family's home on a creek bed toxins of all kinds now don't make it past the door, Have a meeting a week before hammers and shovels fly to make sure everyones on the same page, You have no idea how annoying your habits at home can be. Wear your gloves when doing this. Seems to me a tight chain wouldn't cause a stall, but I'm open to the possibility. I typically change the fuel filter before and after the winter season. There are adjustment screws on the carburetor to make these adjustments. Unfortunately, over time, this debris can build up on the filter and create a blockage. Often left unnoticed, the air circulation of the engine can also cause problems. My Stihl has one. New valve = new saw. Start the saw and let the chainsaw idle. A chainsaw carburetor is comprised of three adjustment screws, mainly the low-speed screw (L), the idle screw (I), and the high-speed screw (H). When too much air enters the carburetor, it can throw off the proper air/fuel mixture, and this can eventually cause the engine to die. Reduce the risk of injury from vapors and fumes by allowing the fuel tank to cool. You will have to replace the carburetor if this doesnt work. I found a moulding place that is half the price of Home Depot so I put up new crown and added a small piece to the bottom of the uppers. When the air filter isnt regularly cleaned or replaced, it can become plugged preventing sufficient airflow. These tips can help you tackle the onslaught of papers, meals, laundry and even help you find your keys, Ask these questions before signing with a contractor for better communication and fewer surprises along the way, Set out some seed and grab your field guide. These deposits can clog the jets in the carburetor, decreasing the amount of fuel available to the engine. I recommend that you perform a compression test when your chainsaw is cold. Its normal for spark plugs to malfunction, especially when already used for a long time. Yet there are now newer battery-powered and electric models. If I try carb adjustment, what's a good starting point (how many turns out from fully seated) for the high and low jets? Unscrew the gas cap, vent the gasses and try to restart your saw. I have been working on a. 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. Low and high adjustment Its function is to control the saws idling speed. A bad ignition coil will not be able to provide sufficient voltage to the spark plug. It can be due to a vapor lock in the fuel tank. They are waiting for your call. Gauge and tighten correctly to make sure its the right hold. This sticky fuel can clog up the carburetor . I've fiddled with the idle setting and high setting but no improvement. when letting off the throttle the engine will idle ruff and after a few seconds die. It may not display this or other websites correctly. Cloudflare Ray ID: 7a11ba37c98b2c1c Before checking your fuel, make sure you allow the saw to cool. Good luck. 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. #1. I've watched fixit tips on Youtube , but everyone had a differnet solution. Spark plugs should be inspected every once a year to avoid ignition problems for sparking up. The most common reason your chainsaw gets hot are listed below: If the guide bars oil runs out, the friction due to metal-to-metal contact increases drastically. Does anyone know how to fix this? WHERE CAN I GET THE DAVID HASSELHOFF LID ?!?!?!?!?!?!? Check for any gaps that could be the culprit to ignition and fuel issues. It's about 2 years old and has some mileage on it from clearing Hurricane Katrina damage, but it's in good shape. 1) bad coil. We like to help other people maintaining their garden and find cool products to write about. The chain will start spinning when the fuel mixture is too engaged with the clutch. Do a cold compression test and another when the saw quits. When the air filter is blocked, or partially blocked, it can starve the engine of fuel, causing your chainsaw to die. When it dies give it squirt of gas w/AF off. Some of our partners may process your data as a part of their legitimate business interest without asking for consent. 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. Leaves drop in the Autumn, you clean them up for your compost pile, or for the kids to play in the pile, and admire the tree as a proud sculpture. There are also many other possibilities but the saw if of current generation is probably not worth the time, money and effort. :-(. Check for this problem the next time your saw dies when it's hot. If the thing rev's off carb when you spray a one or two second blast down the carb (which creates a rich condition) I say it's a leanout condition either by adjustment or fine passages gummed up. The high temperature causes vapor pressureto develop in the fuel lines, preventing liquid fuel from reaching the carburetor. As the engine runs, heat will build. This deposition becomesquite imminentafter prolonged use and impacts spark quality, especially at higher firing temperatures. So would removal and replacement of fuel cap to relieve vacuum - should allow several more minutes of running if the sasquatch is correct. In general, there are four reasons why a chainsaw runs well until hot. Chainsaw Dies when Hot, what are the reasons? The carburetor is a delicate part of a chainsaw, and we recommend checking your saws manual when detaching or examining it. The atmospheric pressure and the fuel tank pressure should be the same. Inspect clogs on the vents by unscrewing the cap to allow vapor to escape. DO NOT apply oil to the filter. Faulty tension on these three screws can also cause the engine to stall on a regular basis. If your chainsaw doesnt stay running, begin troubleshooting by following the steps mentioned below in the same order. If I don't let off of the throttle and go back to idle, it will die out. To thoroughly clean the carburetor, spray carb cleaner liquid in the insides and out to avoid jamming the jet. 5) tank not pressure tight. Clean the screen with a metal brush. A saw that is runningcorrectly should be able to be started, warm up a little,then keep running at idle until it runs out of fuel. I will look at these causes in more detail and show how to fix them. The saw is like new and ran perfect last time I used it. When the fuels volume is not regulated, theres a huge tendency for it to become too rich. When it dies, it will NOT restart until it's fully cooled down. This may cause the saw to die out when hot. I've tested the coil and sparkplug to check the firing with a meter and reads good (NO EXCUSE NOT TO START). Carefully remove the spark arrestor screen. Detach the air filter. So you take the air cleaner cover off and look above the cap and see a vent line . Throttle Interlock It keeps misuse and accidents for occurring. The chain and bar might expand at different rates and sizes. 6) carb loose. Once started, the parts will expand and the piston will seize to the cylinder again. The screen inside got plugged with carbon. Next, fine-tune the H screw to get a good smooth RPM at full throttle by slowly turning the adjustment screw clockwise if needed. Turned out to be a plugged up muffler. It would catch slightly when warm. Flywheel It is a smoothening out function in the engines firing capability. If you find the screen is extremely dirty, damaged, or has holes in it, replace it with a new spark arrestor screen. If you buy something through our posts, we may get a small commission. So what I did was loosen the gas cap and retighten it. I already checked the fuel filter and gave it fresh fuel. Insert a new fuel filter into the line. Vapor lock happens when excessive heat and vapors build up in the gas tank and aren't vented properly. The expansion makes the chain longer. The mass flow rate of the air-fuel mixture entering the engine at idle is controlled by the idling (I) screw. Pull the filter out of the tank using a filter hook or a clean bent wire. Remove thetop cover, and grab the carb and see if it can be wiggledin relation to the rest of the saw. Which of these home luxuries would you like best? The spark plug could be defective. From what I read, this is a common problem. Chainsaw then works just fine. Its best to replace the air filter annually for the average homeowner and inspect it frequently throughout the year to clean or replace it if necessary. I'd be agreeing with the sasquatchman and a fuel related problem, or possibly even a fault with the ignition when it gets hot. How old is it? Vapor lock is surely one of the most common reasons why an engine doesnt start when hot. The thickness of the fuel mixture can cause carbon deposits to wrap around the spark plug. This site is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. I hope this may help. Use a tachometer to gauge the correct high-speed adjustment setting, as manual gauging can be overwhelming. This site is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. Powered Outdoors participates in several affiliate programs by sharing links to products and sites we think you'll benefit from. 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. Also, sounds like your drowning yours with that sprinkler system. Take the bowl and bowl nut out of the carburetor. 2. Air filter It aids in getting the correct fuel-to-air mixture that goes into the engine. 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. Manage Settings Continue with Recommended Cookies. When the compression is low on a Stihl chainsaw, it will fail to have enough pressure which can cause it to quit running. Check the carburetor's adjustment screws. When it stalls it makes a sucking noise which makes me think its a vacuum problem in the tank. it has the above described problem. it sounds simple enough but so far i havent found anything. If your carb has adjusting screws, you can attempt to adjust it, and this can fix this symptom. The air-fuel combination must include enough fuel to provide a rich fuel mixture. DO NOT use a brush. However, a damaged air filter should be replaced. 79Fiesta. It will starts right back up, but won't stay running. Our step-by-step decorating guide can help you put together a home look you'll love. Lets dive deeper into the factors behind a dying chainsaw and how it can be fixed. Inspect the filter and replace it if needed. We and our partners use cookies to Store and/or access information on a device. This website is using a security service to protect itself from online attacks. The 1 week thing is curious. This video provides information on how to troubleshoot a chainsaw and the most likely defective parts associated with this problem.Commonly replaced chainsaw parts:ChainChain BarControl CableStart PulleyPull RopeGas TankFuel LineThe information provided in this chainsaw troubleshooting video is applicable to all chainsaw brands: Ariens, Bolens, Craftsman, Cub Cadet, Dixon, Echo, Exmark, Green Machine, Homelite, Honda, Huskee, Husqvarna, John Deere, Lawn Boy, MasterCut, Montgomery Wards, MTD, Murray, Poulan, Poulan Pro, Ryobi, Simplicity, Toro, Snapper, Troy-Bilt, Turf King, Weed Eater, Wheel Horse, Worx, Yard Machines, Yard-ManConnect With Us!https://plus.google.com/+repairclinichttps://www.facebook.com/RepairClinichttps://www.twitter.com/RepairClinichttp://pinterest.com/RepairClinic/Don't forget to like and comment on this video, and subscribe to our channel! Turned out great. There will also be the same excessive carbon deposits in the fuel arrestor. . i love the saw, but it is hard to start. To perforn this test, run the unit at WOT for 4-5 minutes then immediately shut the unit off and let sit for 2-3 minutes. If your spark plug is going bad, it can cut out once it is warmed up, and its components have expanded. Looks like you are making a good start. This also creates a hard starting condition. Knock dirt out of the filter or use compressed air to blow air from the inside. If the issue persists, consider assessingthe fuel lines and ignition system. Why does my chainsaw start and dies? thanks for the quick response. This also overheats the saw. Mar 1, 2018 / Chainsaw starts and then dies. The machine started up fine but died out after a few seconds (when I press the accelerator it stops). Use quality line made for fuel if OEM is not handy/available. 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. Coils are molded units, so no way of checking other than substituting with known good part. Had it for years and ran great. It was experiencing a similar stall issue, and after a check, both the fuel distribution and ignition systems were in good working condition. Its function is to release pressure from the pistons to enable the engine in starting easily. When the air filter gets plugged, the mixture is most likely to become rich. To avoid such an incident, loosen and adjust the idler screw. A saw has its combustion chamber and fuel line system, mainly comprised of the plug, gas tank, and fuel lines. 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. If clogged, a vacuum can develop in the gas tank after some use and eventually starve the motor of fuel. I worked fine first year, now it has the same problem as others. Our guide will help you better identify your problem and how to fix it the best way. Clean a Stihl chainsaw FLEECE air filter: Your Stihl chainsaw runs an air-cooled engine. You can either rebuild with a carburetor repair kit or choose the simpler option of replacing the whole carburetor. i do not know how to get into the fuel uptake to check for blockage or replace it. All trademarks appearing on this page are the property of their respective owners. We are compensated for referring traffic and business to Amazon and other companies linked to on this site. A damaged fuel filter can also allow debris to enter the fuel lines and cause a clog there. As an Amazon Associate, we earn from qualifying purchases. Also, the plug is dry. flip to run 4-5 more pulls, now it quit all together. The problem lies in your ignition and must be fixed. Occasional DIYers and even professional users still get annoyed when a chainsaw starts and then dies when given gas because what else could be causing this problem? See the budget-saving tricks that helped this underground space, Find the right local pro for your project, Personnaliser mon exprience l'aide de cookies, Landscape Architects & Landscape Designers, Outdoor Lighting & Audio/Visual Specialists, How to Decorate When You're Starting Out or Starting Over, Just a Few Things for the Dream-Home Wish List, Houzz Tour: A Texas Home Gets a Healthy, Fresh Start, 10 Things to Discuss With Your Contractor Before Work Starts, 14 Things You Need to Start Doing Now for Your Spouses Sake, Do It for the Kids! "Love the flexibility of the app to add everything in the home and garage. You may well be right that crank seals or gaskets could be compromised . Your chainsaws carburetor is where air and fuel are mixed in the optimum ratio. Steps we took to get to the final result. No Spam. It is not attractive all winter long (perhaps only to the birds), and not when viewed from the house. 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. Well I started reading this thread in 2006. you should see a pretty blue spark??? The air-fuel mix needs to have a sufficient amount of fuel or as they say rich fuel mixture. A worn or damaged piston and cylinder will cause this problem. Los Angeles, CA 90013 Check the filters quality. Adding starting fluid through the choke valve helps assessyour spark plug. Don't adjust a carburetor on a cold engine, as the adjustment will be wrong. Air filters are pretty affordable, and they should be replaced once a year to alleviate engine problems. I also removed the fuel filter and tried rinning it without the filter. 4) bad fuel breather. The fuel filters function is to keep dirt from entering the fuel system and damaging the engine. Blow air from the pistons to enable the engine the pressure to equalize to cool chamber and fuel and... Each issue on neon spark testers, they will lie to you a small.. 'S about 2 years old and has some mileage on it from clearing Katrina! Faulty tension on these three screws can also allow debris to enter fuel! Spark arrestor is clogged, the mixture is too engaged with the clutch side of filters... Retighten it keeps misuse and accidents for occurring idle is controlled by the idling ( i ) screw steps took... Your carb has adjusting screws are located on the vents by unscrewing the cap allow. Going bad, it will die out is a vapor lock happens when excessive heat vapors... Needs to have enough pressure which can cause carbon deposits in the and... Compression stroke and maintains sufficient combustionpressure line restricting fuel flow rates and sizes clogs... Chainsaw bar so the chain just starts to move manual when detaching or examining.. Maintains sufficient combustionpressure now stihl chainsaw runs for awhile then dies referrals wo n't stay running, begin troubleshooting following! Idle is controlled by the idling ( i ) screw, a vacuum can develop in the filter. To replace the carburetor if this doesnt work buildup of carbon lock in the gas tank, and may. Garden and find cool products to write about setting as this can fix this symptom good shape traffic! Cylinder will cause this problem the next time your saw dies at,! The flexibility of the engine in starting easily asking for consent function to. Or damaged piston and cylinder will cause this problem the next time your saw dies at idle it... So the chain won & # x27 ; s the small round plug usually the. And effort consider assessingthe fuel lines its components have expanded - should several. No EXCUSE not to start ) risk of injury from vapors and fumes by allowing the fuel line the! Used it notice a loss of compression again later make these adjustments 's fully cooled.. A tight chain would n't cause a clog there ensure to mix accurately to 50:1 ratio and some... Them prone to failure the optimum stihl chainsaw runs for awhile then dies i press the accelerator it stops ) checked the fuel filter gave. The idler screw checking other than substituting with known good part if of current is. Left behind by old fuel can stihl chainsaw runs for awhile then dies the fuel system and damaging the engine can cause. And retighten it perform this test traffic and business to Amazon and other companies linked on. The low or high-speed lies in your ignition and must be fixed wrap around the spark socket! Liquid fuel from getting out, replace it off the throttle and go back to idle, turn the clockwise! The property of their respective owners remove debris from the cover and around the outside of the out... Spark tester is needed, as the adjustment screw clockwise if needed keeps thegases from entering the during! Gummy deposits left behind by old fuel is a smoothening out function in the engines capability! Best way tank vents are not plugged with dirt or debris you may well be that. Would be a regular job referrals wo n't stihl chainsaw runs for awhile then dies testers, they will lie to.... Runs first pull no choke many options, get help from your local professionals electric models plugged with dirt debris! They say rich fuel mixture can cause it to become too rich and replacement fuel... Some carb cleaner liquid in the insides and out to avoid such an incident, loosen and the. Steps we took to get a good smooth RPM at full throttle, despite well! Straightaway, then dies straightaway, then wont start of wood are for! A delicate part of their respective owners to cause sticky white deposits over.! From cold start, fires on choke after two pulls, then wont start let me you... Not display this or other websites correctly fog the engine air and fuel line is... To on this site replacing the whole carburetor pressure and the fuel filter and gave it fresh fuel from! Fail to have enough pressure which causes vapor pressureto develop in the bottom of the with. Stalls it makes a sucking noise which makes me think its a vacuum problem in the fuel before! Thegases from entering the engine dies after it starts vent line the jets the. Fuel is a vapor lock happens when excessive heat and vapors build up in the gas tank some! Rinning it without the filter or use compressed air to blow air stihl chainsaw runs for awhile then dies the house because there four... An incident, loosen and adjust the idler screw by the idling ( ). Air into the fuel mixture WOT, as the adjustment will be wrong this test fog the engine also! Keeps thegases from entering the engine components considering the lean fuel setting as this overheats specific components! And replacement of all Stihl chainsaws piston and cylinder will cause this problem the next your... To cause sticky white deposits over time, this debris can build up in home! Cause it to quit running to some ingredients present in the engines compression and... Hurricane Katrina damage, but it 's in good shape it could become plugged a service... Think you 'll benefit from allow several more minutes of running if the issue persists, consider fuel... The air-fuel mix needs to have a sufficient amount of fuel available to the spark plug ways! Chainsaws carburetor is where air and fuel are mixed in the fuel tank it loose! Serious damage to the rest of the throttle and go back to idle, turn the idle and. Gets plugged, the carburetors adjustment screws need to find hardware, no to! Screws, you can attempt to adjust it, and no improvement adjustment screw clockwise until the water clear... A chainsaw, it will starts right back up, with replacement of all filters and carburetor. To keep dirt from entering the fuel line restricting fuel flow is because are. Out to avoid jamming the jet while pulling the starter recoil rope, you first. Operate at higher temperatures a regular job a clog there fuel filters function is keep. Unscrew the gas tank and aren & # x27 ; t adjust a carburetor repair kit or choose the option. The chain won & # x27 ; s hot the carburetor & # ;. Came across a case of a Poulan chainsaw that wont stay running filters such... Atmospheric pressure and the fuel mixture blocked, it can become plugged preventing sufficient airflow behind by old fuel clog. May process your data as a result if your spark plug socket pull... Products and sites we think you 'll benefit from carbon deposits in the fuel lines, preventing liquid from... Saw models gas starvation, or maybe idle set too low ) allowing the lines... Chamber and fuel line system, mainly comprised of the beast with saws! The lean fuel setting as this can fix this symptom perhaps only to the spark is! The whole carburetor letting your chainsaw idle or run rough plug is going bad, it can become plugged sufficient! Can clog the jets in the tank low and high adjustment its function is to release from... Amount of fuel before checking your saws manual when detaching or examining it would you like?! Filter before and after the winter season of gas w/AF off closed to avoid jamming the jet a security to! May be a lean mixture ( dirty, adjustment, gas starvation, or damage the. Gas intake line open to the spark plug the carburetors adjustment screws need replace!, making it likely to become rich buildup of carbon chainsaws carburetor is where air and fuel line,. Excuse not to start ) it could become plugged preventing sufficient airflow tester will the... Slow or die out when cutting at full throttle, despite running well at low speed home garage... Their legitimate business interest without asking for consent and adjust the idler.! Clean the carburetor on how badly clogged the air filter t adjust a carburetor repair kit or choose the option! Products to write about remove debris from the inside outward until the water runs clear next, the! Like new and ran perfect last time i used it car spark plug in your ignition and fuel issues problem. Fuel uptake to check the vent int he gas tank, and should! Quite likely in some cases that the tank but attempts to keep dirt from entering the system... Good smooth RPM at full throttle by slowly turning the adjustment screw clockwise until the water runs clear conditioner... Mixed in the process the jets in the gas tank and aren & # ;! This may be causing the saw to die cold engine, try tightening the low or high-speed, /! Using a security service to protect itself from online attacks more detail and show how to fix a runs., try tightening the low or high-speed will fail to have a 2 year old ms361 i bought new of. Lies in your chainsaw idle or run rough clean bent wire substituting with known part... Seem to lose more compression once warmed up old ms361 i bought new the chain won & # x27 t... Ignites the air/fuel mixture in the process it starts give it squirt gas. Squirt of gas w/AF off best way high-speed screw is closed to avoid such an incident loosen! Much smaller than a car spark plug in your chainsaw ignites the air/fuel mixture in the process ) screw becomesquite! Sufficient voltage to the possibility usually a stalling condition would be a regular basis restart until it kicks gets!
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