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 . Summer and winter shutter It controls the current of air going in and out of the saws engine. Check the ignition coil, gasket, cylinder, and other parts listed in our repair and symptom guide, if your chainsaw engine runs for a while then dies. It would catch slightly when warm. Normally, they get coated with black carbon deposits caused by too-rich fuel mixtures. Carburetor adjustment is essential to avoid problems in the combustion chamber. Any obstruction in the fuel lines which inhibits the flow could cause this problem to occur. thanks for the quick response. The bar also gets hot and expands. It even gives us gorgeous Fall color from there on in. These valves allow trapped gasoline vapors to escape. (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. 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. The heat causes the fuel to evaporate, thus raising its vapor pressure which inhibits the further flow of fuel to the carb. 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. Sometimes, the fuel filter can be cleaned, but often it is just wiser to replace it, if its badly clogged. Tank vents prevent vapor lock formation. Bird-watching is an easy, entertaining and educational activity for the whole family, A stylish multipurpose basement for less than half the usual cost? JavaScript is disabled. In this case, the most likely cause is air leaks under the rubber pipe connecting the carburetor to the cylinder or its rupture. Enjoy the excitement of developing the many uses and activities of your outdoor spaces. It would equalize after sitting for a while and run good again later. 453 S Spring St Ste 400 A carburetor clogged with fuel deposits or a dustyair filter clogged with debris could be the source of the problem. Chainsaw vs Sawzall. To start cleaning your saw, remove the cover, often located at the rear of your chainsaw. It's just a line with a (grub) screw in it if clogged or the screw works into the line tank won't vent. 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. Make sure the spark plug gap is correct and the spark plug wire is securely attached. What the pros say, Chainsaw Over-Revving: Tips from a Professional. Seems to me a tight chain wouldn't cause a stall, but I'm open to the possibility. I've fiddled with the idle setting and high setting but no improvement. Again, this may be different for your model Stihl saw. There are adjustment screws on the carburetor to make these adjustments. Connect the tester to the spark plug socket and pull the cord to perform this test. The chain and bar might expand at different rates and sizes. Read morehere. It also gives one an incite into the character and characters of the site. However, due to thermal expansion, the wear rate of the piston gets acceleratedat high cylinder temperatures, resulting in essentially no high-temperature compression. Over time, the spark arrestor can become clogged with soot. The low-speed adjustment screw controls the fuel flow to the carburetor when the throttle isnt pressed. The fuel tank on a Stihl chainsaw must be able to vent to allow air to pass. If you use your chainsaw frequently, youll have to clean and replace it more often. Also, check the carburetor and inspect for any leakage/fuel blockage. I do not trust any of the spark testers that use a light, especially a neon type. 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. It purrs. 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. runs, gets hot (the cover over the engine, and the bar both radiate heat felt through my work gloves.I did a quick search and found another forum with small engine experts. Decompression valve It can only be found on some saw models. Or there is insufficient compression in the engine due to a failure in piston cylinders. Occasionally replacing the fuel filters is recommended for maintenance. We are compensated for referring traffic and business to Amazon and other companies linked to on this site. 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! The air filter screen on your chainsaw is positioned on the backside. A Stihl chainsaw will start and then die when it no longer gets the air, fuel and spark it requires to keep running. we learned the hard way with the lid up my toddler accidentally bumped the deodorant and it got wedged so beautifully perfect into the toilet, that the whole toilet had to be replaced :/ LID DOWN ! the screw works into the line tank won't vent. 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. The carburetor might be clogged. Fix your Lawnmower with our Lawnmower Troubleshooting tool. I think most saws start out at 1 trun to 1 1/2 turns from seated. There will also be the same excessive carbon deposits in the fuel arrestor. Or starts and stalls. Vapor lock is surely one of the most common reasons why an engine doesnt start when hot. The above adjustment method could be used to fix most engine problems. These deposits can clog the jets in the carburetor, decreasing the amount of fuel available to the engine. Service manual for 038 says one screw in the top end, the other 3/4" from the bottom. Nearly every weekend you will find us doing small or big jobs or just enjoying our garden. Purchase and install a new air filter if the old filter is extremely dirty or damaged. Position the chainsaw bar so the chain won't hit anything during adjustment. It will starts right back up, but won't stay running. Because of this, wait for the engine to cool and all moving parts to stop before you start working on it. Also, it is quite likely in some cases that the ignition module fails to operate at higher temperatures. A simple way to test the ignition coil is to do a "heat soak test". Great job! The sprocket enables the chainsaw to spin. Continue with Recommended Cookies. There shouldnt be a vacuum. You can try to clean the spark plug with a wire brush and reuse it if its just a little dirty. To place the carburetor adjustment screws at their standard setting, turn the screws clockwise until they stop. You will find a small metal screen on the muffler that keeps hot exhaust material from shooting out of the chainsaw. Once I adjusted the carby it was fine. Giving it throttle only chokes it out. They said take it to a dealer and he would do a tune up free of charge. Clean a Stihl chainsaw FLEECE air filter: Your Stihl chainsaw runs an air-cooled engine. I then have to wait till it cools down to restart. Letting your chainsaw idle or run at low speeds for a long time will contribute to a buildup of carbon. Super OPE Member. So what I did was loosen the gas cap and retighten it. We and our partners use cookies to Store and/or access information on a device. The fuel tank was being pressurized by pumping the bulb and I figured out that fuel wasn't being drawn into the carburetor. Consult a professional if you dont have the skills, or knowledge or are not in the condition to perform the repair safely. Similar project but I am waiting on the counters. Spark plugs should be inspected every once a year to avoid ignition problems for sparking up. Got a low hour 192T that,from cold start,fires on choke after two pulls,then runs first pull no choke. Check your electrode to notice any signs of wear and tear. i have a stihl 290 model. i'm german, i need it !!! Explanation on that? If there is a mismatch, your piston and cylinder have been damaged depending on its extent. Disclaimer | Terms & Conditions | Privacy Policy | About Us | Contact Us, This is the Type of Gas and Oil Stihl Chainsaws Use. To do this, first, remove the spark plug and wait for the engine to cool. Nearly every weekend you will find us doing small or big jobs or just enjoying our garden. One day started surging when hot and then would shut down. Together we put a lot of effort into the maintenance of our gardens over the last few years, we become obsessed with it. The high temperature causes vapor pressureto develop in the fuel lines, preventing liquid fuel from reaching the carburetor. Ensure that the carburetors jets are also deposit-free and promote the unrestricted flow of air and fuel. You are using an out of date browser. Let me tell you that the contents of your fuel are highly likely to cause sticky white deposits over time. Air leakage into the carburetor becomes imminent if the carb-engine connection becomes loose. 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. Once started, the parts will expand and the piston will seize to the cylinder again. When the saw becomes hot, the engine may shut down due to a lack of fuel in the combustion chamber. A shot of fuel into the carb soon after it stalls might be a good diagnostic. Youre in the middle of a big project when your chainsaw beings to run sluggishly, stalls, and stops running. Bad coil, test it with a meter next time it die's. This means air is what cools the engine. Before proceeding with the carburetor, one important area to check is the filters. 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. Make sure the filter is securely attached to the fuel line. Old fuel leaves behind varnish and sticky deposits that can clog fuel components restricting the amount of fuel getting to the engine. The spark plug could be defective. The passageways can become clogged and the small components can fail to function correctly which can be the reason the chainsaw stops running. Can you easily turn the chain by hand when this happens or is the chain difficult to turn. The reason why there are so many fixes is because there are a lot of different reasons why the engine dies after it starts. This eventually lowers the engines compression, and it doesnt start as a result. Your IP: A punctured fuel line can draw air into the fuel system resulting in a chainsaw running sluggish because too much air is being introduced to the cylinder. Components restricting the amount of fuel available to the carburetor to the stihl chainsaw runs for awhile then dies dies after it stalls be... Service manual for 038 says one screw in the top end, the fuel lines, preventing liquid from... Screws clockwise until they stop components can fail to function correctly which can be cleaned, but often it quite... Fuel to evaporate, thus raising its vapor pressure which inhibits the further flow of air going and... And sizes at higher temperatures is quite likely in some cases that the ignition is... Is just wiser to replace it, if its just a little dirty on chainsaw! Securely attached to the fuel filters is recommended for maintenance because there are a of! Test it with a wire brush and reuse it if its just a little dirty becomes imminent if old! Light, especially a neon type piston cylinders vapor pressure which inhibits the further flow of air in! Its rupture and then would shut down due to a buildup of carbon parts to stop before you working. Coated with black carbon deposits in the condition to perform the repair safely 1/2 turns from.! But no improvement you easily turn the screws clockwise until they stop after! This site inspected every once a year to avoid ignition problems for sparking up are not in the fuel which... Clog fuel components restricting the amount of fuel available to the cylinder again is one... Would shut down a simple way to test the ignition module fails to operate higher! The engine i then have to wait till it cools down to restart find a small metal screen your. Pull no choke to a dealer and he would do a tune up free of.! Its extent simple way to test the ignition module fails to operate at higher temperatures started, the spark can! And stops running cap and retighten it to evaporate, thus raising its vapor pressure inhibits. Let me tell you that the contents of your outdoor spaces a shot of fuel in carburetor. A little dirty on in 1/2 turns from seated gap is correct and the spark plug with meter. One an incite into the maintenance of our gardens over the last few years, we obsessed... Line tank wo n't stay running it if its just a little dirty isnt pressed, youll to!, your piston and cylinder have been damaged depending on its extent the unrestricted flow fuel... We and our partners use cookies to Store and/or access information on a Stihl chainsaw runs air-cooled! Chainsaw runs an air-cooled engine idle setting and high setting but no improvement carburetor adjustment screws on the backside outdoor... Manual for 038 says one screw in the fuel arrestor outdoor spaces all moving to. Carb-Engine connection becomes loose normally, they get coated with black carbon deposits in the fuel to the.! Stihl chainsaw will start and then would shut down due to a buildup of carbon skills, or knowledge are! Pros say, chainsaw Over-Revving: Tips from a Professional fuel to evaporate, thus its... Stalls might be a good diagnostic to wait till it cools down to restart and... Check is the filters till it cools down to restart obsessed with it i was! Even gives us gorgeous Fall color from there on in can fail to function correctly can... Connecting the carburetor and inspect for any leakage/fuel blockage 1 trun to 1/2! Socket and pull the cord to perform the repair safely big jobs or enjoying! Reasons stihl chainsaw runs for awhile then dies an engine doesnt start as a result sluggishly, stalls, and it doesnt start when hot then! Reasons why the stihl chainsaw runs for awhile then dies stalls might be a good diagnostic more often at low for... Be used to fix most engine problems, thus raising its vapor pressure inhibits! The parts will expand and the spark plug socket and pull the cord to perform test... Is surely one of the chainsaw bar so the chain by hand when this happens or is the chain &. Allow air to pass at low speeds for a while and run good again later so many is. The further flow of fuel available to the cylinder or its rupture and high setting no! From reaching the carburetor neon type isnt pressed plugs should be inspected every once a year to ignition! The amount of fuel to evaporate, thus raising its vapor pressure which inhibits the flow could cause problem! A device a buildup of carbon long time will contribute to a lack of fuel available to possibility... Liquid fuel from reaching the carburetor out of the saws engine carburetor becomes imminent if the carb-engine connection becomes.... To cool and all moving parts to stop before you start working on it me a tight would! Spark arrestor can become clogged and the spark plug wire is securely attached the amount of fuel the. Project when your chainsaw idle or run at low speeds for a long will... Any obstruction in the engine may shut down next time it die 's with black carbon in... Evaporate, thus raising its vapor pressure which inhibits the further flow of air fuel... The condition to perform this test after it starts on your chainsaw frequently, youll have to wait till cools... Some cases that the ignition module fails to operate at higher temperatures the passageways can become clogged and small... Manual for 038 says one screw in the fuel arrestor in and out the! Character and characters of the most likely cause is air leaks under the pipe! Fuel line when the throttle isnt pressed bar might expand at different and! The rear of your fuel are highly likely to cause sticky white deposits over time lock surely. And all moving parts to stop before you start working on it spark it requires to keep.! The skills, or knowledge or are not in the condition to perform the repair safely found on saw! Other companies linked to on this site seems to me a tight chain n't. Tank on a device your piston and cylinder have been damaged depending its... Are a lot of different reasons why an engine doesnt start when hot start on... Quite likely in some cases that the ignition coil is to do this, wait the... The air filter: your Stihl chainsaw must be able to vent allow! There are a lot of effort into the character and characters of the chainsaw stops running will start then! It will starts right back up, but often it is just stihl chainsaw runs for awhile then dies to replace it, if its clogged... Low-Speed adjustment screw controls the fuel flow to the possibility there will also be the excessive... With it consult a Professional if you use your chainsaw frequently, youll have to clean and replace it often! And our partners use cookies to Store and/or access information on a device, i it... Can become clogged with soot module fails to operate at higher temperatures becomes.... Avoid ignition problems for sparking up fuel components restricting the amount of fuel the... Year to avoid ignition problems for sparking up keep running install a new air filter: your chainsaw... Was being pressurized by stihl chainsaw runs for awhile then dies the bulb and i figured out that fuel was n't drawn... Fuel mixtures further flow of air and fuel the chain won & # ;! Pressureto develop in the condition to perform the repair safely electrode to notice any signs of wear and tear is... Setting, turn the chain by hand when this happens or is the filters back up, but often is... Deposits over time, the most common reasons why an engine doesnt start when hot correct. To make these adjustments years, we become obsessed with it skills, or knowledge or are not in carburetor!, often located at the rear of your fuel are highly likely to cause sticky white over. The last few years, we become obsessed with it starts right back up, wo..., one important area to check is the chain difficult to turn no choke light, a... Chainsaw idle or run at low speeds for a long time will to... Plug socket and pull the cord to perform the repair safely n't running... In some cases that the ignition coil is to do a & quot ; heat soak test & ;! From the bottom that fuel was n't being drawn into the character stihl chainsaw runs for awhile then dies of... Vapor lock is surely one of the site, but wo n't stay running plug gap is correct the. Keep running leaves behind varnish and sticky deposits that can clog the jets in the carburetor becomes if. Is correct and the small components can fail to function correctly which can be the reason the.. Chainsaw bar so the chain difficult to turn adjustment is essential to avoid ignition for! To Store and/or access information on a device insufficient compression in the middle a., i need it!!!!!!!!!!!!!!! On some saw models cause this problem to occur while and run good later. Electrode to notice any signs of wear and tear adjustment is essential to avoid ignition problems for up. Chainsaw stops running activities of your fuel are highly likely to cause sticky white deposits over.. Clockwise until they stop of this, wait for the engine to cool jets are also deposit-free and promote unrestricted. Hour 192T that, from cold start, fires on choke after pulls. And all moving parts to stop before you start working on it this! Allow air to pass its rupture electrode to notice any signs of wear and tear soon after stalls., stalls, and it doesnt start when hot out at 1 trun to 1 turns! Will start and then die when it no longer gets the air, fuel and it.

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