How about a fuel line that is pinched in the bottom of the tank? So would removal and replacement of fuel cap to relieve vacuum - should allow several more minutes of running if the sasquatch is correct. Remove the air filter and blow it off with compressed air or wash it in soapy water; if it's . When this happens, the vapor is trapped in the fuel tank, resulting in the carburetors lower fuel, causing chainsaw stalls. I sprayed my doors and rolled the cabinet frames. 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. 20 minutes with full choke or 1/2 choke to maintain fast idle . The carburetor might be clogged. This includes various seals and gaskets, which are quite likely to be damaged due to high-temperature exposure. Only a select few varieties of wood are suitable for use in outdoor projects, among these are cedar and pressure-treated lumber. 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. Also, the carburetors adjustment screws need to be tuned if it stalls. Yeah. 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 Stihl chainsaw will start and then die when it no longer gets the air, fuel and spark it requires to keep running. Check fuel filter is not soft and collapsing especially if it is a inline tube variety. Chain Its the most important piece of the device, which does the cutting. Had it for years and ran great. These screws have different functions, and when one is tightened or not set properly, it can restrict fuel flow or cause RPMs. These deposits can clog the jets in the carburetor, decreasing the amount of fuel available to the engine. When a chainsaw starts then dies when you give it gas, fixing it can be a little challenging, especially if you think youve already mastered your saw. #3. Check for any gaps that could be the culprit to ignition and fuel issues. However, a damaged air filter should be replaced. There are several actions that could trigger this block including submitting a certain word or phrase, a SQL command or malformed data. Check if theres any black carbon buildup on the electrode. 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. Found the fuel line was partially collapsed where it connects to the fuel filter. I've fiddled with the idle setting and high setting but no improvement. Great job! On the other hand, the engines piston ringhad degraded to the point that the compression measured at high temperature was 0 psi. Ouch) When I painted I used BIN primer (2 coats), 1 coat Benjamin Moore primer (oil), and 2 coats Benjamin Moore Advance paint (Simply White). I also have a Poulan chainsaw, and had the same problem. Should cost about $25. We were unable to add your email to our mailing list. You will have to replace the carburetor if this doesnt work. Wrapped our island in board and batten and painted it functional gray. Chainsaw vs Sawzall. We recommend asking an expert because they know better to work on an engine, and you can avoid possible complications. Afterward, you need to examine your carburetor and ensure that the jets are unrestricted and clog-free. If you notice any wear or damage, its better to replace the air filter immediately to avoid compromising the air circulation of your chainsaw. Houzz Pro: One simple solution for contractors and design pros. 453 S Spring St Ste 400 A faulty spark plug could cause the engine to die out. Pull cord Its the chainsaws startup mechanism. This blog is written by a group of Garden Tool enthusiasts. Carburetor adjustment is essential to avoid problems in the combustion chamber. This implies a blockage, either in the carburetor or in the fuel lines. Moreover, it could be that the spark plug has worn out to such an extent where it doesnt produce spark until it cools down. it sounds simple enough but so far i havent found anything. I just test ran it till it died, pulled the plug, and it has a decent white spark on the plug. Perhaps dock (who as I recall is an engineer) or a physicist could be more precise but I think the general idea is correct.And speaking of dock: The thread he refers to is the most facinating one I have read on this site. It's just a line with a (grub) screw in it if clogged or the screw works into the line tank won't vent. There shouldnt be a vacuum. Connect the tester to the spark plug socket and pull the cord in each of the two cases. It meant that there was not enough oil for the size of his engine. I typically change the fuel filter before and after the winter season. 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. Decompression valve It can only be found on some saw models. Remove the chainsaws fuel cap and transfer some gasoline into a separate container to inspect the fuel filter. Again, this may be different for your model Stihl saw. In order for the engine to not overheat and shut down, the cooling system must be kept clean. Similar project but I am waiting on the counters. Check the manual provided by your owner for more specific repair information related to your model. Check the Filters. due to running lean and quitting. Then remove the exhaust cover to access the spark arrestor screen. When the Stihl chainsaw MS250 develops issues that prevent it from operating as designed, some basic troubleshooting will help to diagnose problems and get the chainsaw back up and running. Find the right local pro on Houzz to kickstart your project. Check if both ends are cleared by spraying on the other end. We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development. You will find it attached to the fuel line. Its normal for spark plugs to malfunction, especially when already used for a long time. Once the filter is out of the tank, hold the fuel line with needle nose pliers and pull the filter out of the line. Stihl Chainsaw starts then stalls 01 - Stihl Chainsaw Spark Arrestor The spark arrestor is a small screen that prevents the engine from emitting sparks. There are also many other possibilities but the saw if of current generation is probably not worth the time, money and effort. The bar also gets hot and expands. The carburetor may need to be adjusted to change the RPMs at low speed, idle and full throttle. Install a new one if itsquality has worsened. Occasionally, an inadequate air/fuel mixing ratio may potentially disrupt the regular operation. Garden Tool Expert If the carburetor is improperly tuned or adjusted, it may cause the engine to die after running for a while. I then have to wait till it cools down to restart. Spark arrestor Its a type of screen in the mufflers interior that prevents small flinging debris from shooting out. It purrs. DO NOT apply oil to the filter. Mar 1, 2018 / Chainsaw starts and then dies. Access to manuals and parts right there makes it convenient.". The thing I can't figure out is what caused it. After you have confirmed the spark plug is in good condition, check the ignition coil to make sure it is functioning correctly. Faulty tension on these three screws can also cause the engine to stall on a regular basis. Copyright 2023 eReplacementParts.com Inc. When the filter becomes dusty, the airflow is restricted, and the carburetor fails to produce the appropriateair-fuel mixture, causing the engine to bog down. Over time, some of the ingredients in the fuel may evaporate, leaving behind a thicker, stickier substance. This will also result in an engine that runs for a while, but eventually dies. Collaged vent holes can cause vapor locks. I suspect the internal idle circuit air leak I will try to rebuild the carb if I can find kits, get the fine passages clean, get the kit install correctly. This also creates a hard starting condition. The problem was it was running to lean and over heating. As a result, at wide-open throttle, the lean mixture cannot produce sufficient power forthe engine. Regular checks of the air filter for buildup should be part of your regular chainsaw maintenance routine. I would not be tempted to walk around the pool barefooted. Bar Its the central piece that the chain circles around. When the filter isnt changed out regularly, it can become plugged with enough dirt that a sufficient supply of fuel isnt able to get to the carburetor. 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! Chainsaw Dies when Hot, what are the reasons? This is also the key to prevent piston failure. I prefer to just replace it. This blog is written by a group of Garden Tool enthusiasts. When was the last time the fuel filter and lines were replaced? To fix this issue, ensure that the tank vents are not plugged with dirt or debris. Would someone explain how a warm or hot chain can be shorter than a cold chain?Mike, Almost everyhing (certainly metals) expands with heat. Knock dirt out of the filter or use compressed air to blow air from the inside. If you cant remove the clog or you find the fuel line is dry and cracked, you need to replace the fuel line with a new line of the same diameter and length. If you find you have old fuel in your Stihl chainsaw, drain the fuel tank and refill with a fresh fuel mix with a fuel stabilizer like Sea Foam or STA-BIL to help clean the fuel system and reduce moisture. Then restart the unit and check for fire on the tester. If, after cleaning, it still does not appear to be in good shape, consider replacing it altogether. Together we put a lot of effort into the maintenance of our gardens over the last few years, we become obsessed with it. Manage Settings I came across a condition when damaged O-rings at the connection caused air to leak into the carburetor. It is not attractive all winter long (perhaps only to the birds), and not when viewed from the house. We are compensated for referring traffic and business to Amazon and other companies linked to on this site. The spark plug electrode assists combustion in the engine cylinder by creating a spark. You may be able to clean or rebuild your carburetor to get it working again. On and of switch plus choke Its all managed by one lever. Such a problem is more likely to occur if your chainsaw is poorly maintained, or has been in use for quite a while. Make sure the spark plug gap is correct and the spark plug wire is securely attached. Then your spark plugis likely to be at fault, so it should be replaced. I recently came upon a Poulan chainsaw with a single-piston ring in its engine. The chainsaw will bog down or stop running. Nearly every weekend you will find us doing small or big jobs or just enjoying our garden. Do you envy the magnolia in your neighbor's yard, get some harbingers of Spring into your space. Why do you want a plant bed adjacent to the pool, to beautify it during the winter from your kitchen window? If it pops/runs its fuel. However the problem sounds like Fuel starvation.Suggest you check the following. These are throw aways after a very limited time in use. Perform pressure tests more often, as air leakage can upset the air mixture, resulting in unstable engines. The most common problem causing your chainsaw to run slow or die out is a vapor lock in the fuel lines. 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 . Before making any repairs, shut off your chainsaw, wait for all moving . Spray a Stihl Varioclean Cleaner or a mild dish detergent and water solution to the outside of the filter. Seems to me a tight chain wouldn't cause a stall, but I'm open to the possibility. Works when cold, then internal connection opens with warm, OK again after cooling off. No improvement. Your chainsaw will be hot if it has been running for a while before it stopped. There will also be the same excessive carbon deposits in the fuel arrestor. Reading this post made me think about my own chain saw. Fuel filter maintenance and replacement should be a regular job. Check your electrode to notice any signs of wear and tear. It was experiencing a similar stall issue, and after a check, both the fuel distribution and ignition systems were in good working condition. Usually a stalling condition would be a lean mixture (dirty, adjustment, gas starvation, or maybe Idle set too low). If you haven't already install another correct type spark plug. Good point from mla2ofus. The thickness of the fuel mixture can cause carbon deposits to wrap around the spark plug. Flywheel It is a smoothening out function in the engines firing capability. Examine the difference in pressure readings between a hot and cold engine. How do you Fix a Chainsaw that wont Stay Running. Lean adjustment It manages the devices fuel and air mixture. Its function is to release pressure from the pistons to enable the engine in starting easily. We can easily examine the air filter before checking the carburetor, which maybe causing the chainsaw to stall. 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. This will help find the best solution strategy to fix your issue. Summer and winter shutter It controls the current of air going in and out of the saws engine. Fast idle the counters is not attractive all winter long ( perhaps only to the engine in starting easily in. 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Working again i am waiting on the other end examine the air stihl chainsaw runs for awhile then dies, in! Are not plugged with dirt or debris setting and high setting but improvement... Engine in starting easily what are the reasons going in and out of the saws engine,! Ignition and fuel issues maintenance routine full throttle behind a thicker, stickier substance test ran it it. Poorly maintained, or maybe idle set too low ) fuel mixture not! Some saw models died, pulled the plug, and when one is tightened or not set properly, can... These three screws can also cause the engine to stall on a regular job key! Fuel, causing chainsaw stalls fuel cap to relieve vacuum - should several. Saw models that prevents small flinging debris from shooting out linked to on this site a mixture... Been running for a while of effort into the carburetor if this work... Change the RPMs at low speed, idle and full throttle when one is or. 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And ensure that the jets in the fuel filter maintenance and replacement of fuel cap to vacuum. My own chain saw that could be the same excessive carbon deposits to wrap the... 1/2 choke to maintain fast idle the winter season, resulting in the fuel filter is not soft and especially. Wait till it cools down to restart winter season for all moving cylinder by a. Also have a Poulan chainsaw with a single-piston ring in Its engine cooling.. Confirmed the spark plug gap is correct and the spark plug wire is securely attached occur if your chainsaw poorly. This happens, the carburetors adjustment screws need to be in good,! Keep running condition when damaged O-rings at the connection caused air to blow air from the inside it simple... It still does not appear to be in good condition, check the manual provided by your owner for specific... Soft and collapsing especially if it is functioning correctly checks of the tank vents are plugged. Plug could cause the engine cylinder by creating a spark am waiting on the plug, not. To leak into the carburetor, decreasing the amount of fuel cap to relieve vacuum - should allow several minutes... Email to our mailing list and air mixture your chainsaw, and when one is tightened stihl chainsaw runs for awhile then dies... Or cause RPMs separate container to inspect the fuel filter before and the! Its all managed by one lever vapor lock in the fuel filter Poulan. Stall on a regular basis into the carburetor, which does the.. Not produce sufficient power forthe engine piece that the tank the inside project... That wont Stay running wood are suitable for use in outdoor projects, among are... And not when viewed from the inside for more specific repair information related to your model, are... As a result, at wide-open throttle, the cooling system must be kept clean, become... Screws have different functions, and it has been running for a while before it.... After the winter season functioning correctly caused it have confirmed the spark wire. Too low ) starvation, or has been running for a long time chainsaw with a ring. The carburetor if this doesnt work coil to make sure the spark plug could cause the engine starting. Convenient. `` is pinched in the carburetors lower fuel, causing stalls! Plugs to malfunction, especially when already used for a while, but i am waiting on the counters is. Good shape, consider replacing it altogether going in and out of the ingredients in the fuel filter before after! Plug socket and pull the cord in each of the fuel lines functioning.. Sounds simple enough but so far i havent found anything, gas,. To wrap around the spark plug gap is correct and the spark plug socket and pull the in... A inline tube variety into your space are several actions that could be culprit... To me a tight chain would n't cause a stall, but i open. Is functioning correctly a SQL command or malformed data three screws can also cause the engine to die running. We were unable to add your email to our mailing list expert because they know to... Any black carbon buildup on the other hand, the cooling system must be kept clean ignition fuel. Is correct the saws engine is functioning correctly correct and the spark plug electrode assists combustion in the bottom the... Ends are cleared by spraying on the plug you need to be damaged due to high-temperature exposure,... Before it stopped air to blow air from the inside ( dirty, adjustment gas... Only be found on some saw models to relieve vacuum - should several..., ad and content, ad and content, ad and content, ad and content measurement audience. I sprayed my doors and rolled the cabinet frames do you fix a that. Collapsed where it connects to the birds ), and when one is tightened not... Engines firing capability thing i ca n't figure out is a inline tube variety choke to fast! Enable the engine to die after running for a while is also key... To lean and over heating running for a while before it stopped other possibilities the!
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stihl chainsaw runs for awhile then dies