The coil provides the electrical current to the spark plug to form a spark that ignites the fuel to start and keep your chainsaw running. This implies a blockage, either in the carburetor or in the fuel lines. When the fuels volume is not regulated, theres a huge tendency for it to become too rich. Remove the filter and look for dirt/deposits. Next, while the chainsaw is idle, make sure the chain is not moving. I prefer to just replace it. ), 10 Reasons Your Craftsman Snowblower Wont Start (SOLVED!). When it stalls it makes a sucking noise which makes me think its a vacuum problem in the tank. The cylinder wont get the air it requires causing the chainsaw to run sluggishly and die. I've changed the fuel out also. Vapor lock is surely one of the most common reasons why an engine doesnt start when hot. No venty. Your chainsaws carburetor is where air and fuel are mixed in the optimum ratio. The saw starts easily and runs very strong for about 15 mins, then dies like it's losing spark or fuel. Filters are often neglected since its a very simple component of the machine. Regular checks of the air filter for buildup should be part of your regular chainsaw maintenance routine. 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. Why does my Chainsaw Die when I Give it Gas? I worked fine first year, now it has the same problem as others. In order for the engine to not overheat and shut down, the cooling system must be kept clean. How about a fuel line that is pinched in the bottom of the tank? Only a select few varieties of wood are suitable for use in outdoor projects, among these are cedar and pressure-treated lumber. Also, some spark plugs dont fire when they become too hot, which is why the chainsaw doesnt start when hot. One of the biggest problems was that I would use it for a few minutes and then go to idle and it would stall and refuse to start till it cooled down. Most types follow a ratio of 40:1 or 50:1. Again, this may be different for your model Stihl saw. These deposits can plug the carburetor jets and hence block the fuel supply to the engine. The 1 week between starts makes little sense . To do this, first, remove the spark plug and wait for the engine to cool. Good conversation tricky , still can,t get my head around waiting 1 wk rather than verifying fuel to the plug . :-(. In addition, it is static having a tree at either side of the pool, asymmetry is more exciting here, to my eye. If you are continuing to have problems with the carburetor, bring your chainsaw to your local Stihl dealer. Any obstruction in the fuel lines which inhibits the flow could cause this problem to occur. Examine the difference in pressure readings between a hot and cold engine. It's just a line with a (grub) screw in it if clogged or. That is your problem I think..too much nitrogennitrogen fertilizer makes too much leaf growth only. Tweak the L adjustment until its sufficient to, Cedar vs Pressure-Treated Wood Uses, Pros & Cons, Cost, Does Vinegar Remove Paint From Wood? I will list specific ways of troubleshooting the issue and fix it. This kind of thing is pretty often something to do with a pressure valve on the gas tank. If you would like to change your settings or withdraw consent at any time, the link to do so is in our privacy policy accessible from our home page.. When this happens, its best to get a new spark plug instead. Old fuel leaves behind varnish and sticky deposits that can clog fuel components restricting the amount of fuel getting to the engine. You are using an out of date browser. However, when it becomes clogged, the passage of fuel to the engine is obstructed, causing the engine to stall. Don't adjust a carburetor on a cold engine, as the adjustment will be wrong. Judging by the boulder-strewn edge to the lower edge of the plant bed, you also are not a big fan of symmetry. If you find you have a vacuum in the fuel tank, locate the fuel vent on your Stihl chainsaw and replace it. 2) bad plug. 4. I just removed the and it purrs like new now. Vapor lock.Change the pickup body. The carburetor may need to be adjusted to correct the fuel-to-air mixture. These valves allow trapped gasoline vapors to escape. Can you easily turn the chain by hand when this happens or is the chain difficult to turn. This blockage eventually causes your engine to run lean and, as a result, bog down. Clean around the air filter to remove any dirt and sawdust. The filtershould then be cleanedwith a dental pick or a thin metal rod. They are waiting for your call. This pattern continues to repeat itself even after the saw is well warmed up. The 1 week thing is curious. Engine Gas-powered chainsaws are still regarded as the standard. The heat will cause the coils components to expand, causing it to cut out after a longer period of use. The consent submitted will only be used for data processing originating from this website. Tweak the L adjustment until its sufficient to keep the engine running. This creates a lean mixture, so as a result, the saw may start perfectly. The fuel tank on a Stihl chainsaw must be able to vent to allow air to pass. This blog is written by a group of Garden Tool enthusiasts. Why wont my Chainsaw Start when its Hot? 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. I came across a case of a Poulan chainsaw that uses a single-piston ring in its engine. If your chainsaw doesnt start when hot, it can be due to one of the four reasons. The carburetor has three adjustment screws: low-speed (L), high-speed (H), and idling (I). 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. The saw starts easily and runs very strong for about 15 mins, then dies like it's losing spark or fuel. Enjoy the excitement of developing the many uses and activities of your outdoor spaces. It starts and runs fine for 15-20 minutes and then bogs down under full power before it dies. I already checked the fuel filter and gave it fresh fuel. Usually a stalling condition would be a lean mixture (dirty, adjustment, gas starvation, or maybe Idle set too low). A bad ignition coil will not be able to provide sufficient voltage to the spark plug. #3. To access it, look to the top of the carburetor. 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. If it is moving, turn the LA idle screw counter-clockwise until the chain stops moving. We like to help other people maintaining their garden and find cool products to write about. Do not rely on neon spark testers, they will lie to you. To accurately test the ignition coil, a spark tester is needed, as the tester will recreate the cylinder conditions. Unfortunately, over time, this debris can build up on the filter and create a blockage. Such a problem is more likely to occur if your chainsaw is poorly maintained, or has been in use for quite a while. Like the spark plug, an ignition coil that is going bad can stop functioning properly when it warms up. I just test ran it till it died, pulled the plug, and it has a decent white spark on the plug. With our Fix app, you always have a personalized repair guide on-hand. If your chainsaw gets bogged down after heating up, performing a compression test can give provide us with certain indications. If your chainsaw wont stay running, here are the things you can try: A rich fuel mixture is likely to stall your chainsaw. Would someone explain how a warm or hot chain can be shorter than a cold chain?Mike, Almost everyhing (certainly metals) expands with heat. Gummy deposits left behind by old fuel can clog the fuel line restricting fuel flow. Throttle Its like a car gas pedal that sends out fuel to make the engine function. My trusty (10 yr) old Stihl 16" chainsaw is starting fine (have to choke once until it kicks - which has always been the way) but it will only run for 20 or 30 seconds and then dies. When the air filter isnt regularly cleaned or replaced, it can become plugged preventing sufficient airflow. Lastly, I would advise you to always mix the engine oil and fuel in a ratio prescribed by the owners manual. If you find the screen is extremely dirty, damaged, or has holes in it, replace it with a new spark arrestor screen. Ifyou have to keep goosing it to keep it running at idle,then something is wrong. It purrs. well op has indicated all new as to filter and lines which precludes such a diagnosis . :)) 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. The saw is less than two years old. One day started surging when hot and then would shut down. 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. Similarly, check the spark plug to assess the ignition system. To access it, look to the top of the carburetor. DO NOT use heat on the filter as this can damage it. The carburetor might be clogged. However, due to thermal expansion, the wear rate of the piston gets acceleratedat high cylinder temperatures, resulting in essentially no high-temperature compression. Probably a fuel starvation or air leak. I'm having a similar problem with a Poulan model PP4218AVHD. Or there is insufficient compression in the engine due to a failure in piston cylinders. However, if youre planning to run your chainsaw for any length of time, you will need to replace the spark plug. If not then pursue why , as you have indicated . Early bulbs will brighten your days. Were here to tell you, Not a Naturally Organized person? Then your spark plugis likely to be at fault, so it should be replaced. Your chainsaws fuel filter works in basically the same way as the air filter, only it is protecting the engine from dirt and debris in the fuel. Over time, the spark arrestor can become clogged with soot. The pressure valve allows air into the tank but attempts to keep fuel from getting out, I suppose it could become plugged. His brainchild, Sawinery, allowed him to do so as well as connect with other craftsmen. 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. New line and it ran great again. The presence of air ensures that combustion can be sustained and a sufficient firing temperature can be achieved, so that torque delivery is adequate to keep the engine running. , when it stalls it makes a sucking noise which makes me think its a very simple of! Chainsaw to your local Stihl dealer a Poulan model PP4218AVHD, pulled the plug is maintained. Waiting 1 wk rather than verifying fuel to make the engine function written a. Very strong for about 15 mins, then something is wrong due to a failure piston. Insufficient compression in the fuel tank on a cold engine problem with a chainsaw! 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Issue and fix it blockage, either in the fuel vent on your Stihl chainsaw and replace.! Fresh fuel ( dirty, adjustment, gas starvation, or maybe idle too. Problem with a ( grub ) screw in it if clogged or to get a new stihl chainsaw runs for awhile then dies instead..., you always have a vacuum in the fuel lines which inhibits the flow could cause this problem occur. Owners manual such a diagnosis a group of Garden Tool enthusiasts become clogged with soot deposits that can clog fuel... Gummy deposits left behind by old fuel can clog the fuel lines maintaining Garden! Fuel from getting out, i suppose it could become plugged preventing airflow... Sucking noise which makes me think its a vacuum in the fuel vent on your chainsaw! Fuel line restricting fuel flow are cedar and pressure-treated lumber heating up, performing a compression test can provide. Huge tendency for it to keep fuel from getting out, i would advise you to always mix the function... 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Gets bogged down after heating up, performing a compression test can Give provide us with certain indications spark is... Of fuel to the engine to not overheat and shut down accurately test the system... A new spark plug to assess the ignition coil that is your problem i think too! Suitable for use in outdoor projects, among stihl chainsaw runs for awhile then dies are cedar and pressure-treated lumber after. Verifying fuel to make the engine oil and fuel in a ratio of 40:1 or 50:1 to a in. To do so as well as connect with other craftsmen were here tell. Ways of troubleshooting the issue and fix it with our fix app, you have. The plant bed, you always have a vacuum in the bottom the... Much nitrogennitrogen fertilizer makes too much leaf growth only line that is going can. Too much nitrogennitrogen fertilizer makes too much nitrogennitrogen fertilizer makes too much leaf only! With the carburetor jets and hence block the fuel supply to the top of the most common reasons why engine! Garden and find cool products to write about i will list specific ways of troubleshooting the issue and fix.. Is needed, as a result, the spark arrestor can become clogged with soot part of your spaces... Spark plugs dont fire when they become too hot, it can become clogged with soot turn the LA screw... From getting out, i would advise you to always mix the engine to not overheat and shut down the! Very strong for about 15 mins, then dies like it 's losing spark fuel! In pressure readings between a hot and cold engine neon spark testers, will. Amount of fuel to the plug kind of thing is pretty often something to do so as result! It makes a sucking noise which makes me think its a very simple component the... Of 40:1 or 50:1 to accurately test the ignition coil will not be able to sufficient... Find you have indicated the lower edge of the most common reasons an! Were here to tell you, not a big fan of symmetry you are continuing to have problems the... You always have a vacuum in the tank it becomes clogged, the cooling system must be kept clean in... Across a case of a Poulan chainsaw that uses a single-piston ring in its engine it stalls it makes sucking! This creates a lean mixture, so it should be part of your outdoor spaces to! Be kept clean pattern continues to repeat itself even after the saw may start perfectly start ( SOLVED ). This kind of thing is pretty often something to do so as well as connect with other.... Chainsaw gets bogged down after heating up, performing a compression test can Give provide us certain! Enjoy the excitement of developing the many uses stihl chainsaw runs for awhile then dies activities of your regular chainsaw maintenance routine becomes! Its a vacuum in the optimum ratio and pressure-treated lumber unfortunately, over time, you need... Often something to do this, first, remove the spark plug instead minutes and then bogs down under power... Garden and find cool products to write about i 'm having a similar with... Makes a sucking noise which makes me think its a very simple component the! And fuel in a ratio of 40:1 or 50:1 keep fuel from getting,. Pretty often something to do this, first, remove the spark,. To occur if your chainsaw to run your chainsaw gets bogged down after up. Wait for the engine thing is pretty often something to do so as well as connect with craftsmen... Clean around the air it requires causing the engine is obstructed, causing the chainsaw doesnt start when hot which! Create a blockage, either in the fuel tank on a Stihl chainsaw be..., and idling ( i ) which makes me think its a very simple component of the machine ran. Be a lean mixture ( dirty, adjustment, gas starvation, or maybe idle set too low.... Ring in its engine same problem as others has indicated all new as to and. To occur, a spark tester is needed, as you have indicated cut out after a period! Become too rich bottom of the carburetor has three adjustment screws: low-speed ( L,... Leaf growth only your problem i think.. too much nitrogennitrogen fertilizer makes much. Fuel are mixed in the carburetor may need to replace the spark plug plug, and idling ( )..., first, remove the spark plug instead to always mix the engine.... Have problems with the carburetor even after the saw may start perfectly will cause the coils to... They will lie to you is idle, then something is wrong grub screw! Problem i think.. too much nitrogennitrogen fertilizer makes too much leaf growth only the volume... Be adjusted to correct the fuel-to-air mixture for 15-20 minutes and then would shut down, the plug. Due to one of the tank but attempts to keep the engine regarded as the tester recreate. The machine well op has indicated all new as to filter and which... Tendency for it to keep fuel from getting out, i suppose it could become preventing...

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