These parts get clogged when there are unruly debris and deposits. Choke is the little spring loaded flap inside of air filter. Pull cord Its the chainsaws startup mechanism. Another good way to test your spark plug is to add some starter fluid from the choke valve. This post may include affiliate links. Too many options, get help from your local professionals. Unfortunately, over time, this debris can build up on the filter and create a blockage. When the fuels volume is not regulated, theres a huge tendency for it to become too rich. Use the proper adjustment screw depending on speed to avoid faulty and tightened screws. I sprayed my doors and rolled the cabinet frames. The 1 week thing is curious. IMO you have to deterimine if it's fuel or ign problem. To clean your carburetor, you would first need to take it off by removing the air filter. Moreover, examine the plugselectrode for signs of black carbon deposits. The problem lies in your ignition and must be fixed. If you have a moment to pick up a book at the library, seek out Richard Louv's latest, called Last Child in the Woods - Saving our Children from Nature-Deficit Disorder, it will change your life and your children's future development. Chain Its the most important piece of the device, which does the cutting. Some testers are adjustable so you can stress the coil beyond the power needed to fire the spark plug, giving you an idea of its overall condition. However, due to thermal expansion, the wear rate of the piston gets acceleratedat high cylinder temperatures, resulting in essentially no high-temperature compression. 4) bad fuel breather. Before proceeding with the carburetor, one important area to check is the filters. 2022 LawnMowerForum.com. Occasionally replacing the fuel filters is recommended for maintenance. Also, some spark plugs dont fire when they become too hot, which is why the chainsaw doesnt start when hot. i'm german, i need it !!! Turned out to be a plugged up muffler. I was hoping someone on the forum owned one, and could offer first-hand advice. i had the fuel line replaced last season. We recommend asking an expert because they know better to work on an engine, and you can avoid possible complications. 79Fiesta. Never run your engine at WOT, as this can damage the engine components considering the lean fuel mixture it is operating at. End result? Examine the difference in pressure readings between a hot and cold engine. Its normal for spark plugs to malfunction, especially when already used for a long time. Don't adjust a carburetor on a cold engine, as the adjustment will be wrong. 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. Bucking spikes It aids the chainsaw in doing the cutting task instead of stressing your arms. i can start it and it revs up and dies, over and over again, lightly used saw, i always put fresh 93 mixed gas in , used at . (Be careful when loosening the cap as the tank may be under pressure). Does anyone know how to fix this? So would removal and replacement of fuel cap to relieve vacuum - should allow several more minutes of running if the sasquatch is correct. Can you easily turn the chain by hand when this happens or is the chain difficult to turn. This quickly overheats the guide bar and chain. These screws have different functions, and when one is tightened or not set properly, it can restrict fuel flow or cause RPMs. Depress the throttle and if it doesnt bog the saw engine, try tightening the low or high-speed. Please include what you were doing when this page came up and the Cloudflare Ray ID found at the bottom of this page. You never want to run your chainsaw without an air filter. If you use your chainsaw frequently, youll have to clean and replace it more often. Chainsaw then works just fine. 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. But compression measures the piston area which is sealed by piston rings but where the fuel pump impulse connection is made below the piston rings has the case seal and bearings to leak air, and the impulse tube being polymer is subject to age degredation and collapse, even a sticky collapse like a failed fuel filter which could seal the case volume and release over a week due to sheer volume. Ensure that the High-Speed Screw is closed to avoid serious damage to the carburetor. Solution: Filter Examination and Replacement: How do you Fix a Chainsaw that wont Stay Running? Ifyou have to keep goosing it to keep it running at idle,then something is wrong. Throttle Interlock It keeps misuse and accidents for occurring. Here are instructions to clean a couple of types of Stihl air filters. Sprinkle a carburetor cleaner. If the carburetor is improperly tuned or adjusted, it may cause the engine to die after running for a while. Inspect the condition of the spark plug tip. The machine started up fine but died out after a few seconds (when I press the accelerator it stops). Also, open your fuel cap for some time and allow the pressure to equalize. These deposits can plug the carburetor jets and hence block the fuel supply to the engine. Use quality line made for fuel if OEM is not handy/available. I've replaced the Coil, sparkplug,( and its properly gapped) fuel filter and rebuilt the carburetor and the fuel lines are cleaned. Also, it is quite likely in some cases that the ignition module fails to operate at higher temperatures. Together we put a lot of effort into the maintenance of our gardens over the last few years, we become obsessed with it. Your IP: A shot of fuel into the carb soon after it stalls might be a good diagnostic. Most Poulan chain saws use fairly common Phelon electronic ignition coils. A vapor lock in the fuel lines is the most common cause of your chainsaw running slowly or dying. This is a great guide to keep bookmarked. Steps we took to get to the final result. This would mean you may need a new chainsaw altogether. Continue with Recommended Cookies. The mass flow rate of the air-fuel mixture entering the engine at idle is controlled by the idling (I) screw. Old fuel is a big reason why a Stihl carburetor will stop working. :-(. I have seen plenty of cases where experienced users run their chainsaws at WOT when it gets stuck while cutting wood and eventually destroys their chainsaws. 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). A chainsaw troubleshooting guide, Saving Your Chainsaw With Chain and Bar Oil, Beech Firewood: Everything you need to know, Common reasons why a chainsaw starts then dies, How to Cut a Log Lengthwise with a Chainsaw, Best air compressor under 200 Top 6 reviews and buying guide 2021. How is the impulse line? Eventually, your engine would die out when hot as it doesnt receive adequate fuel to produce the required power. The screen inside got plugged with carbon. Read morehere. This blockage eventually causes your engine to run lean and, as a result, bog down. You may well be right that crank seals or gaskets could be compromised . Continuously firing your chainsaw can cause the spark plugs electrode to experience huge damage, resulting in a degradation in the quality. You might have intermittent ignition coil. A Stihl chainsaw may require a carburetor adjustment or it may be experiencing a compression problem that is causing it to quit running. I'd be agreeing with the sasquatchman and a fuel related problem, or possibly even a fault with the ignition when it gets hot. When you rev it up, the increased temperature elevates the vapor pressure, limiting the fuel supply entirely and affecting the engine RPMs. I also removed the fuel filter and tried rinning it without the filter. New line and it ran great again. Why do you want a plant bed adjacent to the pool, to beautify it during the winter from your kitchen window? It appears that there is a lot more going on than a concern with tree litter. I recently came upon a Poulan chainsaw with a single-piston ring in its engine. However, a damaged air filter should be replaced. Mine will stall if the chain gets too tight, but I don't wait till it cools down. Furthermore, the spark plug provides the ignition to initiate combustion. possibly yours does also. Start the Stihl chainsaw and allow it to run for about 10 minutes to warm up. due to running lean and quitting. Remove the engine cover and remove debris from the cover and around the outside of the cylinder. Is this indicative of a good coil or should there be a strong blue spark? This may cause the saw to die out when hot. I will list specific ways of troubleshooting the issue and fix it. Chainsaw won't stay running. It died last week cutting some wood. When you find a clogged fuel line, remove it from the chainsaw and clean it to open the line. when letting off the throttle the engine will idle ruff and after a few seconds die. However, if youre planning to run your chainsaw for any length of time, you will need to replace the spark plug. Wear your gloves when doing this. Use a tachometer to gauge the correct high-speed adjustment setting, as manual gauging can be overwhelming. so if anybody can help with hot idling problem I would appreicate it. If it pops/runs its fuel. 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. 4-5 pulls with chock on, then it starts to run. Crape Myrtle stops growing after spring. I have a T435 Husqvarna chainsaw. Over time, the spark arrestor can become clogged with soot. You are using an out of date browser. Had a similiar problem with a Poulan 2450 several years ago. Purchase and install a new air filter if the old filter is extremely dirty or damaged. My Stihl has one. Collaged vent holes can cause vapor locks. The expansion is the result of molecules moving or shaking faster amongst themselves (whick is actually the definition of heat) and that takes more room than the same molecules shaking less in a colder condition. Probably a fuel starvation or air leak. Our step-by-step decorating guide can help you put together a home look you'll love. However, its is an inconvenience that woodworkers commonly face, which is why its a must to replace the fuel filter to avoid a faulty fuel flow. Check the manual provided by your owner for more specific repair information related to your model. The carburetor might be clogged. Service manual for 038 says one screw in the top end, the other 3/4" from the bottom. I have a Poulan Pro model PP4620AVX, 46CC, and mine stalls out when I go to gas it. The expansion makes the chain longer. 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. Look up "McCullock chainsaw tool" for the postings and you will find instructions in making the tool and a source where you can buy one. It may provide intermittent spark causing the saw to lose power and possibly die. 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