These cause clogs, which lock vapors in the tank and prompt engine bogging. As a result, your engine will tend to slow down and eventually die out as the supply of gasoline falls short of the amount necessary to sustain the combustion. Continuously firing your chainsaw can cause the spark plugs electrode to experience huge damage, resulting in a degradation in the quality. I would advise you to perform a compression test of your chainsaw before starting it when its cold and after its shut down due to heat. 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. It covers problems with a chainsaw not starting, bogging down, or dying. cascio.offsite@gmail.com. You can remove the plug when it dies and reconnect it and ground it out against the head or jig and pull the rope. Why does my chainsaw start and dies? it's mainly because the piston skirt is swelled and rubbing on the cylinder and rapidly scoring the P/C. #3. If you dont have a tool to perform the test, an indication you may have a plugged vent is if the saw starts and begins to run well with the fuel cap loosened to allow air into the tank. If there is a mismatch, your piston and cylinder have been damaged depending on its extent. If not then pursue why , as you have indicated . It's about 2 years old and has some mileage on it from clearing Hurricane Katrina damage, but it's in good shape. If youre a regular chainsaw user and wonder how to solve the problem, this blog will help. The fuel filters function is to keep dirt from entering the fuel system and damaging the engine. However, when it becomes clogged, the passage of fuel to the engine is obstructed, causing the engine to stall. I like to replace it annually and more often if I begin using the saw more regularly. Low and high adjustment Its function is to control the saws idling speed. If your spark plug is going bad, it can cut out once it is warmed up, and its components have expanded. To prevent this from occurring, make sure that the tank vents are not plugged with dirt or debris. Could it be a bad fuel pump diaphram? Then turn each screw counter-clockwise with the number of turns indicated above the screw. The spark arrestor screen must be inspected regularly and cleaned when needed. i had the fuel line replaced last season. A Stihl chainsaw may require a carburetor adjustment or it may be experiencing a compression problem that is causing it to quit running. The thickness of the fuel mixture can cause carbon deposits to wrap around the spark plug. Chainsaw then works just fine. Its normal for spark plugs to malfunction, especially when already used for a long time. If it appears to be clean, leave it as suchand inspect the carburetor and air filter for debris buildups. If, after cleaning, it still does not appear to be in good shape, consider replacing it altogether. Which of these home luxuries would you like best? Dont let go of the fuel line. Clogged air and fuel filters and clogged carburetor jets are the most common causes of the problem. This buildup is quite likely to occur after prolonged usage and affects spark quality, particularly at higher firing temperatures. flip to run 4-5 more pulls, now it quit all together. The high temperature causes excessive vapor buildup in the fuel lines, preventing the liquid fuel from flowing into the carburetor. Then continue to turn it counter-clockwise 1/4 turn further. 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. Use the proper adjustment screw depending on speed to avoid faulty and tightened screws. 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. +1-213-221-0119, By using this website I agree with the Disclaimer. This blockage eventually causes your engine to run lean and, as a result, bog down. The problem was it was running to lean and over heating. 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). Remove the chainsaws fuel cap and transfer some gasoline into a separate container to inspect the fuel filter. But dirty filters are a common culprit to saw problems. It meant that there was not enough oil for the size of his engine. Take the bowl and bowl nut out of the carburetor. No improvement. 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. opening. If not, can some recommend a different brand mini-chainsaw? Why it is getting hot and how to fix it so it will stay running. Depress the throttle and if it doesnt bog the saw engine, try tightening the low or high-speed. The carburetor may need to be adjusted to correct the fuel-to-air mixture. You will have to replace the carburetor if this doesnt work. The passageways can become clogged and the small components can fail to function correctly which can be the reason the chainsaw stops running. If you find the screen is extremely dirty, damaged, or has holes in it, replace it with a new spark arrestor screen. cleaner. I will also show how to fix a chainsaw that wont stay running. Continue with Recommended Cookies. This guide will talk about the culprits like the spark arrestor, greasy plug, broken fuel lines, and even dirty muffler screens to prevent you from rushing to the hardware store without knowing the problem. 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. When the tank isnt able to vent, a vacuum forms that will prevent fuel from leaving the tank to the carburetor. Use a wire brush to clean the spark plug, and remove any excess deposits. Remove thetop cover, and grab the carb and see if it can be wiggledin relation to the rest of the saw. One of my clients who was using a fuel to oil mix of 50 to 1 reported having an overheating issue. the screw works into the line tank won't vent. Clean the screen with a metal brush. Were here to tell you, Not a Naturally Organized person? Unfortunately, over time, this debris can build up on the filter and create a blockage. The 1 week between starts makes little sense . Performance & security by Cloudflare. Locate the fuel filter at the bottom of the fuel tank. If I don't let off of the throttle and go back to idle, it will die out. Well send you a nice letter with latest posts once per week. Probably a fuel starvation or air leak. Have a Stihl 028 that I picked up used. This sticky fuel can clog up the carburetor . The fuel delivery deals with the fuel flow from the tank to the engine via the carburetor and the fuel lines. Can you easily turn the chain by hand when this happens or is the chain difficult to turn. 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. Throttle Interlock It keeps misuse and accidents for occurring. A dirty or broken spark plug wont provide the consistent spark needed to run the chainsaw. After that, closeit down and start your chainsaw. due to running lean and quitting. It died last week cutting some wood. It is not attractive all winter long (perhaps only to the birds), and not when viewed from the house. 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. I recently came upon a Poulan chainsaw with a single-piston ring in its engine. We are an independent website with woodworking experts sharing the best tips and tricks when it comes to tools, plans, classes, and any need of a beginner or professional woodworker. 453 S Spring St Ste 400 Does anyone know how to fix this? 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. As a result, at wide-open throttle, the lean mixture cannot produce sufficient power forthe engine. Your IP: The saw starts easily and runs very strong for about 15 mins, then dies like it's losing spark or fuel. The compression tester gauge is relatively cheap and can be purchased online or from a nearby hardware store. I alway put a mark on the screw to housing to know where the screw was set and to see it they vibrate one way or the other. New valve = new saw. The atmospheric pressure and the fuel tank pressure should be the same. https://www.ebay.com/itm/SMALL-ENGI880083&hash=item1ea7ca19d0:g:rQkAAOxyqUpQ6VKQ, Firewood, Heating and Wood Burning Equipment. The plug also works in conjunction with the ignition coil, so you should test the coil to determine that your spark plug is in fact the part thats causing the engine to die. 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. Got it to run briefly by shooting some carb cleaner into the intake. This eventually lowers the engines compression, and it doesnt start as a result. Try some carb cleaner spray within the carb and see if it fires if not then compression is an issue . Tweak the L adjustment until its sufficient to, Cedar vs Pressure-Treated Wood Uses, Pros & Cons, Cost, Does Vinegar Remove Paint From Wood? Manual fuel pump Its a mechanism that makes the saw engine easily start. The chain and bar might expand at different rates and sizes. You will need an inline ignition tester to do this. :-(. Connect the tester to the spark plug socket and pull the cord in each of the two cases. The thing I can't figure out is what caused it. There will also be the same excessive carbon deposits in the fuel arrestor. JavaScript is disabled. Vapor lock is surely one of the most common reasons why an engine doesnt start when hot. This post may include affiliate links. When this happens, the vapor is trapped in the fuel tank, resulting in the carburetors lower fuel, causing chainsaw stalls. To view the purposes they believe they have legitimate interest for, or to object to this data processing use the vendor list link below. Ifyou have to keep goosing it to keep it running at idle,then something is wrong. Sounds like a partially blocked pickup body in the fuel tank.This will increase the vacuum in the fuel hose, which in turn causes air to be released into the carb . It's just a line with a (grub) screw in it if clogged or the screw works into the line tank won't vent. :)) 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. It will idle after bogging down, but when I try to power it up it to full speed it bogs down. Good conversation tricky , still can,t get my head around waiting 1 wk rather than verifying fuel to the plug . 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