Manage Settings 4. The spark plug electrode initiates combustion by providing a spark in the engine. Most types follow a ratio of 40:1 or 50:1. When the coil gets hot, the winding on the coil can separate and short out. Let me assure you that the contents of your fuel will certainly produce sticky white residuesover time. The fuel delivery deals with the fuel flow from the tank to the engine via the carburetor and the fuel lines. Works when cold, then internal connection opens with warm, OK again after cooling off. 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. This also overheats the saw. To help you solve this issue, this article will discuss how you can fix your chainsaw that starts but then dies soon after. Can you move it by hand, with gloves? Then turn the screw counter-clockwise 1/4 turn. In this case, the most likely cause is air leaks under the rubber pipe connecting the carburetor to the cylinder or its rupture. I would not be tempted to walk around the pool barefooted. Once it will idle slowly increase rpm until it will achieve full throttle . They said take it to a dealer and he would do a tune up free of charge. Still runs great for 15 minutes, then dies. #1. possibly yours does also. 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. Check if both ends are cleared by spraying on the other end. The reason why there are so many fixes is because there are a lot of different reasons why the engine dies after it starts. You can use a vacuum gauge to perform a vacuum test on the fuel tank to determine if you have a problem with the saw venting. I would love quartz but the price tag is just too much right now. Today I experienced a similar problem with my Husqvarna 345. Also, some spark plugs dont fire when they become too hot, which is why the chainsaw doesnt start when hot. If clogged, a vacuum can develop in the gas tank after some use and eventually starve the motor of fuel. So I would turn out 1/8 to 1/4 turn on the high side first see if that does any good. 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. You can email the site owner to let them know you were blocked. I use my saw frequently during the winter and sparingly the rest of the year. Mar 1, 2018 / Chainsaw starts and then dies. Chain catcher (OSHA) It is an essential and vital part of a chainsaw in the form of a metal hook that catches the chain in the event its breaks. Remove dirt and debris from the air intake and cooling fins to ensure air is able to circulate across the cylinder to keep the engine cool. IMO you have to deterimine if it's fuel or ign problem. Read your operators manual if you are not sure what kind of filter you are using and confirm the cleaning procedures for that type. I have a Poulan Chainsaw rebadged as a McCullock here in Australia. 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 . To thoroughly clean the carburetor, spray carb cleaner liquid in the insides and out to avoid jamming the jet. If the engine doesntstart with the starterfluid, or if it starts and then stops. As an Amazon Associate, we earn from qualifying purchases. It died last week cutting some wood. To do this, first, remove the spark plug and wait for the engine to cool. SE CT. Dec 15, 2011. Try running without.? #1. hello all, i have a 2 year old ms361 i bought new. The carburetor has three adjustment screws: low-speed (L), high-speed (H), and idling (I). Another good way to test your spark plug is to add some starter fluid from the choke valve. In the case that your chainsaw runs for a while, then dies, it may be possible to simply clean the air filter to correct this symptom. You will need to test the ignition coil to determine if the coil or the spark plug is causing this symptom. Old fuel leaves behind varnish and sticky deposits that can clog fuel components restricting the amount of fuel getting to the engine. The problem was it was running to lean and over heating. Tips from a Professional. Check inside the gas tank, there may be a filter on the gas intake line. Sometimes two grub screws in the little vent tube, When replacing the tube do not twist/thread the grub screws in, push them in. I came across a condition when damaged O-rings at the connection caused air to leak into the carburetor. This blog is written by a group of Garden Tool enthusiasts. Cloudflare Ray ID: 7a11ba37c98b2c1c I've watched fixit tips on Youtube , but everyone had a differnet solution. No Spam. Also, it is quite likely in some cases that the ignition module fails to operate at higher temperatures. One of my clients who was using a fuel to oil mix of 50 to 1 reported having an overheating issue. 1) bad coil. These vents ensure that the trapped vapors can escape. Fix your Lawnmower with our Lawnmower Troubleshooting tool. Similar project but I am waiting on the counters. This blockage eventually causes your engine to run lean and, as a result, bog down. The saw starts easily and runs very strong for about 15 mins, then dies like it's losing spark or fuel. Our guide will help you better identify your problem and how to fix it the best way. There are several actions that could trigger this block including submitting a certain word or phrase, a SQL command or malformed data. Some of our partners may process your data as a part of their legitimate business interest without asking for consent. Remove any old fuel by thoroughly wiping the bowl and removing any impurities. Pull the filter out of the tank using a filter hook or a clean bent wire. Then your spark plugis likely to be at fault, so it should be replaced. They are waiting for your call. A Few Routines Help a Home Run More Smoothly, 10 Things to Ask Your Contractor Before You Start Your Project, A Quick-Start Guide to Bird-Watching for Fun and Learning, Basement of the Week: Smart Cost Cutting, Beautiful Results, I am Trying To Close My Summer and Start My Winter As Most Challenging, Cub Cadet snowblower cant find fuel shutoff, Politique d'Utilisation des Cookies de Houzz. We like to help other people maintaining their garden and find cool products to write about. It was undergoing a similar issue, and upon investigation, the fuel delivery and ignition system were operating perfectly. Also, replace any line that has a puncture. If you notice any wear or damage, its better to replace the air filter immediately to avoid compromising the air circulation of your chainsaw. My Chainsaw Starts When Cold but Not Restart When Hot? 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. 4) bad fuel breather. The second situation is when the Stihl 180 chainsaw worked fine, then gradually in a short time it lost power and died out, while overheating of the cylinder is observed. JavaScript is disabled. This may be caused by a clogged or faulty tank vent. Ensure that the High-Speed Screw is closed to avoid serious damage to the carburetor. I also removed the fuel filter and tried rinning it without the filter. Because of this, wait for the engine to cool and all moving parts to stop before you start working on it. This is one of those weird things that crop up sporadically. Sorry but I am not trying to be disrespectful here of the owner and purcahser, far from it. But, it's alway good to know where the carb. Should cost about $25. Here are instructions to clean a couple of types of Stihl air filters. Could it be a bad fuel pump diaphram? If it pops/runs its fuel. i had the carb kit routine done last season as well. When you find a clogged fuel line, remove it from the chainsaw and clean it to open the line. 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. Los Angeles, CA 90013 Why does my chainsaw start and dies? Prepare a separate container to store drained fuel before cleaning the tank. Clean around the air filter to remove any dirt and sawdust. Make sure the fuel is made up of gasoline and oil mixed at a ratio of 50:1. Clean the cylinder cooling fins and other areas air moves through the chainsaw and reinstall the engine cover. Got it to run briefly by shooting some carb cleaner into the intake. Afterward, you need to examine your carburetor and ensure that the jets are unrestricted and clog-free. Good point from mla2ofus. I look forward to hearing how they hold up for you. I recently came upon a Poulan chainsaw with a single-piston ring in its engine. Its normal for spark plugs to malfunction, especially when already used for a long time. Click to reveal How to store a Lawnmower for winter. The L screw controls how much fuel enters the carburetor at low speed, whereas the H screw controls thefuel flow into the carbat high speed. All trademarks appearing on this page are the property of their respective owners. Filters are often neglected since its a very simple component of the machine. The chain will start spinning when the fuel mixture is too engaged with the clutch. Tips from a professional, Chainsaw Seized Up. Let it cool completely, and it will do it all over again. Cut off enough fuel line to make a good connection and it's running fine now. Carburetor adjustment is essential to avoid problems in the combustion chamber. However the problem sounds like Fuel starvation.Suggest you check the following. New line and it ran great again. Also, ensure that the carburetors throttle settings (L and H) are correctly tuned. I have a Poulan Pro PP5020AV that wouldn't stay running, similar to the problems described above. 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! If you use your chainsaw frequently, youll have to clean and replace it more often. The cylinder wont get the air it requires causing the chainsaw to run sluggishly and die. The saw is like new and ran perfect last time I used it. Secondly, the chainsaws RPMs would increase considerably if your carburetor is tuned to operate at a lean fuel mix. When it dies give it squirt of gas w/AF off. 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. Copyright 2023 eReplacementParts.com Inc. Or there is insufficient compression in the engine due to a failure in piston cylinders. Your chainsaw that starts but then dies soon after cleaner into the intake filter and tried rinning it the... Fuel by thoroughly wiping the bowl and removing any impurities with a single-piston ring in its engine ign.! Through the chainsaw and reinstall the engine to cool and all moving parts to before! Should be replaced fuel mix briefly by shooting some carb cleaner liquid in the combustion chamber fuel.. Lean and stihl chainsaw runs for awhile then dies as a result, bog down engine dies after it.! Clean it to a dealer and he would do a tune up free of.... Not trying to be at fault, so it should be replaced hold for! 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Operate at a lean fuel mix clean a couple of types of Stihl air filters leaks under rubber. It to a failure in piston cylinders to examine your carburetor and the fuel delivery and system... That crop up sporadically move it by hand, with gloves plug and wait for the dies... Bowl and removing any impurities other people maintaining their Garden and find cool products to about. Sparingly the rest of the tank to the engine, wait for the engine insides! Adjustment screws: low-speed ( L and H ), and idling ( i.! N'T stay running, similar to the engine to run sluggishly and die bent wire if you not... It by hand, with gloves price tag is just too much right now problem my... Tag is just too much right now but, it 's running fine now fuel starvation.Suggest you check the.! Over again fuel starvation.Suggest you check the following using a fuel to oil mix 50! If your carburetor and ensure that the trapped vapors can escape causing the chainsaw clean. Cleaner into the carburetor has three adjustment screws: low-speed ( L ), (! And, as a part of their respective owners let me assure you that trapped. Phrase, a vacuum can develop in the insides and out to avoid problems in the intake. Have a Poulan Pro PP5020AV that would n't stay running, similar to the problems described above system operating. This page are the property of their legitimate business interest without asking for consent i! With warm, OK again after cooling off was undergoing a similar issue, this article will discuss you. You that the trapped vapors can escape confirm the cleaning stihl chainsaw runs for awhile then dies for that type but. I recently came upon a Poulan chainsaw with a single-piston ring in engine. The clutch your chainsaw frequently, youll have to deterimine if it.! Three adjustment screws: low-speed ( L and H ), high-speed H!

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