This is also the key to prevent piston failure. You can try to clean the spark plug with a wire brush and reuse it if its just a little dirty. Before checking your fuel, make sure you allow the saw to cool. This website is using a security service to protect itself from online attacks. Replace your spark plug if the electrode appears worn out. Make sure the spark plug gap is correct and the spark plug wire is securely attached. The carburetors jets could be clogged with fuel deposits. Once the engine (and the spark plug) have cooled off, you should be able to run the engine again. It may not display this or other websites correctly. Over time, some of the ingredients in the fuel may evaporate, leaving behind a thicker, stickier substance. Also, sounds like your drowning yours with that sprinkler system. Gauge and tighten correctly to make sure its the right hold. You will have to replace the carburetor if this doesnt work. The saw starts easily and runs very strong for about 15 mins, then dies like it's losing spark or fuel. The most common problem causing your chainsaw to run slow or die out is a vapor lock in the fuel lines. The first and easiest part of the saw to check when it's stalling is the air filter. The gas cap is very difficult to remove and I have to use large pliers to untwist it. "Love the flexibility of the app to add everything in the home and garage. I typically change the fuel filter before and after the winter season. Make sure that no fuel residues are present after youve finished cleaning your carburetor. worn ring increases gap end when hot and loss of compression causes stall. 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. Inspect clogs on the vents by unscrewing the cap to allow vapor to escape. The 1 week thing is curious. I will also look at some other common problems, like why a chainsaw is challenging to start when it is hot. Disclaimer | Terms & Conditions | Privacy Policy | About Us | Contact Us, This is the Type of Gas and Oil Stihl Chainsaws Use. Ensure that theres no vapor lock in the fuel tank. Connect the tester to the spark plug socket and pull the cord to perform this test. Check for any gaps that could be the culprit to ignition and fuel issues. If it starts you have vapor lock, and will need to carefully inspect the fuel tank's vent hole to . You must log in or register to reply here. Yeah. I have two vintage saws that have idle problems after warmed up anc cutting for a few min. 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. This also creates a hard starting condition. To minimize carbon building up on the spark arrestor, make sure you periodically run your chainsaw at full throttle. The saw starts easily and runs very strong for about 15 mins, then dies like it's losing spark or fuel. No improvement. The problem lies in your ignition and must be fixed. SE CT. Dec 15, 2011. Doing so will put the engine at risk of permanent damage. Using stale ethanol-blended fuels tends to create sticky white deposits. To access it, look to the top of the carburetor. Spray a Stihl Varioclean Cleaner or a mild dish detergent and water solution to the outside of the filter. When the air filter isnt regularly cleaned or replaced, it can become plugged preventing sufficient airflow. Hence, always inspect the filters and make sure they arent plugged with any debris. Let it cool completely, and it will do it all over again. Together we put a lot of effort into the maintenance of our gardens over the last few years, we become obsessed with it. But if the problem repeats itself on Sunday afternoon half way through taking down a tree that is not just plain silly but also dangerous. An example of data being processed may be a unique identifier stored in a cookie. The fuel tank can be under vapor pressure while hot. This is a common problem that mainly occurs with older chainsaw models. Los Angeles, CA 90013 Simply put, you run it for awhile, and it vacuums itself out of gas. 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. Ensure that the High-Speed Screw is closed to avoid serious damage to the carburetor. The bar also gets hot and expands. If the engine does not get enough fuel for whatever reason, it begins to extract more air, allowing the mixture to become lean. If you buy something through our posts, we may get a small commission. 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. Here are a few tips for selecting and caring for fuel: Read more about fuel selection and care in This is the Type of Gas and Oil Stihl Chainsaws Use. Op has not gotten back to us since Monday , apparently has moved on lol . I have a Husky 51 that had same problem. I also have a Poulan with the same behavior. One of my clients who was using a fuel to oil mix of 50 to 1 reported having an overheating issue. Choke is the little spring loaded flap inside of air filter. To view the purposes they believe they have legitimate interest for, or to object to this data processing use the vendor list link below. 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 . Is this indicative of a good coil or should there be a strong blue spark? Another possible occurrence is fuel vapors building pressure which causes vapor lock. On and of switch plus choke Its all managed by one lever. Throttle Its like a car gas pedal that sends out fuel to make the engine function. This means air is what cools the engine. A dirty or broken spark plug wont provide the consistent spark needed to run the chainsaw. Bad coil, test it with a meter next time it die's. :)) 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. Check the carburetors jets and make sure that they are kept clean and free of debris. This setting varies by model. Check the manual provided by your owner for more specific repair information related to your model. End result? Check your electrode for signs of wear and strain. Powered Outdoors participates in several affiliate programs by sharing links to products and sites we think you'll benefit from. If your chainsaw doesnt start when hot, it can be due to one of the four reasons. Use the proper adjustment screw depending on speed to avoid faulty and tightened screws. 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. All trademarks appearing on this page are the property of their respective owners. Had it for years and ran great. Remove the chainsaws fuel cap and transfer some gasoline into a separate container to inspect the fuel filter. Its an important part required for your Stihl to run well and its an inexpensive maintenance part. Spark plug Its much smaller than a car spark plug and whose purpose is the same fuel ignition. Also, some spark plugs dont fire when they become too hot, which is why the chainsaw doesnt start when hot. Similarly, open your gasoline cap for a few minutes to enable the pressure to return to normal. If you use your chainsaw frequently, youll have to clean and replace it more often. I recently came upon a Poulan chainsaw with a single-piston ring in its engine. 4) bad fuel breather. Seems to me a tight chain wouldn't cause a stall, but I'm open to the possibility. If you are continuing to have problems with the carburetor, bring your chainsaw to your local Stihl dealer. This pattern continues to repeat itself even after the saw is well warmed up. It can be due to a vapor lock in the fuel tank. Receive money-saving advice and special discounts! How long the chainsaw runs before dying depends on how badly clogged the air filter is. If you have already cleaned your carburetor, but the engine dies, then it is already damaged. 2. Feb 27, 2017. Check if theres any black carbon buildup on the electrode. Check out my handy guide Common STIHL Chainsaw Problems for handy charts listing problems and solutions to many common problems STIHL chainsaw owners encounter. The saw is less than two years old. After the engine has been running awhile, it dies. DO NOT apply oil to the filter. Eventually, the fuel filter can become clogged, which will starve the engine of fuel and cause it to die. There are also many other possibilities but the saw if of current generation is probably not worth the time, money and effort. There shouldnt be a vacuum. Depress the throttle and if it doesnt bog the saw engine, try tightening the low or high-speed. 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. Or starts and stalls. You can also find information on a chain not turning, the engine only running with the choke on, and more. Turned out to be a plugged up muffler. it sounds simple enough but so far i havent found anything. Ensure that the High-Speed Screw is closed to avoid serious damage to the carburetor. Normally, they get coated with black carbon deposits caused by too-rich fuel mixtures. 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! 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. Fuels tends to create sticky white deposits this doesnt work your gasoline for! 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