"url": "https://www.yesterdaystractors.com/graphics/smllogo.png", It was easier to pull after I cleaned it up, but still tough. The Stihl chainsaw comes with a sturdy body, strong teeth, and a smooth rotating bar to help you cut through trees, ice, and even concrete with ease and precision. Don't put water into the 2 stroke. "interactionStatistic": { Any help out thereEGBinOR Get you some Sea Foam at the local auto parts store. Once it's removed, you can place a gauge on the place of the spark plug. However, you still have to confirm the size of the gap before installing. It is best to put a new plug in after clearing. $99.95. Every time you fuel the chainsaw, you should make sure to drain the old fuel first to avoid contaminating the new fuel. More information can be found on this page. If the air filter is too clogged, you should replace it. Every chainsaw requires a different compression level according to its built-up and model number. Also take the spark plug out and do the same. If it does maybe it is plugged. The carburetor is a significant part of the chainsaw. On a 2 stroke the water would go into the crank case first and pool up. It is possible however to flood a two stroke which can cause the plug to fowl. A faulty spark plug will have carbon, dirt, and oil blocking the insulator nose, preventing it from firing consistently. Carboned rings will decrease not increase compression. I changed to synthitic. You are misunderstanding WHY water is put into carboned up engines. I love to write about chainsaw for homeowners and professionals. Remove the entire carburetor and clean it. Manual for my Stihl saws and leaf blower says to scrape carbon out of the exhaust port. There is no carbon build up and all looks like new. "@type": "ImageObject", You may also want to go ahead and replace the plug. Also try removing the spark plug and see how pull starter works, just trying to see if it could be binding in the recoil/starter assy or not. Yes I tried that last time and it did help some. "height": 57 Most Stihl chainsaws have a resistance of 0.2-3.0 ohm on the primary coil and 5-20 kiloohm on the secondary coil but always confirm the correct reading for your model number. Currently I live in Austin, United States. It prevents the carburetor from allowing too much fuel into the combustion chamber. You're familiar with how to start a stihl yes? I've got four other Stihl saws here, an 029, 036Pro, 015L, and an MS200T, only the 36Pro pulls this hard and only if I don't use the decomp button. Then, use a wire brush to remove all the carbon build-up from the cylinder and piston. Follow the steps below on how to fix a flooded chainsaw engine. Press J to jump to the feed. When the engine starts running, turn the choke off. Disconnect the spark plug from the engine and inspect if it is damaged, eroded, or dirty. Finally the fuel will be converted into energy. "@type": "Organization", How Many Amps Does a Garage Door Opener Use? lol. Other than that, you should also use the correct spark plugs for your chainsaw. When starting, slowly pull the rope to where it pulls hard before starting your actual starting pull. Would not be afraid to do it to a 4, 6, or V-8. Turn off the choke by pressing the control lever to activate the fast idle. Because of an absence of lubrication, the chain saw system becomes brittle, resulting in excessive compression of the chain saw mechanism. Save my name, email, and website in this browser for the next time I comment. Change in temperatures and dirt will cause clogging anywhere the oil passes, and this can prevent the oil from spread all across the bar. Could your gauge be off a little? Check the spark plug of the chain saw if the engine is not starting at all. No it wouldn't go straight to crankcase because you would spray a light mist through air intake with hot engine and let it run for a while, (quoted from post at 00:57:42 08/18/17) My chainsaw has gotten very hard to pull the rope. Here is a link for two stroke engine air cycle. If a chainsaw has a 2 stroke engine, then the maximum compression it requires is 110-130 PSI. When there is too much fuel, it will not ignite, and the engine wont start. Admitted Woodaholic. Carbon build-up in cylinder & piston, bad needle bearing, overused starter spring, oil in the starter system, old or bad fuel, etc can cause too much compression in Chainsaws. I was given (estate) a small McCulloch chain saw and it started and ran great. Detailed, well-researched, and accurate home and garden information presented in an understandable format is our primary goal. Have had it into dealer and nothing wrong with it and dealer said that from time to time they see saws come in with nothing wrong with them but have increased compression. Check the chain oiler and ensure it is functional. Consequently, always use the right oil and make sure that your chain saws starting mechanism is lubricated to prevent excessive compression while starting the saw. Does the saw have a compression release? Spark plugs that are not functioning properly are another probable cause of excessive compression. However, this will vary by model and compression readings alone are not enough to determine the condition of the engine. Cleaned air filters and both were very dirty. It is like there is too much compression. after that I'd be looking at crank bearings. Oct 24, 2011 / Chainsaw excessive compression #1 . Stihl chainsaw compression test Joe_Power Jun 2, 2015 Not open for further replies. It has barley been used, no carbon in muffler, still happens with muffler off, does not happen with sparkplug out. Also try removing the spark plug and see how pull starter works, just trying to see if it could be binding in the recoil/starter assy or not. Carboned rings will decrease not increase compression. Use of this Web site constitutes acceptance of our. It works when cold-starting the engine, when the engine is idle and when the engine is open. Most of the time, the chainsaw cord became hard to pull because of the Starter Housing. Take off the muffler or the carb to get access. Try blowing the crankcase out with air. Of all the Stihl saws, the MS250 is the toughest to start in relation to it's size. Guido Quoting Removed, click Modern View to see What?? To fix this problem, turn off the chain saw and let it sit for about 30 minutes to allow the excess gas to evaporate. It would give you rusted bearings. You never try to get it to run with the choke on. How Much Compression Should a Chainsaw Have. Normally it's not a problem but if it was already difficult to pull it could be. If the chainsaw still wont start, it is defective and requires a replacement. A two-stroke gas-powered chainsaw uses relatively few moving parts. I bought 2 032 Stihl saws at auction that pulled very hard. "text": "My chainsaw has gotten very hard to pull the rope. As stated it is with a hot engine so the water turns into steam in the cylinder and helps bust up the carbon. This could be understood by reading the further explanation below. If it looks physically fine after cleaning it and you havent changed it in a few seasons, you should still replace it. Reddit and its partners use cookies and similar technologies to provide you with a better experience. By accepting all cookies, you agree to our use of cookies to deliver and maintain our services and site, improve the quality of Reddit, personalize Reddit content and advertising, and measure the effectiveness of advertising. Check for any cracks and damages and replace if necessary. STIHL MS 170 Chainsaw (NEW) full pack $295.00 $59.00 shipping Stihl MS170 Chainsaw Motor Fast Free Shipping $75.00 Free shipping or Best Offer Stihl 16 inch bar + Chain for MS170 - MS251 3/8 Pitch .043 Gauge 55 drivers $79.75 $25.45 shipping Only 3 left Stihl MS170 Chainsaw motor OEM Fast/Free Shipping $85.00 Free shipping or Best Offer The switch might be damaged or the motor is burned out. Check the spark plug and replace it if needed. chain saw compression release mod. Don't know what to do at this point. Winterizing a pool is an important step in maintaining the longevity and health of your pool. For 503552201 Cylinder Compression Plug Package Include: 3 x Cylinder Plug Cylinder Compression Plug I would never put water in it! Stihl MS 250 Chain Saw: The pull start will barely move the flywheel. Remove the air filter, wash it with detergent and water and scrub off the dirt with a brush. The ignition system is responsible for igniting the fuel and air mixture to produce energy that powers the chainsaw. Move the selector lever up one position immediately or the saw will flood on the very next pull. "@id": "https://www.yesterdaystractors.com/" Clean any mildly dirty parts and replace all the damaged parts. Manage Settings Maybe take the plug out & pull the cord several times to blow out any excess fuel, then see how it pulls. When you start your chainsaw, the crankshaft spins, creating vacuum pressure on the carburetor, pulling the gas from the tank and into the combustion chamber where it mixes with air and ignites. Similarly, a 4-stroke engine needs 2 times more compression than a 2-stroke engine, around 180-210 PSI. Chainsaws are very powerful tools, and if theyre not properly maintained, they can easily overcompress the chain, which can cause it to break. I would suggest clearing the cylinder by pulling the rope with the plug out. Have had it into dealer and nothing wrong with it and dealer said that from time to time they see saws come in with nothing wrong with them but have increased compression. Typically, several reasons cause too much compression in a chainsaw and these include but are not limited to: Another common cause of chainsaw compression problems is a faulty quantity of old gasoline. Register today and take advantage of membership benefits. Your email address will not be published. Cylinder Compression Plug Applicable Model For STIHL 021, 023, 024, 025, 026, 044, 046, 066, MS210, MS230, MS240, MS250, MS260, MS341, MS360, MS440, MS460, MS650, MS660 Chainsaw Parts Refer To Part No. The exhaust is black but no build up. Locate the spark plug from the top of the engine underneath the chain brake handle. Would have to remove spark plug and rinse cylinder with gas to be able to start. Fuel filters trap dirt and contaminants from the fuel to prevent them from damaging the engine. It will be apparent if it is, but usually a scored saw won't run good, if at all. Ron Cook. Likewise, low compression in the engine will be slow and retarding and it is a warning sign of leakage in your engine. I;ve read somewhere to put water? Pull trigger and set full choke. Remove The Chainsaw's Spark Plug Set The Pressure Test Gauge Tug On The Chainsaw's Starter Rope Reset The Chainsaw's Spark Plug Do The Thumb Test Remove The Spark Plug Place Your Thumb Over The Hole Tug On Your Chainsaw's Starter Rope Problems Caused By Too Little Or Too Much Compression Low pressure in a chainsaw High compression in a chainsaw You can clean and mildly clogged carburetor but if it is too severe, replace it with one compatible with your chainsaw model. { Make sure the crank taper is clean and the flywheel taper also. There is no idle when I release the trigger. The correct tension of the chainsaw chain should be slightly loose on the guide bar but tight enough that you cant pull the drive links out of the bar to fix the chain tension issues; follow the steps below. It's also possible the piston or cylinder are scored or carboned up. If you notice the treads are worn, which prevents the device from pumping, replace it with a new one. How big a fella are ya? let it idle over lunch, just made sure to not go too long between filling it with gas, while running of course. Make sure there is oil in the engine. As stated it is with a hot engine so the water turns into steam in the cylinder and helps bust up the carbon. I used to have a Homelite that would do that if I left gas in it. If you see any unusual movement of spring, then take it in to replace it. If any part of a carburetor has issues, the right amount of fuel/air mixture wont pump into the chamber, therefore, preventing the engine from starting. A heavy-duty chainsaw requires a large amount of compression, whereas a chainsaw with a smaller engine needs less compression to convert fuel into energy. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright . I hook up a drill to the nut on the clutch and start hard starting saws that way . If you could start an engine with the choke closed and not turn off the choke on time, you will end up flooding the engine with too much gas. Turn the brake off. Can also be used with hedge trimmer attachment HS 246. Create an account to follow your favorite communities and start taking part in conversations. I think that's what happened, although I didn't think such a small amount could do it. Stihl 291 chainsaw too much compression Check the compression of the engine. If you recently refueled your Stihl chainsaw, stale gas can be a reason why it wont start. At this point, the battery will reset,, Read More How To Reset Echo 58-Volt Battery ChargerContinue, The chainsaw battery charger is constantly blinking red, even after charging for a long time!!! Don't know what to do at this point. 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. Ensure the wires leading to the On/Off switch are not tangled or in contact with the metal part of the engine if there is no spark. OEM GOOD USED STIHL 048AV CHAINSAW SHORT BLOCK ENGINE 120 PSI COMPRESSION. I tried draining the crankcase with the saw upside . Therefore, it does not need any compression rate to start. Repair or replace the damaged part 2. Does the saw have a compression release? Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. "@type":"DiscussionForumPosting", I've seen it happen a couple times. TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. By getting your pool ready for the winter, you can make sure it will be ready to use in the spring. Final step: removing the old spark plug and installing the new one. If so, show him how to start it on the ground with his foot in it or with the rear handle between his thighs. I'm an arborist by profession & a blogger by passion. When it comes to compression values, those between 90 and 110 psi are deemed to be acceptable. Stihl oil has been used. Subsequent starts are just as hard. Not sure it would accomplish anything on a 2-stroke chain saw engine. John Deere and its logos are the registered trademarks of the John Deere Corporation. My first chain saw was an old Homelite EZ with a blue metal case and a 20" bar. If repeated cleaning does not fully unclog the carburetor, you will have to replace it. You will notice the compression less. I bought 2 032 Stihl saws at auction that pulled very hard. Pour starting fluid into the carburetor and crank the engine several times. A chainsaw with no spark will shut down suddenly or not start at all. The early 064, 044, 066 came with a red master control. "datePublished": "2017-08-17", Mar 24, 2019. runs way too fast. Greenworks Commercial GS181 82V 18-inch Chainsaw: 50cc gas equivalent power with a stock 18-inch bar and chain ( starting at $349) I've done it to high hour Kohler engines many times. A highly compressed engine will not be able to work smoothly because of the too much pressure on engine and you will find it hard to start the engine. Below are the reasons the chain keeps coming loose and how to fix it. Don't put water into the 2 stroke. Thanks! Below we have discussed the most common reasons why your chainsaw wont idle and the best way to fix it. #1. I used to have a Homelite that would do that if I left gas in it. That model is extremely easy to flood. Apparently gas would seep int crankcase and over several months of setting gas would evaporate leaving oil behind and first time it was pulled would suck oil into the cylinder. Could be the main bearings are loose, look for evidence of the coil rubbing the flywheel. Press J to jump to the feed. This is because your oil is not rated to get to work at a low temperature. Ensure the chain fits snugly inside of the bar and the teeth that keep it in place are not worn down too low. Some of our partners may process your data as a part of their legitimate business interest without asking for consent. When it comes to power tools, good maintenance, and proper use will maintain the functionality and lifespan of the tool regardless of whether it is an electric miter saw or a gas power chainsaw. A flooded engine is when there is too much gas in the combustion chamber, usually due to repeatedly starting the chainsaw using the recoil system without the engine starting. 24" is what I've got on mine, but it can handle a bigger bar. The saw feels good in my hands and its got a surprising amount of power. Quoting Removed, click Modern View to see Don't put water in the saw-ever. Additionally, most spark plugs come pre-gapped. As stated it is with a hot engine so the water turns into steam in the cylinder and helps bust up the carbon. If it is the right sparkplug and not flooded, I would maybe buy a different saw with easy start. Little two stroke motors as on chainsaws have to have a lot of compression to make the needed power. . While rope attached to a pulley, the further connection of the pulley is with springs and pawl to make sure the pulley is tensioned and helps in retracting and spinning. Every chainsaw requires a specific amount of compression if this compression is more or less than the required amount, the engine will not be able to produce energy from the fuel source, and it will be exhausted faster. As the chain moves over the bar, it spreads the oil across the moving parts to reduce friction and heat. Soaking in water will do nothing but rust things up . After that, using a ratchet, remove the spark plug from the engine. Please use the navigational links to explore our website. Friction is usually the cause of a rope failing to draw when it should. "name": "Yesterday's Tractor Co.", Our aftermarket suitable replacement Stihl MS 250 C chainsaw compression release parts meet or beat OEM specs, offer a considerable cost savings, and usually ship in 24 - 48 hours. Whether you are a beginner or a professional woodworker, knowing how to fix your chainsaw will save you time and money seeking help from a service center. Ok folks, I'm stumped. Apparently gas would seep int crankcase and over several months of setting gas would evaporate leaving oil behind and first time it was pulled would suck oil into the cylinder. Quoting Removed, click Modern View to see What?? Not sure I would do it to a saw, but the engine is running at rather high rpm when the water is sprayed into the carb air inlet. Take better care of your chainsaw and perform regular maintenance according to the manufacturers recommendations to prevent any of these problems. There are sprays (power tune) for removing carbon, but I doubt if that's your problem. If you still want to try and get carbon out of the saw either take it apart and clean it or use something along the lines of sea foam. If your saw doesn't have a compression release since like you say its not a pro, then the two things I would check is either the go through recoil assembley with a fine tooth comb. "logo": { Stihl 024 - Sherlock Holmes issue - help needed here. You need to pull the exhaust to check that. The starter assembly often fails to rotate due to a weak connection between the pulley and the ignition rope. I bought an old beater 621 Jonsered once that had very high compression, got it running well and sold it, made some money on it! everything is harder in a tree, not a conclusive test. Check the choke of the chainsaws engine and make sure it is completely closed. It's supposed to warm up later this week so I'll be able to do some more on this chain saw. So be sure to keep your chainsaw properly maintained and avoid compression problems. We will explain the causes of high compression and how you can quickly fix it to make it run smoothly. Hold the tip of the blade and adjust the tension of the chain correctly.
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