Winterizing a pool is an important step in maintaining the longevity and health of your pool. I would suspect the timing is too early. The recoil starter in a chainsaw is a start mechanism that allows you to pull the rope. It is effortless to check the starter spring; pull the ignition rope. Maybe take the plug out & pull the cord several times to blow out any excess fuel, then see how it pulls. in the. in the, All Rights Reserved. Other Professional Battery-Powered Chainsaws We Recommend: Stihl MSA 220 C-B 36V 16-inch Chainsaw: Solid design and increased power backed by Stihl's dealer network. 4 Possible Problems & Solutions Problem 1: Damaged starter housing Solution: 1. The carburetors work in a chainsaw engine allows the right amount of fuel and air mixture into the combustion chamber. "name": "Yesterday's Tractor Co.", In this case fixing or repairing is required or worst replacing the engine all at once. If it is over loading on fuel the carb may need rebuilt to stop the diaphragm from leaking fuel into the cylinder after the saw is shut off. Clean any mildly dirty parts and replace all the damaged parts. Has anyone ever seen a stock MS250 or any stock stihl with 190psi of compression? It is, therefore, necessary to determine if the problem has been remedied by adding fresh fuel. I just picked up a well used 025 that runs like a champ and has quite a bit of compression, I have not put a gauge on it but it will pull the starting handle out of my hands if I'm not paying attention. 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. If a chainsaw has a 2 stroke engine, then the maximum compression it requires is 110-130 PSI. If the chainsaw engine dies when you release the throttle, turn the low-speed screw with a screwdriver clockwise until it stops and then turns it counterclockwise once. 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. Hello. The end of the tester must protrude exact the same volume into the cylinder as the spark plug or the reading will be wrong. Here is how to troubleshoot a malfunctioning spark plug. Pull the recoil off and check for binding Pull rope or starter pawls misaligned. Normally it's not a problem but if it was already difficult to pull it could be. It is best to put a new plug in after clearing. This is because your oil is not rated to get to work at a low temperature. That is the nature of a 250. It is harmful to your machine to use old fuel. Cleaned air filters and both were very dirty. As stated it is with a hot engine so the water turns into steam in the cylinder and helps bust up the carbon. If that is true, I'd suspect that the timing is off and why it's ripping the cord from your hand. 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. If it is over loading on fuel the carb may need rebuilt to stop the diaphragm from leaking fuel into the cylinder after the saw is shut off. This can lead to serious injuries, including cuts and amputations. Also check the air filters and make sure they are clean. Carboned rings will decrease not increase compression. It's possible the timing is off a little but without knowing the make and model of the saw that's just a long shot. Low pressure, 20 to 30 pounds is all you need. $20.00 shipping. Runs well, except it. Use of this Web site constitutes acceptance of our. When starting, slowly pull the rope to where it pulls hard before starting your actual starting pull. It is usual for the chainsaw chains to come off with continued use, but there is usually an underlying cause when its too repetitive. I bought 2 032 Stihl saws at auction that pulled very hard. I used to have a Homelite that would do that if I left gas in it. I'll even do the labor for free. "height": 57 If it has to do with small engines, it's welcome here. Also, remove the muffler and check for carbon buildup. $99.95. Obviously, the motor, which has a huge capacity, will require more compression. First, remove the spark plug from the chainsaw. Fine adjust everything and both saws start Normal now. Open the spark plug hole facing away from you, remove the wire from the spark plug and disconnect the spark plug using a spark plug wrench. Move the selector lever up one position immediately or the saw will flood on the very next pull. Does the saw have a compression release? Recognised as a leading saw in the forestry industry, it is available in guide bar lengths 13"/32cm to 18"/45cm. If the compression is too high or too low, the engine wont start. When people did it years ago it was with 4 stroke engines where the water is flowing straight into the cylinder. I got it started. The extra effort to pull the saw is probably due to carbon build up on the piston crown and combustion chamber. Hello EGBinOR, If A two cycle engine gets flooded BADLY, oil can separate from the gas mix, accumulate in the crankcase and creates an hydrostatc lock. anthonyg_ma Original Author 16 years ago Canguy, thnks for the tips! 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. When you are doing a cold start, push the choke lever to the warm start when the engine starts to run. Compression problems are usually due to an air leak in the engine, usually around the gaskets and seals of the crankshaft. Most times, when the Stihl chainsaw stops working, it is never a complete breakdown. There might be a small stone or thing that is stuck inside the starter and causes the rope not to retract. How Much Does it Cost to Install a Garage Door Opener? If you would like to change your settings or withdraw consent at any time, the link to do so is in our privacy policy accessible from our home page.. 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. 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. If you suspect a compression issue, seek professional help as compression repairs can be complicated. 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. Keep in mind that the stuck ignition rope can also damaged other parts inside the starter assembly. You may also want to go ahead and replace the plug. It would give you rusted bearings. Also check the air filters and make sure they are clean. Does the saw have a compression release? I;ve read somewhere to put water? 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. Are you sure the starter rope isn't a little too short? A smaller gap will cause a weak spark and poor ignition of the engine, while a wider gap will not bring out any spark. Unscrew the clutch assembly on top of the oil pump. Stihl ms 291 ? Here's How to Fix It Quickly If there is any damage to the pulley at any stage, it will cause High Compression or stiffness during a pull.. It is possible however to flood a two stroke which can cause the plug to fowl. No compression when pulling start rope read more Expert Stihl ms 180 chain saw, new carb, spark plug, compression stihl ms 180 chain saw, new carb, spark plug, compression 110, new gas, still won't start what next, piston is not scored. The power of the motor of an engine is measured in its capacity. So be sure to keep your chainsaw properly maintained and avoid compression problems. Flooding usually happens due to an underlying issue: a bad spark plug, bad gas, or a faulty carburetor. Spark plugs that are not functioning properly are another probable cause of excessive compression. And some will have more. Turn the engine to get under the piston and blow the crankcase out. That is what was told to me by the area distributor technician That is the nature of a 250. Indoor fly traps are an effective way to keep insects away from your home. A chainsaw with no spark will shut down suddenly or not start at all. { Stihl chain saw too much compression I had to take it apart If you buy another battery, make sure it has the same voltage and amperage as the old battery. We have explained the most effective way to unflood a chainsaw engine below. 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. 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. If any of these components are worn or broken, the chain saw wont start even with fuel. I used to have a Homelite that would do that if I left gas in it. Get it ported and it brings it to another level. A 250 has a fair amount of compression for a smaller saw but not that bad. It would give you rusted bearings. I've done it to high hour Kohler engines many times. If A two cycle engine gets flooded BADLY, oil can separate from the gas mix, accumulate in the crankcase and creates an hydrostatc lock. On a 2 stroke the water would go into the crank case first and pool up. Ok folks, I'm stumped. My name is Chris Ross. Most of the time, the chainsaw cord became hard to pull because of the Starter Housing. If you see any unusual movement of spring, then take it in to replace it. You need to pull the exhaust to check that. As the starter, spring plays a vital role in running starter assembly smoothly. Dont substitute it with. As stated it is with a hot engine so the water turns into steam in the cylinder and helps bust up the carbon. Make sure it's greased and the bushings are good. Any ideas? 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. Try it, it may just do the trick! The plug should be tight against your thumb. By checking & repairing/replacing these, you can fix the issue. When there is too much fuel, it will not ignite, and the engine wont start. Stihl 064 | Outdoor Power Equipment Forum Check the spark plug of the chain saw if the engine is not starting at all. or Best Offer. Would not be afraid to do it to a 4, 6, or V-8. If the coil is faulty, there will be no spark to start the engine and run the chainsaw. There are sprays (power tune) for removing carbon, but I doubt if that's your problem. It's also possible the piston or cylinder are scored or carboned up. Check the spark plug and replace it if needed. However, these moving parts, to stay moving, require a substantial amount of compression. . $75.00. or Best . Any help out thereEGBinOR Get you some Sea Foam at the local auto parts store. When the spark plug is removed, the engine turns Ask an Expert Car Questions Small Engine Troubleshooting JON, Small Engine Technician 2,680 Satisfied Customers Certified Small Engine Technician JON is online now Related Small Engine Questions The ideal pressure range of the Stihl chainsaw is between 90 and 110 psi. It's supposed to warm up later this week so I'll be able to do some more on this chain saw. Would not be afraid to do it to a 4, 6, or V-8. Pour starting fluid into the carburetor and crank the engine several times. So, replacing the ignition rope is a better option to keep everything working smoothly without any damage. Blup throttle to bring it down to idle. First thing I'd check is the pull start assy. Take off the muffler or the carb to get access. I pulled them over with plug out ,They seemed to pull normal and believe they were fuel locked. Check the electrode gap of the spark plug and ensure it is 0.02 inches. I hook up a drill to the nut on the clutch and start hard starting saws that way . Stihl MS192T Chainsaw Fuel Oil Tank Engine Housing Assembly OEM. Animated Two Stoke Engine Air Cycle, My husky 266xp has been that away from newjust pull over slow for 2 or 3 times and then try cranking.. My husky 266xp has been that away from newjust pull over slow for 2 or 3 times and then try cranking.. STIHL 026 HARD TO PULL - Yesterday's Tractors I've got one here with 105-110 compression that I can't get to run and it feels kinda funny when I pull the starter rope, like it has compression with the piston going up and down. Make sure the gap is according to the specifications of your chainsaws engine. The spark plug is located in the engine and ignites the fuel and air mixture, driving the piston and running the engine. Therefore, it does not need any compression rate to start. Suitable Replacement Stihl MS 250 C Compression Release Parts A 250 is a joy to pull start Compared to my 200+ compression ported saws with no decomp. A hot engine also requires more compression to convert furl into energy as compared to the colder one. Stihl ms 291 hard to pull start? Here's How to Fix It Quickly Why is the Garage Door Opener Light Not Working? Youre familiar with how to start a stihl yes? Sometimes, this might be triggered by another problem that is impacting your system. The consent submitted will only be used for data processing originating from this website. Take off the side cover, bar and chain and see if there is any play in the clutch side of the crank. A chainsaw Battery blinking red is one of the most frustrating things a woodcutter can, Read More How To Fix Chainsaw Battery Charger Blinking Red?Continue, The standard compression reading required for most 2-cycle chainsaw is around 100-110 psi to start. I've seen it happen a couple times. If the chainsaw is too much compression, it may be difficult to start. This article will help you fix the most commonly reported problems of a Stihl chainsaw. Try taking it out, Then holding the trigger while you pull fast. It was easier to pull after I cleaned it up, but still tough. It prevents the carburetor from allowing too much fuel into the combustion chamber. 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. }. Insufficient fuel in the system may result in excessive compression. Hello D beatty, Here is a link for two stroke engine air cycle, Guido. Press J to jump to the feed. It had a compression release, and it started and ran well. Pull the rope until it starts. 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 after doing it.You might want to do it with screen removed from muffler. 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. First, remove the cylinder and piston from the chainsaw. We describe all the possible issues and also suggest the solutions to fix them too. Locate the spark plug from the top of the engine underneath the chain brake handle. #3. Convenient, durable and robust with minimum weight, the STIHL MS 260 can come with a number of optional features to make the job even easier. A lot of variables might contribute to excessive compression while using a chainsaw. Subsequent starts are just as hard. I've seen a 20psi drop with the wrong type of gauge to be pretty common. in the cylinder overnight because the rings are cerboned up? Fine adjust everything and both saws start Normal now. Help, can barley pull Stihl MS250, too much compression Dust particles in the air mix with the lubricating oil and clog up the air filter, therefore, preventing sufficient air from getting into the engine. Usually, this happens when you use a chainsaw after a very long time or by wear and tear of the rope. Take off the side cover, bar and chain and see if there is any play in the clutch side of the crank. sthil 034 hard to pull the cord in Chainsaws - The Forestry Forum }, Hold the saw firmly to the ground and crank the engine about four to six times to bleed out the fuel from the combustion chamber. "interactionStatistic": { Continue with Recommended Cookies. "@id": "https://www.yesterdaystractors.com/" If the issue persists after the addition of new fuel to the tank, there may be a fault with the gas pipelines or the fuel filters. 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! "text": "My chainsaw has gotten very hard to pull the rope. Thus far, you have learned how to diagnose most problems with the Stihl chainsaw and how to fix the issues. Do that to the starter side when you're looking at the starter assy. Typically, several reasons cause too much compression in a chainsaw and these include but are not limited to: Old contaminated chainsaw fuel Chainsaw Starter rope issues Faulty spark plugs Chainsaw Carbon buildup Insufficient Chainsaw Oil Old and contaminated fuel Press question mark to learn the rest of the keyboard shortcuts. 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. It may not display this or other websites correctly. Currently I live in Austin, United States. I think that's what I'd do. No compression when pulling start rope. Once it's removed, you can place a gauge on the place of the spark plug. Quoting Removed, click Modern View to see Don't put water in the saw-ever. Get you some Sea Foam at the local auto parts store. Sparkplug was correct but I think it was a little flooded. Stihl Chainsaw Ms170 for sale | eBay Chainsaw excessive compression - TractorByNet Therefore, most people will wonder why the chainsaw has too much compression. 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!!! The chainsaw has grooves all around the outer edge of the guide bar, and the chain has teeth that run within the bar rail to keep the chain in place and moving straight. Replace with a new starter house Problem 2: Damaged pulley system Solution: 1. A very loose chain will cause the blades to come out of the bar, while a very tight chain is also not ideal for the proper functioning of the chainsaw. Getting these problems resolved is a rather straightforward process. It would give you rusted bearings. Compression gauges are not always accurate and different engines will provide different results. Winterize Your Pool Like a Pro: A Comprehensive Guide for Home owners. I usual only choke my MS250 for one pull and no longer have the flooding issue. High compression in chainsaws is a dangerous problem that can lead to serious injuries. Consequently, operating this chainsaw becomes a really difficult chore to do. Thank you for the responses. "url": "https://www.yesterdaystractors.com/graphics/smllogo.png", idle. 3Pcs/lot Cylinder Compression Plug For STIHL 044 046 066 MS440 MS460 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. Reddit and its partners use cookies and similar technologies to provide you with a better experience. Stihl MS290 Hard to pull recoil | Hearth.com Forums Home Little two stroke motors as on chainsaws have to have a lot of compression to make the needed power. stihl ms290 farm boss; By Ron Cook December 27, 2017 in General Chat. The carburetor is a significant part of the chainsaw. There is no carbon build up and all looks like new. Posted December 27, 2017. Welcome! The chainsaw motor engine capacity can range from 30CC and 50CC to 150 CC. 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. An example of data being processed may be a unique identifier stored in a cookie. As the chain moves over the bar, it spreads the oil across the moving parts to reduce friction and heat. I hope you understand the problems why your chainsaw is hard to pull. Tighten the tension screw with a screwdriver to tighten the chain around the bar. Save my name, email, and website in this browser for the next time I comment. If you recently refueled your Stihl chainsaw, stale gas can be a reason why it wont start. Rinse the filter and allow it to air dry before reinstalling it. It very often kicks back and pulls the starter rope back in. It is thus highly recommended that you drain the fuel from your chainsaw if it still has any old gasoline left in it. I missed the "no carbon". I have a MS250 that has come up on compression since new. "width": 200, A compression gauge is used to measure the compression of a chainsaw which works similarly to the tire gauge. It has barley been used, no carbon in muffler, still happens with muffler off, does not happen with sparkplug out. You're familiar with how to start a stihl yes? Once the 250 is running, its fine. When starting, slowly pull the rope to where it pulls hard before starting your actual starting pull. 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. A 50CC engine needs 150 PSI compression. My husky 266xp has been that away from newjust pull over slow for 2 or 3 times and then try cranking.. You are misunderstanding WHY water is put into carboned up engines. As stated it is with a hot engine so the water turns into steam in the cylinder and helps bust up the carbon. of compression. water will not dissolve carbon; it is far too hard to be effected. MS250 start compression relief stopped working.