Best Mossberg 500 Heat Shield, Articles S

Press J to jump to the feed. What usually happens is that the guide bar gets stuck in the tree and they keep running the engine while trying to force the bar out of the tree somehow. I hook up a drill to the nut on the clutch and start hard starting saws that way . Being in the cutting services for more than 10 years, I know a thing or two about chainsaw. Ron Cook. This article will help you fix the most commonly reported problems of a Stihl chainsaw. Find the low speed, high speed, and idle speed screws near the carburetor, start the engine and allow it to warm up. Pull the starter rope until you hear the first sign of it firing with a small burp. Neighbor brought me his Stihl MS250 complaining that it tries to pull his arm from socket when starting. $49.99. I hook up a drill to the nut on the clutch and start hard starting saws that way . Recognised as a leading saw in the forestry industry, it is available in guide bar lengths 13"/32cm to 18"/45cm. How Many Amps Does a Garage Door Opener Use? If it is hard to pull, then check how the spring is performing. Check the choke of the chainsaws engine and make sure it is completely closed. A large engine has a huge capacity in its motor. Oct 24, 2011 / Chainsaw excessive compression #1 . Welcome! Use an adjustable wrench to loosen the two nuts on both sides of the chainsaw. Can also be used with hedge trimmer attachment HS 246. You need to pull the exhaust to check that. What are the numbers on your sparkplug? what and or where is the metering lever.? Likewise, low compression in the engine will be slow and retarding and it is a warning sign of leakage in your engine. Sometimes the spring stops working correctly due to overuse and becomes brittle. It's also going to be wise to try to put the chainsaw somewhere that isn't exposed to constant sunlight since that can be a contributing factor to the oxidation. Turn the idle speed clockwise until the saw idles and chain turns, and then make a one-fourth counterclockwise turn. Youll need to clean the cylinder and piston to fix this thoroughly. Ivor from uk here and I have a stihl chainsaw and when I am hedge laying or pletching as it is called the saw only runs for 15 or 20 seconds or perhaps 1 minute at the most if there is a big cut to make the spark plug tip builds up with carbon,i use proper 2 stroke oil at a ratio of 25to1 does any pletching or hedge laying go on across the pond?? The owner is complaining of hard to pull start. The engine must be up to operating temperature, spray a light stream of water into the engine carb air inlet and the cold water shocks the hot carbon and the carbon flakes off and blows out the exhaust pipe. I bought 2 032 Stihl saws at auction that pulled very hard. The engine must be up to operating temperature, spray a light stream of water into the engine carb air inlet and the cold water shocks the hot carbon and the carbon flakes off and blows out the exhaust pipe. A compression gauge is used to measure the compression of a chainsaw which works similarly to the tire gauge. A reddit for all operators of chainsaws to post experience with tools, pictures of their new saws and old workhorses and any maintenance tips. Get you some Sea Foam at the local auto parts store. Try blowing the crankcase out with air. 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. "@type": "ImageObject", My one and only MS250 was a kicker to start it but that was the only problem. 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. My /Sthil 034 is very difficult to start. I would suggest clearing the cylinder by pulling the rope with the plug out. I hope you understand the problems why your chainsaw is hard to 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. Sometimes, the ignition rope is frayed or stuck inside the starter housing. When you are doing a cold start, push the choke lever to the warm start when the engine starts to run. Check for dirty fuel tanks, clogged fuel filters, loose pipes, clogged air filters, and a dirty carburetor, which can all the fuel volume going into the combustion chamber. Remove the ignition coil, test it using a multimeter or an ignition coil tester, and confirm your chainsaw models resistance specification. Ok folks, I'm stumped. Soaking in water will do nothing but rust things up . Put a solder in the sparkplug hole, turn the flywheel until the piston touch the solder, then measure the solder. If the compression is too high or too low, the engine wont start. If any of these components are worn or broken, the chain saw wont start even with fuel. "@type": "Person", A chainsaw with no spark will shut down suddenly or not start at all. Try blowing the crankcase out with air. Sounds like it was broken in "right", show the guy how to start it and tell him to be happy. Make sure the keyway is lined up correctly and tighten the nut down good and tight. It's supposed to warm up later this week so I'll be able to do some more on this chain saw. Finally the fuel will be converted into energy. "name": "Yesterday's Tractor Co.", First thing I'd check is the pull start assy. I used to have a Homelite that would do that if I left gas in it. Temperature Of The Engine A heavy-duty engine gets hot faster and works better than a cold engine. 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. "publisher": { after that I'd be looking at crank bearings. Could your gauge be off a little? The Stihl chainsaw is a two-stroke gas-powered tool that uses a substantial amount of compression to pull fuel from the tank, mix it with air and ignite it to produce energy that runs the chainsaw. I think that's what happened, although I didn't think such a small amount could do it. Maybe the piston is hitting it. Starting fluid will make the fuel more combustible and makes the process of clearing out the combustion chamber much quicker. You need to pull the exhaust to check that. 3 9 9 comments Best Add a Comment Revolutionary-Act469 2 yr. ago Doesn't pull at all or just hard to pull. A two-stroke gas-powered chainsaw uses relatively few moving parts. Stihl oil has been used. Make sure it fits snug. 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. Stihl 291 chainsaw too much compression Check the compression of the engine. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. They're easy to use and inexpensive, so if you are considering buying one for your home, there are a few quick things you Consumers in the Home and Garden sector turn to us for answers to their nagging questions about various goods and services. No compression when pulling start rope. Read More Chainsaw Primer Bulb Temporary FixContinue, Pull out your battery from the chainsaw, and press the battery button sustainably for a minimum of 5 seconds before you release it. Could be the main bearings are loose, look for evidence of the coil rubbing the flywheel. If the reading is below or above the required range, then your ignition coil requires changing. I've been working on a Stihl 026 chainsaw that John found, and it is very hard to crank. My question is what is causing the trigger to not slow down. Disengage the chain brake, turn on the ignition switch and install the new spark plug into the rubber connector. If you introduce an extremely fine trickle of water into a running engine through the carburettor that may remove some carbon . Carboned rings will decrease not increase compression. The engine creates a vacuum pressure inside it. This is because each machine is made differently and has various needs. As the starter, spring plays a vital role in running starter assembly smoothly. I;ve read somewhere to put water? To ensure that enough air reaches the chain saw's engine, remove the air filter and clean or replace it, depending on the manufacturer's instructions. Most fuels nowadays are a blend of ethanol which attracts moisture and speeds up the rotting process. Trying to rotate the chain while a huge piece of wood is . or Best Offer. It very often kicks back and pulls the starter rope back in. Any chance is it hydro locking because of gas? The carburetors work in a chainsaw engine allows the right amount of fuel and air mixture into the combustion chamber. Just wondering what your opinions are of the lowest compression you can run a Stihl MS250 at. The other reason might be the use of the wrong type of oil for the climate. I hope my epic guides will help you to choose,buy and maintain chainsaw. Check for clogged shafts and jets, clogged carburetor, damaged valves, stuck levers, and damaged or warped diaphragms, all of which can interfere with the fueling process. If it does maybe it is plugged. Remove the sprocket and the washer. Getting these problems resolved is a rather straightforward process. 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. That is a high compression saw, pull the rope slowly until you feel resistance then give it a short quick pull. There are sprays (power tune) for removing carbon, but I doubt if that's your problem. A smaller gap will cause a weak spark and poor ignition of the engine, while a wider gap will not bring out any spark. You are using an out of date browser. Replace with a new starter house Problem 2: Damaged pulley system Solution: 1. Does the saw have a compression release? 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. Normally it's not a problem but if it was already difficult to pull it could be. Refill the chain oil by opening the cap on the chain oil tank, filling up the tank until the level is below the cap threads, and then replace the lid. Cleaned it all up, and had it tuned up. First, remove the spark plug from the chainsaw. When it comes to compression values, those between 90 and 110 psi are deemed to be acceptable. 1 2 Next J Joe_Power Joined Apr 18, 2013 Messages 651 Location USA - Coast to Coast, Border to Border Jun 2, 2015 #1 I just replaced the cylinder and piston on a stihl 036. As a result of using bad fuel or leaving fuel in the chainsaw for a long time, the fuel evaporates and leaves behind a sticky substance that accumulates and clogged the carburetor. Confirm the spark plug gap, check and adjust with a feeler gauge or gaping tool. I went with a meteor piston/cylinder set. If it is not physically damaged, clean it with clean gasoline and a rag. Keep in mind that good maintenance and storage will reduce breakdowns and maintain your tools performance throughout its lifetime. Admitted Woodaholic. By rejecting non-essential cookies, Reddit may still use certain cookies to ensure the proper functionality of our platform. I missed the "no carbon". Most of the time, the chainsaw cord became hard to pull because of the Starter Housing. Reassemble the chainsaw, refill the fuel tank, crank the engine and check for oil along the bar. You're familiar with how to start a stihl yes? Fuel filters trap dirt and contaminants from the fuel to prevent them from damaging the engine. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. A heavy-duty engine gets hot faster and works better than a cold engine. 4 Possible Problems & Solutions Problem 1: Damaged starter housing Solution: 1. A drastic and frankly silly thing to do though . As stated it is with a hot engine so the water turns into steam in the cylinder and helps bust up the carbon. Register today and take advantage of membership benefits. Over time or when using the wrong fuel, the fuel filter becomes too clogged and restricts fuel flow, killing the engine shortly after starting. Once the 250 is running, its fine. read more Vince O. This is bad practice, and can damage your chainsaw. Little two stroke motors as on chainsaws have to have a lot of compression to make the needed power. So, in our suggestion, one of the first things to check while feeling high compression is the starter spring. It runs good after I get it started. Low pressure, 20 to 30 pounds is all you need. You can follow the steps on how to troubleshoot and revive it when it wont start. Unscrew the spark plug using a ratchet and screw the compression gauge in its place. Uninstall the spark arrestor and unblock it using a brush, but you can also replace it for efficiency. In most cases, a buildup of carbon under the rings presses the rings against the cylinder, culminating in compression of the cylinder. The ignition coil transmits electricity to the spark plug to create a spark that ignites the engine. If you are trying to start your chainsaw in winter and the oil you used for the chainsaw assembly is not suitable for the winter season, you also feel high compression. Any ideas? } Also, remove the muffler and check for carbon buildup. Not sure it would accomplish anything on a 2-stroke chain saw engine. Quoting Removed, click Modern View to see Don't put water in the saw-ever. 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. 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. Is the spark plug the correct one for the saw? Make sure you have a replacement spark plug on hand in case the problem recurs in the future. . Soaking in water will do nothing but rust things up . On a 2 stroke the water would go into the crank case first and pool up. The Housing is the outer cover of the starter, and if it is damaged, your chainsaw suffers stiffness during a pull. 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.. Quoting Removed, click Modern View to see Don't put water in the saw-ever. Quoting Removed, click Modern View to see That would be quite the trick to get the oil to separate out of the gas, LOL. Press question mark to learn the rest of the keyboard shortcuts. You are misunderstanding WHY water is put into carboned up engines. Sometimes, this might be triggered by another problem that is impacting your system. let it idle over lunch, just made sure to not go too long between filling it with gas, while running of course. You will notice the compression less. Use a screw wrench to loosen the nuts on the guide bar side panel to give you room to adjust the chain. water will not dissolve carbon; it is far too hard to be effected. 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. Follow the steps below on how to fix a flooded chainsaw engine. If that is true, I'd suspect that the timing is off and why it's ripping the cord from your hand. Every chainsaw engine has a different capacity depending upon its motor power. 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 High compression in chainsaws is a dangerous problem that can lead to serious injuries. It runs good after I get it started. Stihl chainsaw low compression diagnoses and How To Dave's Small Engines 8.89K subscribers Subscribe 17K views 2 years ago This video shows a Stihl MS310 chainsaw I have apart from low. Ivor from uk here and I have a stihl chainsaw and when I am hedge laying or pletching as it is called the saw only runs for 15 or 20 seconds or perhaps 1 minute at the most if there is a big cut to make the spark plug tip builds up with carbon,i use proper 2 stroke oil at a ratio of 25to1 does any pletching or hedge laying go on across the pond?? Being new carb, wasn't looking that direction educate a non mechanic. My name is Chris Ross. The Stihl chainsaw uses a four-position lever ignition system called the master control lever. This may sometimes jam your chainsaws rings, causing it to become inoperable. What is the minimum compression for my STIHL chainsaw? Every chainsaw needs to have some compression to ensure that it operates well. You can use a ratchet to do the task. 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. Friction is usually the cause of a rope failing to draw when it should. in the cylinder overnight because the rings are cerboned up? So be sure to keep your chainsaw properly maintained and avoid compression problems. 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! Thus far, you have learned how to diagnose most problems with the Stihl chainsaw and how to fix the issues. The engine must be up to operating temperature, spray a light stream of water into the engine carb air inlet and the cold water shocks the hot carbon and the carbon flakes off and blows out the exhaust pipe. 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. Over time, soot from the engine clogs up the spark arrestor causing the chainsaw to stall. Pull the rope until it starts. That is what was told to me by the area distributor technician Check for side play in the crankshaft. When there is no air for the spark to ignite, the chainsaw will start and then die after a short while. That is what was told to me by the area distributor technician. First thing I'd check is the pull start assy. Replaced the chain and did some serious cutting and was so pleased. It is effortless to check the starter spring; pull the ignition rope. How Much Compression Should a Chainsaw Have. I'm also going to double check it has the correct resistor type spark plug. The piston and rings are very shiney. Fine adjust everything and both saws start Normal now. Im Nelson, a DIY enthusiast with a bottomless can-do attitude. Poke the oil feed hole with a 16-gauge wire to unclog it until it slides through the hole smoothly. $75.00. The flywheel is loose? Turn the engine to get under the piston and blow the crankcase out. Would not be afraid to do it to a 4, 6, or V-8. JavaScript is disabled. 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. I used to have a Homelite that would do that if I left gas in it. Does the saw have a compression release? It has barley been used, no carbon in muffler, still happens with muffler off, does not happen with sparkplug out. 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. We will explain the causes of high compression and how you can quickly fix it to make it run smoothly. 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. 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.. With the choke engaged, pull the starting rope several times again, and the chain saw should start on the third pull. The exhaust is black but no build up. I wouldn't go messing with the carb expecting to cure the issue unless you have obvious signs of flooding when trying to start. It is thus highly recommended that you drain the fuel from your chainsaw if it still has any old gasoline left in it. If it does maybe it is plugged. Step 1: Prepare the chainsaw Remove the spark plug from the chainsaw. 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. The carburetor is a significant part of the chainsaw. If the compression is not produced in the engine at an appropriate level, it will not be able to convert fuel into energy. If you refuel your chainsaw and it still won,t start, below are some of the possible causes and solutions that will get the chainsaw functioning again. Turn the engine to get under the piston and blow the crankcase out. "datePublished": "2017-08-17", This could be understood by reading the further explanation below. If this does not fix the issue, it may be necessary to replace the whole starting rope system with another one. If oil is in there it is what makes the engine feel like it is almost locked up. Your chainsaws compressive strength is measured with the use of a screw-in gauge. 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. When people did it years ago it was with 4 stroke engines where the water is flowing straight into the cylinder. Remove the entire carburetor and clean it. If you buy another battery, make sure it has the same voltage and amperage as the old battery.