stihl chainsaw too much compression

"@id":"https://www.yesterdaystractors.com/cgi-bin/viewit.cgi?bd=toolt&th=435118", Gas with ethanol also burns hotter than gasoline which can cause the engine to overheat and burn the plug electrodes. Quoting Removed, click Modern View to see Don't put water in the saw-ever. Then Google "decarb". Check the spark plug of the chain saw if the engine is not starting at all. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V. As stated it is with a hot engine so the water turns into steam in the cylinder and helps bust up the carbon. Every chainsaw requires a different compression level according to its built-up and model number. Follow the steps below on how to fix a flooded chainsaw engine. The second thing, Read More Stihl Chainsaw Charger Not WorkingContinue, Your email address will not be published.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. Subsequent starts are just as hard. If that doesnt work, try gently tapping on the side of the bulb with a screwdriver or other tool. If it is not physically damaged, clean it with clean gasoline and a rag. Remove the air filter, wash it with detergent and water and scrub off the dirt with a brush. 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. 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. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. I hope you understand the problems why your chainsaw is hard to pull. I think that's what I'd do. The carburetor sucks fuel from the tank, mixes it with the right amount of air, and pushes the mixture into the combustion chamber. 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. Is the spark plug the correct one for the saw? Press J to jump to the feed. This may sometimes jam your chainsaws rings, causing it to become inoperable. 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. The first step is to remove the cover that covers the spark plug on your chainsaw. The owner is complaining of hard to pull start. Even though it was purchased "brand new" I'm not so sure. It will be apparent if it is, but usually a scored saw won't run good, if at all. Also take the spark plug out and do the same. It works when cold-starting the engine, when the engine is idle and when the engine is open. "logo": { When you are doing a cold start, push the choke lever to the warm start when the engine starts to run. I'm hearing thats just the nature of the beast. A large engine has a huge capacity in its motor. The carburetor is a significant part of the chainsaw. So, If you feel too much compression while pulling a chainsaw, the possible reasons might be as below. Lift the bars nose and tighten the nuts on the sidebar to secure the sidebar and guide bar in place. As stated it is with a hot engine so the water turns into steam in the cylinder and helps bust up the carbon. When the motor warms up after about a minute, turn on the choke position. Also take the spark plug out and do the same. Take off the side cover, bar and chain and see if there is any play in the clutch side of the crank. To test the recoil starter, remove it and reposition the spring. Pour starting fluid into the carburetor and crank the engine several times. You never try to get it to run with the choke on. Winterize Your Pool Like a Pro: A Comprehensive Guide for Home owners. I went with a meteor piston/cylinder set. Stihl 291 chainsaw too much compression Check the compression of the engine. To clean it, drain the fuel, spray some carburetor cleaner and loosen the residue with a small brush. First thing I'd check is the pull start assy. It uncoils, tightens the spring, engages the clutch to start the engine. If this does not fix the issue, it may be necessary to replace the whole starting rope system with another one. }, It prevents the carburetor from allowing too much fuel into the combustion chamber. Always change the spark plug after 100 operating hours of the chainsaw to avoid engine problems. 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 It runs good after I get it started. } There are sprays (power tune) for removing carbon, but I doubt if that's your problem. 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 Would not be afraid to do it to a 4, 6, or V-8. When the air that reaches the chain saw's engine is insufficient, it becomes prone to overheating. Also check the air filters and make sure they are clean. Free shipping. "interactionStatistic": { Spark plugs that are not functioning properly are another probable cause of excessive compression. Has someone invented a new kind of two stroke motor? or Best Offer. 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! The choke position is the fourth setting on the master control lever. Keep in mind that the stuck ignition rope can also damaged other parts inside the starter assembly. JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding. If the chainsaw is too little compression, it may start easily but will not run smoothly. Sounds like it was broken in "right", show the guy how to start it and tell him to be happy. When starting, slowly pull the rope to where it pulls hard before starting your actual starting pull. 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. Once you identify the cause of high compression, you can repair that affected part or find a new replacement for it to make it work smoothly. 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. You have an option to either pull off the starter and clean it or look for an ideal replacement for your starter house. As far as compression, you can usually tell by how the saw pulls when starting it. When this comes to a stop, it will come to a complete stop at a certain number, which is the compression of your chainsaw blade. Little two stroke motors as on chainsaws have to have a lot of compression to make the needed power. Pull the starter rope and look for a blue spark between the electrode of the spark plug. Repair or replace the damaged part 2. 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. If the rails are shallow, you need to replace them. . The Stihl 066 chainsaw uses the same type of engine most gasoline-powered yard tools use, a two-cycle combustion engine. You will notice the compression less. 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. Pull trigger and set full choke. Would not be afraid to do it to a 4, 6, or V-8. Your ignition rope must be intact properly with the pulley to work correctly. It is typical for the Stihl chainsaw to develop some issues, and when this happens, some basic troubleshooting will help identify the source of the issue and solution to help it run smoothly. Guido 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. Remove the air filter cover and then slide off the rubber spark plug connector from the spark plug. Remove the spark plugs and the e-clips attached to the sprocket on the engine shaft. Here is a link for two stroke engine air cycle. Uninstall the spark arrestor and unblock it using a brush, but you can also replace it for efficiency. For 503552201 Cylinder Compression Plug Package Include: 3 x Cylinder Plug Cylinder Compression Plug Ron Cook. Wipe off the excess fuel from the spark plug with a clean rag. Could your gauge be off a little? Youll need to clean the cylinder and piston to fix this thoroughly. Then Google decarb . Once the 250 is running, its fine. The ignition coil transmits electricity to the spark plug to create a spark that ignites the engine. Posted December 27, 2017. Take off the side cover, bar and chain and see if there is any play in the clutch side of the crank. In this case fixing or repairing is required or worst replacing the engine all at once. The purpose of a choke in a chainsaw is to make cold starting more effortless, but if you do not use it properly. I pulled them over with plug out ,They seemed to pull normal and believe they were fuel locked. I get it going now and its easier but its still a bear. Try blowing the crankcase out with air. 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. A hot engine also requires more compression to convert furl into energy as compared to the colder one. Try it, it may just do the trick! You can also quickly fix this anomaly by ensuring a proper troubleshooting of the pulley compartment to find damages. SPONSORED. Thanks! As the starter, spring plays a vital role in running starter assembly smoothly. I've done it to high hour Kohler engines many times. I've seen it happen a couple times. 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 think that's what I'd do. Stihl 251 chainsaw. When people did it years ago it was with 4 stroke engines where the water is flowing straight into the cylinder. Does the saw have a compression release? Remove the sprocket and the washer. I hook up a drill to the nut on the clutch and start hard starting saws that way . Are you sure the starter rope isn't a little too short? If not I'm honestly kinda stumped. $799.99 CHOOSE AN OPTION Deliver From Store e.g., 123 Your Street, Virginia Beach, VA 12345 Add to Cart Order Online - Pick Up In Store Currently Shopping At: JC Licht Ace Hardware-Bridgeport (773) 523-8888 Change My dealer Features STIHL M-Tronic You will notice the compression less. Over time, soot from the engine clogs up the spark arrestor causing the chainsaw to stall. Would have to remove spark plug and rinse cylinder with gas to be able to start. John Deere and its logos are the registered trademarks of the John Deere Corporation. If any of these components are worn or broken, the chain saw wont start even with fuel. If the coil is faulty, there will be no spark to start the engine and run the chainsaw. 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. water will not dissolve carbon; it is far too hard to be effected. Most times, when the Stihl chainsaw stops working, it is never a complete breakdown. Of all the Stihl saws, the MS250 is the toughest to start in relation to it's size. Hello EGBinOR, I will also add that if you have points, then the wrong gap will alter the point of ignition and can have the same results, Guido. "publisher": { no, afraid I don't have equipment to test. The chain oil will keep the chain lubricated, keep off dirt and allow smooth movement.

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