Consequently, operating this chainsaw becomes a really difficult chore to do. It is possible however to flood a two stroke which can cause the plug to fowl. That is what was told to me by the area distributor technician. 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. If your chainsaw doesnt automatically turn it off or you forget, the engine cuts off immediately. This is because your oil is not rated to get to work at a low temperature. It uncoils, tightens the spring, engages the clutch to start the engine. Youll need to clean the cylinder and piston to fix this thoroughly. That is what was told to me by the area distributor technician, 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. Fuel filters trap dirt and contaminants from the fuel to prevent them from damaging the engine. What is the minimum compression for my STIHL chainsaw? } Make sure it's greased and the bushings are good. Press J to jump to the feed. Disengage the chain brake, turn on the ignition switch and install the new spark plug into the rubber connector. Sometimes, this might be triggered by another problem that is impacting your system. To test the recoil starter, remove it and reposition the spring. 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. It is usual for the chainsaw chains to come off with continued use, but there is usually an underlying cause when its too repetitive. Lift the bars nose and tighten the nuts on the sidebar to secure the sidebar and guide bar in place. When the motor warms up after about a minute, turn on the choke position. So, in our suggestion, one of the first things to check while feeling high compression is the starter spring. 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. Quoting Removed, click Modern View to see Don't put water in the saw-ever. Stihl oil has been used. I thought all the fuel was out but there was some in the line yet. If the air filter is too clogged, you should replace it. Mar 22, 2017. Use recommedend chain oil lubricant. When people did it years ago it was with 4 stroke engines where the water is flowing straight into the cylinder. It is, therefore, necessary to determine if the problem has been remedied by adding fresh fuel. If any of these components are worn or broken, the chain saw wont start even with fuel. Once it's removed, you can place a gauge on the place of the spark plug. Make sure you have a gauge with a schrader valve right at the tip of the spark plug adapter or you will get a low reading every time. 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. water will not dissolve carbon; it is far too hard to be effected. Even with new spark plugs in, incorrectly removing and installing the spark plugs can prevent the engine from starting. 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. Small Engine Technician check the cylinder & piston for carbon build-up, how much compression Does the chainsaw Engine need, How To Reset Echo 58-Volt Battery Charger. In a similar vein, if the wrong kind of oil is used, the compression may be increased. To clean it, drain the fuel, spray some carburetor cleaner and loosen the residue with a small brush. Soaking in water will do nothing but rust things up . Has someone invented a new kind of two stroke motor? When the fuel starts to turn stale, it gums up and clogs the carburetor just as it would in an unused lawnmower. It very often kicks back and pulls the starter rope back in. in the cylinder overnight because the rings are cerboned up? 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. Repair or replace the damaged part 2. 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. or Best . I get it going now and its easier but its still a bear. I'm hearing thats just the nature of the beast. Your ignition rope must be intact properly with the pulley to work correctly. Low pressure, 20 to 30 pounds is all you need. I bought 2 032 Stihl saws at auction that pulled very hard. 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. I tried draining the crankcase with the saw upside . 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 Subsequent starts are just as hard. Starting fluid will make the fuel more combustible and makes the process of clearing out the combustion chamber much quicker. We are compensated for referring traffic and business to Amazon and other companies linked to on this site. Quoting Removed, click Modern View to see That would be quite the trick to get the oil to separate out of the gas, LOL. Several reasons can cause your Stihl chainsaw to bog down when your pull the trigger. 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 you notice the treads are worn, which prevents the device from pumping, replace it with a new one. This can lead to serious injuries, including cuts and amputations. Now it has sat since the last use and I went to start it and it turned over maybe three times and the compression . The choke position is the fourth setting on the master control lever. Pull the recoil off and check for binding Pull rope or starter pawls misaligned. Wash the dirty filter with a non-abrasive detergent and water. All it needs is a few inches missing and it will pull too hard like the compression is too high. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. I would suggest clearing the cylinder by pulling the rope with the plug out. It is best to put a new plug in after clearing. The compression limit should also be doubled if the engine capacity is 100 CC. Don't know what to do at this point. Try blowing the crankcase out with air. If the compression is too high or too low, the engine wont start. Pull the rope until it starts. Quoting Removed, click Modern View to see That would be quite the trick to get the oil to separate out of the gas, LOL. Then Google decarb . 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. Sometimes it kicks and the rope pulls right out of my hand. "mainEntityOfPage": { A drastic and frankly silly thing to do though . I can probably find one with at most 65 PSI. If the chainsaw is too much compression, it may be difficult to start. 24" is what I've got on mine, but it can handle a bigger bar. You are misunderstanding WHY water is put into carboned up engines. 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. Every chainsaw engine has a different capacity depending upon its motor power. In this case fixing or repairing is required or worst replacing the engine all at once. That is a high compression saw, pull the rope slowly until you feel resistance then give it a short quick pull. Replace with a new starter house Problem 2: Damaged pulley system Solution: 1. You can also quickly fix this anomaly by ensuring a proper troubleshooting of the pulley compartment to find damages. Here is a link for two stroke engine air cycle. Detailed, well-researched, and accurate home and garden information presented in an understandable format is our primary goal. Winterize Your Pool Like a Pro: A Comprehensive Guide for Home owners. Use a can of carb cleaner sprayed into the breather/filter assembly. So, If you feel too much compression while pulling a chainsaw, the possible reasons might be as below. My /Sthil 034 is very difficult to start. First thing I'd check is the pull start assy. Has someone invented a new kind of two stroke motor? Hello. If oil is in there it is what makes the engine feel like it is almost locked up. More information can be found on this page. I'm also going to double check it has the correct resistor type spark plug. Although this is often true, it is not always the case. } 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! $20.00 shipping. A chainsaw with no spark will shut down suddenly or not start at all. It may not display this or other websites correctly. Also take the spark plug out and do the same. Over time, soot from the engine clogs up the spark arrestor causing the chainsaw to stall. My one and only MS250 was a kicker to start it but that was the only problem. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V. My chainsaw has gotten very hard to pull the rope. It will be apparent if it is, but usually a scored saw won't run good, if at all. A large engine has a huge capacity in its motor. Put a solder in the sparkplug hole, turn the flywheel until the piston touch the solder, then measure the solder. Remove the air filter cover and then slide off the rubber spark plug connector from the spark plug. Check for side play in the crankshaft. Below we have discussed the most common reasons why your chainsaw wont idle and the best way to fix it. "image": { Find the low speed, high speed, and idle speed screws near the carburetor, start the engine and allow it to warm up. "width": 200, As the starter, spring plays a vital role in running starter assembly smoothly. Soaking in water will do nothing but rust things up . If you recently refueled your Stihl chainsaw, stale gas can be a reason why it wont start. Thanks. A problem in the ignition system is likely to be the culprit when the chainsaw doesnt spark. $75.00. 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. or Best Offer. link to Indoor Fly Traps: 5 Things You Didn't Know About Indoor Fly Traps. (there is some play when flywheel on shaft (nut not attached) 3. tank and oiler vents are operating 4. exhaust has been removed and spark arresting screen checked (clean) 5. piston/walls checked.. no scarring If it is too damaged, you should replace it. It's an older saw I bought at a garage sale. It is significantly tougher to pull over than an 024 or the new 241. The owner is complaining of hard to pull start. Required fields are marked *. 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. Drain and discard the old fuel, mix new fuel and cycle oil in the ratio 50:1 in a container, shake it and then pour the mixture into the chainsaws fuel tank. "name": "Yesterday's Tractor Co.", This increased distance will cause the chain to keep coming out of the guiding bar with the vibrating saw. You never try to get it to run with the choke on. Check if the wires are damaged or broken and replace them if necessary. We will explain the causes of high compression and how you can quickly fix it to make it run smoothly. After all these operations are carried out, it is necessary to once again clean the saw from dirt, then turn it upside down and unscrew the four screws securing the engine to the chainsaw body. Don't put water into the 2 stroke. The chainsaw motor engine capacity can range from 30CC and 50CC to 150 CC. It runs good after I get it started. How Many Amps Does a Garage Door Opener Use? Turn the brake off. To ensure correct functioning and to prevent excessive compression, you might have to repair worn-out parts with new ones. That is what was told to me by the area distributor technician Check for side play in the crankshaft. Too much carbon will do that, check the piston top and combustion chamber. Hello D beatty, Here is a link for two stroke engine air cycle, Guido. 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. A smaller gap will cause a weak spark and poor ignition of the engine, while a wider gap will not bring out any spark. When you start the chainsaw, it triggers the worm drive to engage the oiler to send oil through a port that releases onto the bar. Any chance is it hydro locking because of gas? As stated it is with a hot engine so the water turns into steam in the cylinder and helps bust up the carbon. Take off the muffler or the carb to get access. This is bad practice, and can damage your chainsaw. Manual for my Stihl saws and leaf blower says to scrape carbon out of the exhaust port. Also check the air filters and make sure they are clean. 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. Don't put water into the 2 stroke.
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