Step 1 of 15: Before starting your chain saw, the chain brake should be activated by pushing it forward (see picture). This will not make a saw die unless it is really dumping ridiculous amounts of fuel, it will make it hard to start. If you see a bunch of gas shoot up, then your chainsaw was flooded. Forums > Equipment Repair and Operation > Chainsaws > Too Much Compression? Oct 7, 2019. Just wanna get a 2nd opinion. Here's a quick Stihl Chainsaw troubleshooting guide you can follow: 1. Even now, I think it's one of the best saw Stihl ever made. If a chainsaw has a 2 stroke engine, then the maximum compression it requires is 110-130 PSI. CapitaineHaddoc, Mar 23, 2017. I just bought an 075AV and it was delivered without a compression release. If it is a plugged breather,,,,I have fixed this issue by getting a vented fuel cap, problem solved. A compression gauge works much like a tire gauge, reading the pressure inside the engine. Stihl ms170 chainsaw will not start. Taking the plug out the saw pulls normally. You will notice the compression less. Hi, 1. Once started it runs great. Just wanna get a 2nd opinion. . The compression gauge hooks up to the cylinder via the spark plug hole. You need to replace the gas with a fresh one if you haven't used the chainsaw for a long time. Some individual engines may run a bit higher or lower and the temperature of the tool can affect readings. 1 Any small engine mechanic worth their pay would have pressure tested that carb after the rebuild. The newer professional Stihl saws have a compression release. Sem categoria. All went well with the build and it was a load of fun. To receive maximum performance and satisfaction from your STIHL chain saw, it is important that you read and under-stand the maintenance and . the 455) have CR, but he Stihl Farm Boss (MS290) does not. Always change the gas at the start of a new season. M. mountainlake . 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. If I pull on the starter cord without the spark plug in place, it will turn over with a nice, smooth motion. With luck a new ring would get it done, but good luck getting to it on those stihls. A compression gauge works much like a tire gauge, reading the pressure inside the engine. Here is what I've done: 1) new plug 2) complete carb clean several times..and all new gasket kit. All went well with the build and it was a load of fun. Compression gauges are not always accurate and different engines will provide different results. STIHL MS880 Magnum chainsaw for sale. This relieves engine compression and makes it easier to pull the recoil starter. The saw retails for around $409 as a bare tool and carries a 2-year commercial or 3-year residential warranty. The Stihl 066 chainsaw uses the same type of engine most gasoline-powered yard tools use, a two-cycle combustion engine. the ratio of gasoline to oil is 1:40. 1. saw has new carb 2. flywheel has been removed and key inspected. Chainsaw Compression Release. It's simple to check if you want to give it a try. Sem categoria. The dimension of the CPG of the chainsaw is determined by the diameter of the piston, the cylinder is slightly larger. it has fresh gas and bar oil. Replace the gas line and the breather system. Pull on the starter cord to determine if your saw has compression. Step 3 of 15: If your chain saw is fitted with a decompression valve, press it now. Cleaned the head & cilinder, here she goes! Description of the piston group Stihl 180 chainsaw. STIHL MS880 Magnum chainsaw for sale. Try blowing the crankcase out with air. Welcome to OPE. Cutting through some logs that were around 12 inches thickness the saw started getting stuck in the cut, ie there was not enough power to allow the chain to cut as it would normally do and it . If it were my chain saw I would drain out all gas and buy new gas and new oil mix if I had confidence in the spark being there. 1,988. It has a slightly better power-to-weight ratio than the . Once spark plug is put in and the saw has compression the saw will not crank. Select Page. My advice on ring seating. I fixed and checked several other things as requested but not much . Joined: May 2010. Gasoline to oil ratio for the Husqvarna chain saw. You don't need to remove the flywheel to see if it spun on the crank. Only show this user. If the compression is too high or too low, the engine won't start. Stihl MS 211/C with low compression issue. In other words, you need 25 ml of engine oil diluted in 1 liter of fuel. Our aftermarket suitable replacement Stihl 025 C chainsaw compression release parts meet or . These valves are mostly used on ch. read more Eric Noe Technician Stihl 251 chainsaw. But lowly homeowner Husqvarna Ranchers (e.g. The Stihl 025 C compression release will need to be replaced if it is broken or has significant carbon build-up. As a homeowner I didn't . Remember to top up the oil reservoir after each use with proper chainsaw oil. You can stall even a gas chainsaw by applying too much pressure. Applying leverage with spikes adds control, but go easy and listen to the pitch of the motor. Check the Gas. . TikTok video from Stefan Antoni (@stef.antoni): "Wouldn't start, too much compression. (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 Pull out the spark arresting screen from inside the muffler. I am having a starting problem with a Stihl 032AV chainsaw. Little two stroke motors as on chainsaws have to have a lot of compression to make the needed power. The ratio of gasoline to oil used is influenced by the power of the available chainsaw. It will be at the top of the engine cover, somewhere behind the front handle. on each additonal pull the saw cranks less until it nearly locks up L Lawnranger Well-Known Member Joined View or download the MANUAL for the Stihl MS 880. The minimum compression reading for chainsaws should be in the range of 112 to 112. safety instructions for all STIHL 026 series power saws. #16. Posted by 5 days ago. Jan 25, 2009. Advice: Too much compression making it almost impossible to start. Voc est aqui: Incio. Trust me, you'll love it! The saw was warm at the time. Actual cutting length will be less than listed bar length. My MS290 had develop a condition where at times it is impossible to pull the recoil; as if the saw is locked up. Many problems with compression are related to fuel. This presumes that the reading was taken accurately- it's easy to mess up things and get erroneously low reading. I'm trying to get a hand-me-down Stihl 032AV cleaned up and running, and have run into a bit of a problem. Pull on the starter rope until the compression reading maxes out. Allow only persons who understand this Manual to operate your chain saw. Turn the engine to get under the piston and blow the crankcase out. Just took it out of its case and attempted to start, and found it almost impossible to pull the rope. I built a clone Stihl saw ms660. Check the Spark Plug 0783 830 2000 - Stihl Tube Of Sealant Ht Red 70ml. Just enough to start when cold, and not run once hot. 2. Unscrew the spark plug using a ratchet and screw the compression gauge in its place. If the power of the tool is less than 2 liters. Step #4: Gauge the Starter Rope. Discussion in 'Chainsaws' started by redtractor, Mar 26, 2021. redtractor Super OPE Member. What is the minimum compression for my STIHL chainsaw? FRANCE. #. By John Rainford, November 21, 2019 in Chainsaws. The Stihl 064 was the first saw I bought in 2000. 3) new point's (set at .015) 4) replaced fuel line from tank to carb and pulsating line from carb to case. I us. It assists with firing the engine and starting your chain saw. #1. The early designs had a 10mm piston pin, and the later ones were 12mm. Serial numbers after X29382283 should have the 12mm piston pin. When this pressure, or compression, is too low or high, the chainsaw . Most chainsaws will operate well with compression readings that range from 100 to 160 psi. To one side of your Stihl chainsaw, you'll find a small, translucent plastic bubble. Click to see full answer. Stihl ChainSaw Won't Start, Reason 2: [Flodded] A Flodded Saw means that there is too much gas in the combustion chamber. Local Time: 2:17 AM. Our aftermarket suitable replacement Stihl 034 Super chainsaw compression release parts . Compression problems. I never thought of the breather system, yeah it could be that alright. Explanations of the purpose and value of a compression release valve on a chainsaw, and some advice on starting a stubborn saw with less pull-back on the rope. Carbon build-up can result from too much oil in the gasoline [mixed rich] or from using fuel of poor quality [fuel that has become stale]. Report post. I built a clone Stihl saw ms660. How a Small 2 Stroke Engine Decompression Valve WorksA simple explanation of how a small engine decompression valve works. We'll put together a complete MS271 Farm Boss review shortly, but here is a quick rundown of this most popular and prevalent chainsaw in the Farm Boss . . Using it a lot will cause sawdust to stick to that oil. it has - Answered by a verified Technician . Most chainsaws will operate well with compression readings that range from 100 to 160 psi. Next. A Measure of Pressure Compression is measured by using a simple screw-in gauge. Closes automatically as soon as the engine fires. While holding the unit, press down on the throttle trigger with your first hand and pull through with a swift jerk of the arm. Yes, some of the mid-size pro Stihls have compression release valves, and all of their big saws have it now. Owner of the latest Stihl MS660 I got into the shop said the saw ran OK. Part. A cool chainsaw runs low, while a hot engine that's been running for awhile will usually be higher. Step 2 of 15: Always remove the bar cover before starting your chain saw. Similarly a 4 stroke engine needs 2 times more compression than the 2 stroke engine that is around 180-210 PSI. You can see the cutaway for the key on both the crank and flywheel just by removing the nut and washer. I can't offer much in the way of compression specs- though if I had to guess, I'd expect to see at least 120lbs. If your Stihl chainsaw is hard to start, check the gas in the tank initially. Runs as it should with great compression, kept well maintained and used only 91 octane fuel, no issues whatsoever with the saw, don`t have a use for a saw this big anymore. However, this will vary by model and compression readings alone are not enough to determine the condition of the engine. At every attempt to start the saw, the pull-cord handle was nearly pulled out of my hand. Stihl 044 - 70cc. According to Stihl USA, the minimum compression reading for their chainsaws should be around 110 psi. Stihl chainsaws and (hand held) leaf blowers, I was told that 100lb is the minimum. The compression gauge hooks up to the cylinder via the spark plug hole. Old or bad fuel can cause lots of headaches with yard equipment. If it's the 10mm, neither the BB or OEM 460 parts will fit. 8.16. Compression should reach at least 90 PSI if it's hot, and at least 100 PSI if it's cold. Pull on the starter cord 10 to 15 times, or until the compression gauge needle hits its maximum level. When the rope is yanked from your hand, it's usually timing. The chainsaw has an oil reservoir which lubricates the chain in use. It also has the ability to accommodate either a 14 or 16 bar. . . The ideal pressure range of the Stihl chainsaw is between . This will change the timing and cause the ~SNAP~ problem. MS211 Cutting attachments. Carboned rings will decrease not increase compression. kwschumm Join Date: Feb 2003 Posts: 5764 NW Oregon Pics: . I have a couple of blowers that are about 70 to 80lbs. Stihl chainsaws and (hand held) leaf blowers, I was told that 100lb is the minimum. nk14zp, Stihl 041S and RedFir Down. A dirty air filter or a faulty ignition coil An excessively loose chain tension, oil leaking from the bar, and a worn-out spark plug are other common causes of poor chainsaw compressions February 22, 2011. Page 1 of 2. According to Stihl USA, the minimum compression reading for their chainsaws should be around 110 psi. To start your blower: Connect the red starter cord to the 'S' on the body. . 122cc with fairly new 36 inch bar and brand new chain, can run up to a 59 inch bar. When it was put away last fall, it started easily and ran well. My Stihl 290 chain saw cord pulls back real hard while trying to start it. Clean the screen and replace if damaged. Voc est aqui: Incio. Keep holding onto the unit while . Rollomatic E Light guide bars . Use the Allen wrench to remove the muffler's cover. Now how much compression does the engine of a chainsaw needs depend upon the capacity of its motor and temperature. stihl chainsaw has too much compression. Pitch: 3/8 P (9.32 mm) Groove width: 1.3 mm (0.050 in) Sprocket nose: 9-tooth. To properly check, tug the rope. During a two day softwood (Spruce) milling session, I recently experienced severe kickbacks from the pull-cord, when trying to start my MS 660. It has not been used in almost a year. Advice: Too much compression making it almost impossible to start. Low pressure, 20 to 30 pounds is all you need. It should support 7 pounds for 7 minutes. The following have been addressed. Pay special attention to the safety precautions outlined on pages 4 to 22. Aug 8, 2015. Runs as it should with great compression, kept well maintained and used only 91 octane fuel, no issues whatsoever with the saw, don`t have a use for a saw this big anymore. Pull some rope through your starter handle and tie a knot to make it shorter . If A two cycle engine gets flooded BADLY, oil can separate from the gas mix, accumulate in the crankcase and creates an hydrostatc lock. Virginia. Shop at Stihl USA. A cool chainsaw runs low, while a hot engine that's been running for awhile will usually be higher. But when I did it's first start it was so stiff with the plug in, that I need to use both hands and have my foot on top of the body. But being hard to pull sounds like light seizure problem.