Always wear the proper personal protective equipment when working around high voltage. The remedy is to close the screw, but closing it too far is dangerous for the engine. I have a ~10 year old Stihl 036 saw that I can't get started. Chain saw against firewood pile image by Andrzej Thiel from The engine needs a spark to ignite the fuel, that’s what the spark plug does. … Tug on the starter cord and look for a blue spark across the "hex" part of the spark plug, according to M & D Mower and Appliances' article, Engine Repair Help. When enough magnetic energy has been generated, the ignition module gets tripped. When the spark isn't firing correctly, an influx of gas can bog the engine down or cause it to not start at all. If you are not getting a strong spark, I recommend checking the air gap between the ignition coil and the magnet. It is called a STIHL Quickstop® chain brake. The spark arrestor is behind the muffler. The reason for that may be you're using the saw at altitude or the carburetor adjustment has simply slipped. Test for spark. If your Stihl chain saw purrs like a cheetah when it's idling but stalls when you actually try to do some work with it, it could indicate the carburetor isn't adjusted properly. Copyright 2020 Leaf Group Ltd. / Leaf Group Media, All Rights Reserved. Use the screwdriver to take off the top cylinder cover, which houses the air filter and spark plug. Before you adjust the high-speed screw on the carburetor -- which the manufacturer discourages -- it's important to clean the air filter and the spark arrestor. The cause of the scored piston and cylinder was two-fold: incorrect oil/gas ratio, as well as the saw being set to run too lean. Hold the metal threaded part of the spark plug in one hand and pull the saw over with the other. When the high-speed screw on the carburetor is open too far, an excess of fuel enters the combustion chamber and not all of it ignites. The other wire that comes off the switch goes to a ground wire. Set the idle screw to the point just before the chain starts spinning and adjust the low-speed midway between the the two points at which the engine starts to die. It is needed in order to set fire to fuel and bring the engine into a state of full-fledged long-term operation. Dalom MS290 Ignition Coil Module w Spark Plug for Stihl 024 026 028 029 034 036 038 039 044 044MAG MS390 MS440 Chainsaw Replaces 0000-400-1300 4.2 out of 5 stars 29 $12.98 $ 12 . It has not been run in at least 4 years, but I did test spark/compression today (10/23/20) and it has good spark and 150psi compression. On most Stihl's this can be accessed from the top of the engine, underneath the chain brake handle. It's a small screen you can simply pull out after removing the muffler cover. Ultimately the problem was due to low compression. According to Stihl's engine service manuals, when the engine has no spark or a dramatic, sudden loss in power, the problem could lie in the ignition system. If it's broken or damaged somehow, even your new chainsaw won’t start. Using a good quality spark tester, pull the starter rope with a good fast pull and check for spark. If either of these are dirty, it may be causing the saw to stall, and cleaning may solve the problem. 1 mm, it is most likely … At this time, the saw may work, but the work will be unstable and currents will walk. Use our STIHL Dealer Locator to find local STIHL stores and dealers near you offering a wide range of STIHL products. Chris Deziel has a bachelor's degree in physics and a master's degree in humanities. Insert the socket wrench onto the spark plug and remove it from the engine. Jump to Latest Follow Status Not open for further replies. If all else fails then it could be your spark arrestor which is at fault. Clean it with a wire brush. Starter Parts Tool Parts Transmission, Brake & Clutch Parts. One of the greatest precious parts of the chainsaw to make it start is the ignition coil. Without the right amount of air and fuel in the piston cylinder, the 2-cycle engine in a Stihl chain saw runs inefficiently and the saw loses power. © Copyright 2020 Hearst Communications, Inc. Spark plug failure is not uncommon, particularly with 2-stroke engines – like those used for most chainsaws. Flip up the handle located … Problems anywhere in the ignition system will stop your engine. According to Stihl's engine service manuals, when the engine has no spark or a dramatic, sudden loss in power, the problem could lie in the ignition system. If a spark occurs only at a distance of 0.5. Currently based in Minneapolis, Minn., Eric Blankenburg has been a freelance journalist since 2000. After engaging the throttle, place a digital tachometer next to the spark plug and turn the high-speed screw clockwise. Troubleshoot a Weak Spark on a Husqvarna Chainsaw, Troubleshoot a Stihl Chainsaw that Is Hard to Start, My McCulloch Chain Saw Won't Stay Running, K & T Parts House: Free Stihl Parts and Service Manuals, M & D Mower: Lawn Mower and Small Engine Repair Help. It's in great shape and hasnt been run much especially in the past few years (probably the source of the problems). Find many great new & used options and get the best deals for NO SPARK FIX YOUR STIHL 031AV (031 030) IGNITION COIL PROBLEM (REPAIR SERVICE) at the best online prices at eBay! It should be a blue/white spark. Free shipping for many products! Related: Stihl 311 over heated twice with normal use and care It was just our of warranty after little use. Place the sparkplug wire onto the sparkplug but do not install the spark plug into the cylinder, leave it dangling loose. This is a sign that the spark is walking along the outer ceramic coil of the spark plug. I have a Stihl MS460 Artic chainsaw it will run strong for 20 minutes then it starts bogging out looses power and cuts out. Here I document, with pictures, the procedure taken to repair a Stihl MS291 Chainsaw that would not. 8. Make sure the spark plug is gapped according to your manual's specifications or else the engine won't start. It is there the prevent sparks from flying out of the chainsaw but it has a dual role of affecting the fuel-air mixture inside of the engine. Hold the rubber plug and spark plug, with gloved hands, about 1 to 2 centimetres from a metal point on the engine block. Put the plug under compression the fire will be different. Stihl Plug Gap 0.20". 1. Bought a Stihl 211 Chainsaw. Shop by Stihl Chainsaw Parts. Stihl carburetors have three adjustment screws. 5. Check the coil’s primary ignition circuit. Replace any wires if they are damaged or corroded. The STIHL Quickstop® chain brake is designed to stop the rotation of the chain if activated by the operator’s hand or by inertia if the saw kicks back with sufficient force. Without the right amount of air and fuel in the piston cylinder, the 2-cycle engine in a Stihl chain saw runs inefficiently and the saw loses power. Details about Chainsaw Big Stihl 048, 77cc, 150psi. Look at the tip of the plug for carbon corrosion and check the gap. Shop by Popular Models. Wipe any flammable gas or oil from the metal spot on the engine with the rag. $46.98. Note: On Stihl models 031, 032 and 041 these coils have a spark advance built into them and the ignition chip will cause misfiring. Dealer had the saw all Summer; then Stihl agreed to sell me a new engine assembly for $150. Check the spark … If you do not have a good spark, I recommend replacing the coil. What spark plug for my STIHL trimmer, chainsaw, or blower? The main element of the ignition system is the spark plug, which must be ignited whenever the engine is in the right cycle.

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