The removal of the carburetor fuel line is very sensitive.Make drawings drawing on the lines connections to allow easy re-assembly. However, now it is acting odd. Cleaning a carburetor on a chainsaw without removing it can be done with a few simple steps. Clean out the air filter and carburetor. We like to help other people maintaining their garden and find cool products to write about. //specify random images below. Chain Saw: Engine Will Idle But Dies At Full Throttle Its all about adjusting the carburetor, and a slight change in the orientation can lead to Chainsaws Bog. The best/easiest way to do this is to poor some motor oil on the outside of the crankshaft and then also fill the engine with motor oil. Make sure they are closed at a distance and neither touching the engine and not too far from it. A "rich mixture" occurs when you have too much gasoline with the amount of oil in your fuel mixture, resulting in a poorly operating chainsaw. You can have as many as you wish Also cleaned muffler and replaced spark arrestting screen.All with no luck. My STIHL Saw Keeps Stalling | Home Guides | SF Gate ). I took it back to the dealer and he said he adjusted something and handed back saying it would work fine. Nearly every weekend you will find us doing small or big jobs or just enjoying our garden. Make sure to take out the spark plug before removing the filter. Make sure it is moveable and not stuck in the open or closed position. You must locate the perfect setting at which the engine won't stop once the throttle is applied. Another possible cause of a Stihl chainsaw bogging down is a broken or worn chain. Unless you are running an electric chainsaw (which is a totally different beast), your chainsaws motor is a combustion system that relies on a proper ratio of gas, oil, and air. When a screw (e.g., anL screw) is tightened, the fuel flow to the carburetor is restricted, causing the mixture to be lean. myimages[1]="../../../images/top-banner/ez50-banner.jpg" Chainsaw Starts Then Stalls | Repair Clinic Why Is My Chainsaw Bogging Down? A new chainsaw has some protocols to follow. So I am just wondering how to go about pulling the carb off the easiest way to check out the jets. The Basics Explained, Can a Concrete Chainsaw Cut Through Rebar? I tried putting new gas in it and starting it up but it didn't make a difference. Just took off the muffler and it all looks good. . For that you require a carburetor cleaner. (3 Common Causes). Check the fuel tank for the correct fuel and oil mixture, filling it up if necessary. In both cases, your chainsaw will be affected as it can damage the engine and your chainsaw might die off when you give it gas. Clean or replace filters located in the fuel tank of your chain saw. Get a carburetor repair kit before you begin clearing the blocked jets. As a result, the engine runs at too high or too low RPMs. Dont forget that a maintained chainsaw is a working chainsaw! Or maybe gas varnish in the screen filter at the base of the metering needle. It is responsible for mixing fuel and supplying it to the engine. Click to see full answer. If the carburetor is clogged or not adjusted properly, it can cause the saw to run out of fuel. If you experience low compression, pull the muffler and check the piston and cylinder for, Read More How Much Compression Should a Chainsaw HaveContinue, Collect a new fuel line, a pair of pliers, and a screwdriver. LancelotLawns said: I bought a stihl bg85 blower/vacuum two days ago. If your chainsaw starts but does not stay running, the low-speed (L) and idle screw (I) may not be properly set. The L screw controls how much fuel enters the carburetor at low speed, whereas the H screw controls how much gasoline flows into the carb at high speed. Rotate the fuel supply lever and keep it in the on position while you spray the carburetor cleaner. 3. Allow the cleaner to sit for five to 10 minutes and then wipe away with a cloth. Check the spark plug as well to examine the ignition system. Most Craftsman models have either a standard Walbro or a Zama carburetor. To remove it you need to depress a small tab and slide the fuel line off. if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[320,50],'remodelormove_com-box-3','ezslot_6',175,'0','0'])};__ez_fad_position('div-gpt-ad-remodelormove_com-box-3-0');if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[320,50],'remodelormove_com-box-3','ezslot_7',175,'0','1'])};__ez_fad_position('div-gpt-ad-remodelormove_com-box-3-0_1');.box-3-multi-175{border:none!important;display:block!important;float:none!important;line-height:0;margin-bottom:7px!important;margin-left:auto!important;margin-right:auto!important;margin-top:7px!important;max-width:100%!important;min-height:50px;padding:0;text-align:center!important}Lastly, if the air filter is dirty or clogged it will restrict the air flow and cause the saw to lose power. Its an essential step in properly maintaining your chainsaw to check and adjust the chain tension. A well-maintained chain-saw seldom stalls. They wrote it up as I ran straight gas through it and seized it. The air supply is equally as important as fuel for a combustion engine. The answer is simple; you check your chainsaws owners manual. After checking that, soak the crank seals in motor oil (30w works great) and then give it a go. Proceed with adjusting the carburetor adjustment screws to fix a chainsaw that wont start. If the air filter is clean, then the spark plug should be cleaned and gap adjusted to the manufacturers specifications. You must log in or register to reply here. Answer: Yes, a chainsaw can bog down if gas is supplied to it. If user's chainsaw is bogging down than this is often a sign of improper gas-to-oil ratio. Los Angeles, CA 90013 Outside of family, He loves grilling and barbequing on his Big Green Egg and Blackstone Griddle, as well as working on projects around the house. Even without an incident of stalling, it is important to carry out regular repairs. Started by ellinghamso This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. This can also be caused by bad fuel. Inspect the spark plug and replace it if necessary. It did sit with gas in it for a while, but there are no visible signs of any damage to the carb as a result. It would do the same thing, die when you give it fuel, It would also idle way down when I was adjusting the carb, not from turning the screws all you had to do was just push on it a little and it would almost die. Replace it if the quality has deteriorated. Chainsaw Starts but Dies when I Give it Gas. Tips from a Pro It should measure at 0.5 mm (0.20 in). If your chain starts to spin, loosen the idler screw until it stops. myimages[6]="../../../images/top-banner/EZ-junior.jpg" Why Does My Stihl Chain Saw Bog Down When I'm Cutting? If a chainsaw is bogging down when it is throttled, this indicates that the gasoline to oil ratio supplied to the saw has been incorrect. Register today and take advantage of membership benefits. Clean air intake slots on the housing of the starter and inspect your starter cord for any damage. Apr 16, 2009. Stihl Chainsaw Bogs Down When I Give It Gas - WHYIENJOY This issue can be fixed with the help of the user manual you received with the chainsaw.