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Unscrew the screws at the bottom of the carb and remove it, pulling the bottom off and removing he gasket and diaphragm. Exciting insights to the work of professionals with chainsaws in the mountain forest can be found here: Heli-logging. Then run the chainsaw again to see if its all good. If the engine doesn't stall until you depress the throttle, tighten either the low-or high-speed adjustment screw to improve performance. JavaScript is disabled. The sprocket enables the chainsaw to spin. Start with the air filter housing filter and air filter, and take off the bolts holding down the carb and gasket. Or maybe gas varnish in the screen filter at the base of the metering needle. Your chainsaw will stall if it doesnt receive the proper amount of air and gas. Thanks for the advice guys. With low pressure can of compressed air, carefully blew out the small openings. The proportion of fuel flowing out and air flowing in is equivalent. You may have to remove the carburetor, disassemble it, clean each part with carburetor cleaner and rebuild it. Using a flat head screwdriver, adjust each screw on the carburetor until a point is reached where the RPMs achieve an optimum value, which is neither too high nor too low. However, if the cap is loose and air flows in, it will cause the fuel to spill out. In this blog post, I shall discuss everything you need to know to optimize your chainsaw's idle condition. An important part of diagnosis of engine stalling is to remove and examine the spark plug. Clean the internal parts of your carburetor now with carb cleaner, using a soft brush to get inside all the holes. Ok, so $35 on ebay for a new 60mm piston kit and cross my fingers that i can salvage the cylinder. In post #10, the picture of the carb you can see the remains of the black gasket on the top cover. May have to go back and forth between idle & L mixture screw. If your chainsaw stalls instead of producing the reassuringly high-pitched sound of a healthy engine when you press the throttle trigger, something is interfering with efficient fuel. Also, you can try using 10w40 chainsaw bar oil.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'thejimbosliceworkshop_com-large-leaderboard-2','ezslot_8',112,'0','0'])};__ez_fad_position('div-gpt-ad-thejimbosliceworkshop_com-large-leaderboard-2-0'); This is mostly because of poor carburetor adjustment. The carburetor controls the ratio of fuel to air coursing through the engine. if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'thejimbosliceworkshop_com-medrectangle-4','ezslot_1',109,'0','0'])};__ez_fad_position('div-gpt-ad-thejimbosliceworkshop_com-medrectangle-4-0');With time, your filter gets clogged with harmful particles. Make a note of the position of the screwdriver slot and compare it to the position of the lean adjustment. The built-up gas gets stuck inside and harms the chainsaw further.