Question about Craftsman 25cc Gas Line Trimmer

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What is carburator ajustment screw setting

What is carburetor adjustment screw setting after bottoming out

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Just about any 2-cycle can be started by bottoming out the pins fully. (All in, clockwise rotation) Then, back them out 2 and a half turns. Remember, this will get it to start! Getting it to RUN will take some tweaking. If it idles, no worries, the idle is just there to keep it warm. Concentrate on fiddling with your high speed screw after the engine has idled up to operating temp for at least 3 minutes, and when placed into LOAD. NEVER adjust by sound or feel with NO LOAD. Too easy to get them too lean and pop their little heads off. ;D

Posted on May 09, 2010

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Posted on Jan 02, 2017

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