Like a lot of carburetors try all the way in and back out 1 ½ turns for the low RPM and out maybe ½ turn for the high side and test for running. Get the idle first if it is half is running. That's the other screw for the idle speed low enough so the chain will not turn. then check the high side so it rev well. If you use the chain saw a lot making it too lean will over heat it or you could add a little more oil in gas.
Pink Panther
April 2008
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