Hi, Turn the L and H screws in gently until they just stop turning (no force at all) first. Then back them off 1.25 to 1.5 turns from closed. Set the L speed first unit running so that the unit does not stall when trigger is squeezed and then MAX throttle adjust the H screw until you get max speed. Recheck for stalls when trigger squeezed again and repeat above steps until you have no stalls / hesitation and max speed.
ADJUSTMENTS should not be much more than the width of a screwdriver blade on either screw before re-testing. Never more than 1/8 th turn per adjustment for sure.
Kelly
Hi, Screw both "L" & "H" mixture screws all the way in untill you feel them stop, the undo each screw by one turn. This puts them at basic setting and should enable you to start the engine. once started you can fine tune the carb if necessary. Hope this helps, Doc Scott.
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