I had a carb gasket deteriorate in my OS46FX. I too just put a few drops in the carb and spun the motor a few times. Can't say for certain that after run oil in the carb did that but OS says it will and not to do it. On the other hand the after run oil says to add it in the carb. venturi.
I take the extra minute to remove the glow plug as suggested these days.

La la la ho hum I would simply delete this pointless commentary if I knew how. I usually try to help, really I do.