I am unable to remove the bottom drain plug on my lower end----Force 1989 125 HP any ideas?? The head on the allen inset is rounded out enough to where I can't get it to grab for loosening. Removal is counter clockwise correct?? Any suggestions appreciated.<br />Also, may be in the market to purchase a used lower end as the bottom fin is broken off----was that way when I bought it. Not much of a mechanic.