I just finished a tune up on my newly acquired 1985 4 1/2 HP Merc, put it in the barrel and it started first pull! I ran it for about 20 minutes and noticed a very tiny and intermittent water spit coming out the exhaust. The "pee hole" was a consistant stream. Is the water with the exhaust normal? I never noticed it with my 20 hp Evinrude.<br /><br />thanks