Hello all. I have an issue with my Merc 120 2.5L. I just bought the boat last year (my first boat) and it wouldn't start. There is no compression on cylinder #4 so I pulled the valve cover off and found the very last valve stuck all the way open. All of the others seem fine but I was wondering if theres a trick to gettin it unstuck or if I should just pull the head off. If anyone has run into this before any advise would be much appreciated.
