Well, crap! After cleaning up my carbs on my 1988 XP 200 (on a newly acquired 1988 Champion Bass Boat), I went to drop in new plugs and decided to do a compression check. Here's what I found: 59, 99, 99, 99, 99, 96.
So...now what? Do you do like car motors and tear it down, replace the other 5...