what should the compresion be for a 1956 30hp evanrude
M mike.1 Cadet Joined Mar 15, 2009 Messages 6 Mar 15, 2009 #1 what should the compresion be for a 1956 30hp evanrude
tashasdaddy Honorary Moderator Emeritus Joined Nov 11, 2005 Messages 51,019 Mar 15, 2009 #2 Re: compression for 56 evanrude over 100 psi within 10 % of each other. the higher the better.