Hello I have a 75 70hp Johnson I did a compression test just to see where it was at, motor runs well but wanted to test anyways anyways I have 110 on two cylinders and the bottom cylinder has 97 is this something I should worry about or run it? Or would a new headgasket help? Motor was new to me this year did a lot of work to it coils powerpack fuel lines added tell tale lu oil change plugs filters basic maintenance along with a new impeller.
