View Full Version : 1995 evinrude 60 degree 115 hp noise

January 29th, 2007, 11:32 PM
the noise is hard to describe but?

At any planing speed 3500 say.rpm will drop 50 to 100 . Then a boom through hull. Like you hit kelp or something. rpm back to normal.Engine rpm does not go up or down like it would if you turned key off and on quickly,or it shifted into neutral.