Happ51 wrote in message ...
My mercruser outdrive grinds going into forward and reverse. I have
slowed the idle down to required RPMS. Is there an adjustment to stop
this?

Is this boat new to you? The reason I ask is because Mercury uses cone
clutches in their outboards and outdrives, and cone clutches do make a
grinding noise when you shift them, it's perfectly normal, and not a
sign of anything wrong. It gets a lot worse if you try to put it into
gear slowly. Your best bet, just push it into gear, don't go slow. And
enjoy the fact that noisy cone clutches will out live the nice and
quiet ones by a long shot.