Hello, I have 1998 dt 225's. When in the water the engine speeds up and prop is either slipping or is not turning, when in foward or reverse. I can't see it do to the exaust bubbles. But when I take the boat out of the water and put the engine in gear not running I can't turn the prop. by hand. If I put the engine in nuetral I can turn it by hand.<br />Ant ideas?<br />Sincerely, Pat