Paul my rims are 14". Me and matt went out for a few hrs today. 2mins in I blew both belts off the engine. Luckily the one that was still good was the one I really needed. Get it on and hammer down. The boat wont plane. Ride it this way for a few minutes and eventually it breaks free enough to get on plane and up to about 30. It does this throughout the day and I am hoping that a tune-up will fix it. I dont know why it revs strong in neutral, put it in gear, nothing. Also what sence does it make that it eventually(5mins) it will finally open up enough to get some speed(on plane)? Even at speed it was grossly underpowered like it wasnt firing on all cylinders.