I have a 2001 Yamaha xlt 1200. Have had 3 different props and ware rings installed in one year. The ski will only move with the trim all the way down . I have to hold the rpms at exactly 5,000 and wait for the ski to get up on plane then I can do whatever . But if I even go to 5,001 the rpms will max out in a split second and the ski won’t move! Please help!!