MY JET SKI MOTOR RUNS GREAT SEEMS FULL OF POWER i LOOKED AT THE SHAFT AND I THINK THE SPLINES ARE OK AND THE IMPELLER LOOKS OK AS WELL . WHEN I DRIVE IT ,IT WILL ONLY GO ABOUT 10 MPH IT ACTS LIKE THE SHAFT IS SLIPPING . TO REMOVE THE SHAFT DO I HAVE TO REMOVE THE MOTOR. WHAT ELSE COULD IT BE ?
