My dad purchased a 97 skeeter ZX202 w/Yamaha 200 about a month ago. It has a 3 blade 25P Tempest prop..

When coming out of the hole it cavitates like crazy.. If we are more than half throttle it wont take off like it should. Any ideas?

There is a fin on the motor, should that be removed? The motor height seems to be correct, or at least very close. Water pressure is good, and top end speed is right where it should be..

Thanks!