last fall the motor sounded like a tractor at high speeds, the mechanic said a clip had broken and i had missing gear teeth in lower unit, cost to repair was 1200.00 now motor will not shift to neutral from foward gear, to shift to neutral i have to go to reverse(which chatters) then to neutral. is this problem related to previous repair. Also when going into forward gear and increasing throttle it is very stiff, much more than when boat new. I have purchased a manuel and I am going to try and repair this problem myself since I no longer have funds to pay someone