Force 1998 engine over revs

[Philbiily]

I have a 1998 Force 120 hp. wife backed boat into the bottom of the lake bent the prop. I replaced the prop this summer and used old hub insert kit. When I start going forward doing a hole shot the engine overrevs and I have no forward motion, if I ease into the throttle I can get up to 2500 rpms before the same thing happens. my revs also has some same conditions. I checked the shift cable it is good to go took the prop off and checked it no metal transfer on prop shaft. Do you have any idea. Unit is on a 16' 160sf and w/ a 19 pitch prop would do 56 MPH.

 

[maxum247]

Re: Force 1998 engine over revs

Sounds like the prop is slipping on the rubber insert. Put a mark with a permanent marker on the side of the prop nut and the face of the prop, take the boat out and run it a bit at different throttle speeds, trailer the boat and check your mark if it is out of alignment the prop is slipping on the insert.