[ravid333]

Forward works great. In Reverse the prop will turn pretty fast when out of the water but when we put the boat on the lake it wont "reverse" the boat.

[NJCinMN]

I'm having the same issue with my 1969 Merc 1000. I think I found my answer in a response to my post (link below). Read through it, likely a similar issue. Although you may just need to adjust the barrel stop at the end of the cable.

http://forums.iboats.com/showthread.php?t=333223