I have a 1993 Bayliner 2452 with a 5.0L and a Gen 2 outdrive. I just replaced the bellows, Gimbal, and shift cable with all new parts. I have forward gear but when I shift to reverse it cuts out. I disconnected the lower shift cable from above and shifted into forward by hand with ease with the motor running. Then I shut down the motor and restarted it then tried to shift to reverse but it wont move. What should I look at next. The boat is in the water in a slip and I don't want to have to take it out. Could the problem be in the outdrive? Thanks, Mike