Re: Boat Shuts Off when shifted into reverse
That sounds like a possibility.
A sticking shift cable could cause the shift interrupt to engage when shifting to reverse.
As for a big job, it depends if it the upper or lower cable, upper is not to bad to swap, the lower will require the removal of the drive. and then you have to learn how to adjust it once the new one is installed.
For the lower the cost sounds reasonable if you have the money, then you have a warranty also. If you do it yourself,,,,, well the only warranty you have is you.