All of this talk about low transoms and cut out transoms, being the
number one reason for outboard motors sinking, made me think about the
number one reason I/O engines sink is due to a failure rubber outdrive boot.

I check the boot annually and whenever I go in the water, but has anyone
seen a recommended life on a I/O. Seaworthy Magazine recommends
changing them every 5 years, but does this include fresh water boats?

My boat is 7 years old, and the boot seems as pliable w/o any visible
cracks what so ever, but I am feeling it might be time to change the
sucker.