Plug the livewell drain outlet with plumber’s putty and then dump some non-tox RV antifreeze in the livewell itself.
If your livewell drain takes water in and it freezes, you’ll crack the below-deck drain hose and start taking on water very badly. In theory, the livewell should drain back, but I don’t take any chances with stuff that could sink my boat.
Otherwise there are no real issues. Tilt the motor all the way down and allow the water to drain as soon as you pull the boat.
I don’t want to get into a big start it vs don’t start it debate. Personally, I always started it to let it run for 10 seconds and get rid of water in the impeller and pump chamber. I changed pumps every couple of years so the tiny amount of wear that this causes matters not the least.
Make sure starting battery is charged before you leave.
Grouse