I wrap my engine with moving quilts. I also place a low watt light bulb under my oil pan to keep the engine from freezing and possibly cracking the block. And I place a tub of kitty litter somewhere in the boat so it will absorb some of the moisture that will occur. Believe me its's not a pretty site to take your cover off in the spring to find black mold on your seats, steering wheel, etc. Or to find that the condensation pitted the surfaces of carbs and whatnot. Believe me, I learned from experience. Winter sucks!
Lakelily
I did the light bulb method ONLY after returning back from the river, and lived in Big Bear, 110* at the river, 22* at home, till the next day so I could winterize it right.
After one MISSING freeze plug event at Needles, (found out in the marina, freeze plugs are below water level) I would winterize at the ramp, before heading home, 250 miles. (2 engine plugs, lower hoses on the logs, 5 minutes tops). Now living in AZ, Mines only winterized for about 60-70 days anymore ( mid Dec to mid-late Feb)
Daniel
Mash on it