mercruiser i/o winterization

[abl1111]

I want to properly winterize my 2004 mercruiser 5.7 liter, 300hp freshwater-cooled i/o ( and bravo 3 drive ) myself this year - This is my first i/o motor and am unfamiliar w/ the process. Prior to this motor, I was an o/b guy and did all my own work.

The last season I had my mechanic winterize, but this year; new house, a 1 month old baby - I have yet to find where $ actually 'grows on trees'.

So, either how is this done, or where can I read, in detail, about what needs to be done.

Thx.