Here are a couple sites about the subject:
http://www.sterndrives.com/supplies/winterize.html
http://www.boatsafe.com/nauticalknowhow/winteriz.htm
Hope This Helps.
Go to winterflush.com Its the newest most efficient way to winterize But, if you need a professional to service your Volvo penta engine try this company, they can tell you if you have properly winterized you engine- http://www.powerproductsystems.com/Service-Request.asp
winterize it only if you want it to work in the future
No.
The Willis Report - 2011 Winterize Your Car was released on: USA: 10 December 2013
2 bags of concrete
you go to it and throw it away
Follow the link for the steps.
That is the correct US spelling of the term "winterize" (make ready for colder weather). The UK spelling is winterise.
winterize 2013 yamaha 4 stroke twin jet boat
Drain the water and put antifreeze in the pipes
http://www.ehow.com/how_2087098_winterize-jet-ski.html
At ASK.com revealed lots of possible answers.