Winterization?

I have a 1974 Chrysler out board boat Im a first time owner and I live in Wisconsin how do I winterize it or:I have a 1974 Chrysler out board boat I'm

I have a 1974 Chrysler out board boat I'm a first time owner and I live in Wisconsin how do I winterize it

or:I have a 1974 Chrysler out board boat I'm a first time owner and I live in Wisconsin how do I winterize it

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