Tim:

I can't speak for that particular engine, but here is some general advice:

To prevent gum forming in your carburetor, close the fuel valve and run the
engine until it dies from fuel starvation just before pulling out of the
water the last time of the season.

Most, maybe all, outboards are self draining if you leave them vertical for
a few minutes. One gotcha is the prop. With the O/B tilted up during the
winter, rain can collect in the prop hub, freeze and crack the hub. Store
the O/B with it tilted near vertical to prevent this.

Another thing to do is to remove all spark plugs and crank through the
engine while spraying WD40 in the plug hole. This will coat the cylinder
walls and prevent rust over the winter.

That is about it for winter storage.

David