Hello all! First post here and just purchased first boat . She is a 1998 Signature Bowrider 210 with a 5.0L Mercruiser. Live in the Seattle area. First question as well....To freeze protect the engine do I just need to pull the 4 petcocks off of the engine and 1 for the manifold? Any other tips appreciated to winterize. I store her under a lean to with cockpit and bow canvas custom covers.