help me winterize 5.0 I/O

[davemcf]

I own a 1990 larson lazer 20' bowrider with a 5.0 mercruiser I/O. I just bought the boat this summer and I am now going to attempt to witerize it. I am looking to find all of the drain plugs. I looked quickly for them but couldn't locate them could someone please help me, and tell me where they are and what they look like. I am fairly mechanicly enclined when it comes to cars, and I winterized my old four cylinder boat, but that was easy as there were only two drain plugs under the manifold that stuck out like a sore thumb making it nice and easy. please help me and thank you