I send my first message on this board and I''m flamed. What arrogance and from someone with so little experience admits to having never seen a neutral safety switch. In case he (and you) are interested, neutral safety switches are as much a part of engine systems as fuel filters. In fact the entire fleet of Island Packets have one, mine included, they are an intregal part of the shift mechanism. Shirt, my previous, 1982 S-2 had one installed. Anyway, and this is my last word on the subject, your engine is no doubt a Yanmar 3GM, and if so, put it in reverse when the sails are up and not motorsailing, IMHO, and that of the entire Yanmar engineering team.