I just received a motor for my boat. I believe it is from the 1950's or early 60's. I was told it is a 33 horse Evinrude. When I went to attach the positive & negative cables to the battery the starter started to operate. There are also two small wires that are taped to the cables, I assume that they are for a key start switch. The two smaller wires where not touching anything when I tried to attach the battery cables. Can any one help me here?