I bought a bassboat with a Evinrude V4 110 VRO, but the model # tag tells me it's a 1977 85 HP. model 85799S Is there ANY other way to find serial # and model # ??? I think the 110 vro was only made from 1986 to 1989... the boat is a 1977 hydra sport. Was the tag from original engine/tilt...