I bought a boat a few months ago and I am just now getting around to getting it going and i cant for the life of me remember what year the guy told me the engine was. The cowl says its a 100hp V4 Evinrude but the tag on the transom mount is partially missing, all ive got are the first seven letters - J100WTL -. I checked the freeze plug but it doesnt have the model either. The tilt motor is bad and ive want to make sure ive got the right year. Thanks in advance for any advice on how to proceed.