Im having a hard time I.D. ing motor. Ive been told its a 80 h.p., I believe it is a 1979. There is a piece of a yellow sticker on the air cleaner that has 1979 on it. Ive searched allover and cant find the tag with model #. I believe it has been taken off. Ive been told their is a frost plug that has a number on it also. The # on the plug reads 85999R and J0001247 on the bottom there is a Decal that reads 1632cc?
