I picked up this older emmick kart last week. I believe its early to mid 90's.
Currently sporting flathead B&S 5hp turning 7000rpm. 14 clutch,71 sprocket. 45mph and handles very nice.
No plans as it currently is setup nice, I have another build underway.
A homemade frame running a 390 clone, comet 40 with a 34 roadster body. Hope to finish this project this summer and then we will see