I was curious if anyone knew exactly what year my Yo Eddy!! might be?? I was working at a shop in the early 90's when a customer traded it in for a Klein (he thought the Yo was too heavy!!). I think its a 90 or 91, but can't remember exactly. Any ideas?
Not entirely true. You are correct that they did refer to Yos as Small/Medium/Large, etc. but they also used there inch size in the serial # on the early Yos. My 1990 is 023Z07 which is a 17" (Medium). The serial number books have columns with check boxes indicating the inch sizes (last serial # digit) for the earlier Yos. In '92 (I beleive) they started using the S/M/L Letters within the serial number instead of the single digit inch sizes. Cheers, Jon