Hi Guys, Anyone know where to look up VINs for bikes earlier than 1980? Also, how early the previous year would a bike be built then sold as the next years model? For example, I have a Yamaha DT250 titled as a '76, yet it was manufactured in March of '75. I know the new bikes come out late Summer early Fall for the next year, so if the frame sticker says manufactured in '75, could it be a '76 bike? Thanks, Tim