Maustarman

Hello Everyone ..Im new to the forum ... I just picked up a 1975 Yamaha GT80 mx ... its in pretty bad shape but the motor turns and I think I could run.... I really have no idea where to star but I think the first thing is to get a shop/repair manual. Ive searched and havent found much,,, Anyone have an Idea of where to get a PDF of that manual.. Ill really appreciate any guidance. Im sure ill have lots of questions down the road... Thanks Maurice