This motorcycle was one of two bought new by my father in 1977 from Twin-K Yamaha in Detroit Michigan. They were shipped to Venezuela where we lived. My brother raced it in the 1978 Venezuelan Grand Prix of the FIM World Championship qualifying 19th (first TA). I later rode it in AHRMA in the United States. I rebuilt/restored the bike about 10 years ago. rebuilt crank (new rods and bearings). new cases. pistons. rings. seals and rolled it into my dining room. It has a Fontana 4-leading shoe drum brake as was raced in the GP. The rims are not original. most everyone went with wider WM-3 rims to take advantage of the new Dunlops. It also has a box section swingarm and Koni shocks. I can’t remember who made the swingarm. The bike needs some odds and ends. Front brake lever and perch. plug cap. rear brake cable spring. shift link rod. Frame # 400-990258. When I did the motor I used a NOS set of cases I had. The matching number engine cases #AS3-990258. original front brake. and standard shocks will be provided. I have some fairings laying around. Buyer will have to arrange shipping and I will help to get it to a local shipping company for shipment.