07-19-2019, 01:33 AM
I had a red 1977 RD400 that I bought new in college that was exactly like the one in the link. It is hard to believe that bike is so clean after 35,000 miles. I would not be surprised if that motor has has to be rebuilt over the life of that bike. Tiny transfer ports often got blocked with carbon and seizures were not uncommon. Plus, with a roller bearing crank I would think that 35,000 miles would take quite a toll. Nothing wrong if it has seen motor work--I would consider it normal.