Swimsuit Issue – 1977 Yamaha RD400
Mid-seventies the two-stroke era was winding down, most manufacturers were looking for ways to tie their new mid-size four strokes to their smoking forebears. Yamaha stretched it out, keeping the RD-400 in the line-up until 1980. For 1977 they offered cast wheels, all disk brakes and 14-second 1/4 miles. 1977 Yamaha RD400 for sale on…