These pictures come from Fried Anepool, the founder of the Dutch "Yamaha 650 Twin Club Nederland" (now in its 20th year already!)

In July 1959 the first pictures of the Yamaha YDS-1 appeared in the Japanese magazines.

The YR1 introduced in Feb. '67 was Yamaha's first full 350 cc machine. Yamaha put all their engineering into this machine and although it was a little heavy, it proved to be very good.

After the successful YG1 model Yamaha quickly introduced a 50 cc version, the Yamaha YF1, in Apr.'64. This model had a leading link frontfork from the MF2.