The next 10 years for the Yamaha YZR500 (1981-1990) were quite spectacular.

All pictures are in one (larger) size only, but maybe you can enlarge them yourself !!

The Yamaha 0W53 of 1981 is the last GP racer with a four-in-line motor. The frame was an updated version of the Yamaha 0W48R. The picture shows Barry Sheene's machine. Actually it was a "just-in-between" model awaiting the new Yamaha 0W54.

Yamaha 0W53, 1981