The TZ700 soon became the TZ750 and was then banned (along with the Kawasaki triples) and the rules changed to 4 strokes only.
As Kenny Roberts said: "they don't pay me enough to ride this thing".
(2min15)
https://www.youtube.com/watch?time_c...&v=8k8hJWKIVNs (from 2009)
Kenny is doing a commemorative ride at the 3min30 point but the crowd is so loud you don't hear too much of the bike.