Back in their day, these ruled the roads. But they were a bit fragile and tended to go pop if mistreated. Then along came the 350 YPVS, a real kick when the power valve opened, and was top dog till the RG250 Gamma arrived on scene. But they soon found the ideal combination was the RG250 chassis with a 350 YPVS motor and thus the Gammaha or Yamagamma was born. Seen a few of these at Devils Bridge in my time.
Would i like to ride one now, nope. Rode a 250 YPVS import back in 90/91 and it was fun, the kick at 6K rpm when the YPVS kicked in, the front wheel lifting as you gassed it hard. All brilliant memories, but after riding modern bikes the chassis will feel flimsy and the tyres some what lacking, though the Metzler ME99/33A combination was the dogs back then. I shall make do with the happy memories of chassing bigger bike to Devils Bridge and having my leathers, my jeans and paddock jacket smell of Catrol R
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