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Re: 1969 Yamaha YR3

Posted: Fri Feb 09, 2018 3:25 pm
by Zunspec4
AFAIK the Bridgestone machines were disc-valve induction and very fast for their era. I does make you wonder what they might have developed if they had carried on. A square-4 water cooled 350 with power valves would have been tasty :D

Cheers Geoff