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Old 08-27-2002 | 01:51 AM
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ysman-RCU
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From: Lower Alabama
Default Y.S. Piston Gas Port Modification
Dave,

Thanks for explaining GPM. I have always marveled
the YS engine since the original F-120 some 23 years ago.
By no means am I an expert but a true enthusiast of the
design. I know YAMADA MFG. prototyped a 120 twin just
before the release of the F-120. Do you think they might have
an answer to the 80cc &up Gassers?
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