Posted June 9, 201113 yr Moderator Just thinking aloud here but i remember when these motors first appeared in 125's and the valve was pegged with carb restrictions and a bloody great washer in the pipe to give 12hp. An hours work and you were on a 20hp rocket. The new engines don't seem nearly so much fun, like the latest stuff has its powervalves operate and they just don't go. The pipe restriction is a little bit. I recon the barrel and PV have been toned down. Opinions?
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