djdirty Posted November 28, 2012 Share Posted November 28, 2012 Halo I got yamaha tzr125rr beldarda wanna know how do I sett the powervalve to open more and make the bike faster plzzzzz Link to comment Share on other sites More sharing options...
AndyDtr08 Posted December 5, 2012 Share Posted December 5, 2012 If the power valve system is set up there isn't much that can be done. Opening the valve further won't make the bike faster. It will restrict it as the valve will turn more and the back of the valve will start blocking the exhaust port. What kind of speed are you getting from the bike? Link to comment Share on other sites More sharing options...
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