power valves?

Joined
May 7, 2000
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#1
I have a 97 Cr 125 with the honda HPP system. Somtimes my bike will just lift the front wheel off the ground with low end. Then after a little reving th low end goes away like the power valves are stuck. I have removed and cleaned them but it still isnt working right. I have no idea what to do . Thank you for your help.:(