Been rebuilding my dt125re and my powervalve is not working as it should. I have been diagnosing the problem and have come to the conclusion that the cdi just aint right. The motor for the ypvs works, I've bench tested it with a 12v power supply and a 6 v power supply. The valve itself can be moved, not extremely easily but is moving. When I turn the ignition on it should do a cleaning cycle, which it doesn't, it doesn't move when the engine is being revved either, any help?