I just installed a chp143 about 2 weeks ago. Then yesterday i installed a chp clutch. If I hold the bike wide open going through the gears it runs like a raped ape untill I go to slow down and shift form third to second. The shifter sort of locks up and I cant down shift. I have to lift up the stifter again like im putting it into 4th, then I am able to down shift into second. If I just put-put through the gears there is no problem, it down shifts fine. It still is a 3 speed tranny. I kick it over and it starts right up with no hesitation. I recieved an aluminum spacer with the clutch, chp says it is so the shifter does not get pushed inside the motor. I could not fit it on my shift shaft so im not shure where it goes. Could that be causing the problem?