update: I have change throttle cable to a new one, still not right. I have it doing this now, Idles good when started with choke on so I turn the choke off and ride it for a couple blocks then if I squeeze the clutch lever it revs real high.So I'm stumped still both throttle cables do the same results. I also tried the tape and then grease around the intake at the welds no such luck there either. I also have o ring it the nt carb too and seal all at the intake to engine with new gasket. I'm just wondering why it does it when the engine warms up I guess?