I bought a Pro Circuit header pipe and a 304 factory sound silencer for my yamaha blaster and i went to crank it up and it was idling and it sounded like it was gonna blow up because it keeps reving up so much i was wonder what i would need to fix this problem i have to get a jet kit but im unsure what kind i should buy for this pipe and is that all i need to get it running at a normal idle speed? thanks for the help