Another possibility could be you say the're new bars, hopefully there isn't a bend in the bars where the throttle assembly is, just a thought to cross off the list...

05 SM Neon Blue/Black. Thunder Bike Cams & Pipes & Flowed Head. AI&Snork removed, Airbox Mods, 135mains, 42/17T, 140x80x17" TBS Front Wheel