Bike runs like poop :(

[nemo25]

I have a 06 LTr 450r that I bought with a 470cc bore kit and cams otherwise all stock. It use to have a cherry bomb but it was taken off. The motor dosent seem to run even it idles rought and it feels kinda jumpy. Could this be becuase the cherry bomb was taken off or is the motor f-ed?

[IdahoMX]

You need the cherry bomob installed and you really need a full pipe for the big bore to run. with the mods listed plus these you need a pims, The stock fuel management cant keep up with all of it