Everytime I take her for a spin it struggles to stay at a constant RPM. For example; when I get on the freeway and try to stay at a steady speed it lurches on me and the RPMs jump around. I recently purchased a power commander as well but I did not get the disc for it, can I find the maps and stuff I need online? Also, I know nothing about fuel injection cause this is my first fuely bike and I am not very tech savvy. Any help fellas? Thanks..