01 f4i

[ubervin]

hey guys i have a 2001 f4i and when it's running at lower rpms and i gunz it the bike seems to make like a choke noise and has very little power i have a power commander on it and i don't know what up can any1 help? i can't clutch up sit downs with my stock sprocket which i should be able to it lacks power or something

what do u guys suggest i do?? and whats clean air mod all about