my bike is a 2002 tba with 4879 miles on it. I used the Dinqua instructions for changing the jets. the jets jets are now 150 's , size determined by the Dinqua/Friar jet calculator. The pipes are Epco's. I have K&N pods on therein place of the air box. I believe the throttle position sensor is disconnected,if it is the one sort of shaped like a "t". I don't know what the air injection is, the nipples are capped,the carb head connections seem solid,I haven't messed with the D scews but I did drill out the tamper plugs so I do have access. As far as the carbs being balanced they were fine before so I don't really know how I would have unbalanced them. I have limited experience with my old Triumphs ,(they break, I fix= experience) I'm no motorcycle mechanic but I kind of know what I'm doing and can figure things out , maybe after a few tries, but mostly successful. Appreciate any more help anyone could give.