How many of you have had this problem! I had Dynojet kit installed on my 2k 600 woth Hindle bolt on. I now have a bad bog from 1-3k RPM... Its not as noticable when the engine is cold. But when I have a passenger on the back Ive got to rev it to 6k rpm just to take of properly otherwize the bike just bogs until I get past 3k RPM The mechanic put in bigger pilots still the same problem. I have heard this is common with 99-00 Gsx-r 600. Has anyone worked thru this problem? If so what did you do to solve it!