So.. I was having terrible cold start issues.. pretty bad lag when I goosed the throttle... and super erratic idle... I had bought the carbtune pro... and decided it was time to check the carbs... GEEZE were they way off... the no 3 carb had almost zero vaccuum... the rest were all over the board... started fiddling around with the screws... got them all "near" eachother... started goosing it to get unload the carbs... fine tuned it and adjusted tyhe idle... fine tune some more... Brother... I feel like I have a new bike!!!! It cleared up all of the previous issue, still a little hard to satrt cold... but not terible. and when you hammer the throttle... the back tire breaks loose in 2nd and some times in 3rd... I recommend you sync them puppies... world of difference!