The weather here in the K.C. area has been ridiculously ideal now for a week, and looks to continue for at least another week...so I took out the 400F again today just blasting around out in the boonies...since I got the bike the idle's been okay but not quite turbine smooth...the thing ran great to begin with, even better after I synched the carbs, I was just blipping the throttle periodically at long lights as it would struggle a bit...I decided to mess with the mixture screws today. They still had the black plastic caps on them which would limit the turn with a little knob on the side. I took them off...I turned the screws out which didnt help, then turned them in about 3/4 of a turn on all four cyls...right away as I did each it just smoothed up alot...had to turn the idle screw out some as rpms climbed to 1600...brought it down to 1250 and just tweaked each carb one lat time...Now it idles like a Lexus V8...I took it for a little shake down run and it feels even better now...It was always okay on a wide open 3 gear redline run...but it was just a touch off on some random throttle settings and situations...plus a little hot rod popping from downshifts or overrun...now the thing is running like it's fuel injected...anywhere anytime...just VROOOOOOOMMMM! such a super sweet smooth thing it is...and the sound...since you kind of have to twist it to move smartly...now just every run from a stop or light is like this sublime old school busy but serious ripping sound...where I used to feel it sounded best at redline...now...6,7,8 grand, it's all the same...maybe now I'll take it a little easier on the old girl...GO Lil Red!!!