just installed the red today, a bit of a bitch but I took care of it myself. Not to sure on the tunnig, No JD kit yet. new bike never riden, getting ready for sunday. seemed to bog and pop once at throttle rap. elevation in my area is aprx. 200-500' a.s.l. what should i do? temp was aprx. 50deg.f in the garage this evening. no matter how mutch i turn the screw out it pretty much did the same thing. of course all the way in shuts down, HELP!