Just got some great advice the other night here, now my bike runs great, except it doesn't start worth a darn. Now, I currently do not know what ANY of the jetting is (I know, I'm no help to myself or you). Anyway thanks and here's the symptoms. It's about 50 degrees, 600 ft elevation, I know that much. Has WB R4 pipe, ran like crap. Got advice on setting the pilot screw with the very handy Sears $2 tool. Now it rips, it used to BLUBBER at low rpm, fine on top, now great everywhere except starting. If I use choke, I might as well forget it. It will start in non-choke mode, but won't get running because it's too cold to run without choke. Eventually if I keep kicking (great exercise btw), it will eventually 'catch' and with some judicious manipulation of the throttle, I can get it going and then it's ok running and starting once it's warm. I guess the choke making it a non-starter means something's too rich? Also, if I have the idle set high, does that cause problems starting? THANKS GUYS, this site is the best. I promise I will learn my jetting specs. What specs should I know? This is my guess. Main jet Pilot jet Pilot screw setting (# turns out counterclockwise?) Needle clip position? Needle type/part #? Thanks again!