Been a way for a while but replacing my wife plug with a NGK iridium DR8EIX #6681 spark plug has made a world of difference in starting her bike.
Old plug - Choke for one minute, idle for another 2, and then hesitation for the first couple of miles untel fully warm. restarts while warm would take quite a while if it did not sit for about 5 minutes after shutting off.
New plug - Choke for about 10 seconds, idle for about 30, then ride. Temp here when made the change was 70's in the mornings, now in the low 50's and no change in starting. I belive the new plug and 93 octain gas avalible around here has a lot to do with how well it does.
Replaced the battery about a week ago and seems to fire a lot faster when starting and idles a lot smoother while cold. Battery is from Sears, a 9-b (sears part number 44356). Also added a battery tender for the winter months to keep battery from draining.
My dad alway told me growing up never to adjust you carb for elevation until you were going above 8000 feet. This is based on 1950's to 1970's carb cars and trucks, but it is only what I was taught while growing up.
Hope the info helps.
KF4EWO