I would say not to use the throttle until it's fired a few times. Maybe add a blip at the end, and then see what different choke positions get you in terms of idle rpm.

 

Hell, I have to go full choke for like 30-45 seconds, then back it down to half for like 2 to 3 mins, then either less than a quarter for another 30 sec or so, then off and let idle for 3 to 4 mins....then she runs great...if I skip those steps, she bucks and pisses and backfires,and is just a down right bitch!!

Don't know why I have to do all of that, and it's only the first time I start her for the day...after that even if she sits for an hour or more, there are no issues....

 

First time start on days colder than 65 I'm just like Kickinchicken.... need the choke to keep the bike idling for a minute or so, then after that, i can back it off....

J.