Cold start stalling

[Chris216]

GG, the bike is a 2020 1250 with 7500 mi, I purchased it new in Feb 2020. Yes the bike starts right up and then stalls and takes some playing around with the throttle to keep it running. Bike has a fresh battery and lives on a battery tender in the winter. No codes on GS911. Never had this problem before last fall (thought the new battery would cure it, but no).
Lee, warranty ran out 6 days ago  , plus nearest dealer is 300 miles away...
Thanks for the replies
Chris