i have a 2003 suzuki savage (ls650). rode fine this summer in kentucky, had the shop adjust the idle when i went in for an oil change in july.

trying to ride it into work in the mornings now (55 deg, 88%humidity) but it dies on idling in traffic. in the summer it doesn't need the choke to start (in fact it won't start this way in the summer) but lately the choke works well to start.  can't get it to stay running in the morning though. seems sluggish to respond to the throttle also, sputters and dies. hard to get started again with any combination of using the choke or half choke. found the only way to get it started again was to set to prime. if it wasn't' on prime in traffic it would die, so i rode (and idled) on prime into work. i'm guessing its not good to do this often.  

suggestions welcome!! i don't' have a long commute (less than 5 miles) and no highways so it doesn't get a chance to get warmed up.

I had the same problem...converted the petcock to a Raptor

+1 to OF

I've been riding on prime for a couple years now, that's not going to hurt anything. It sounds like your bike doesn't have enough time to warm up and the idle is set too low for colder temps. I need to adjust my idle settings about once a month for the various weather conditions.