So I just bought a new to me 2007 vtx 1300 with Vance and Hines exhaust one owner with 20k miles. Absolutely love the bike so far as my previous bike was an 05 boulevard c50. I am having issues with cold start and stumble off of idle. I have read lots of post on here and so far I have changed the plugs and (I do not use the choke), Pulled the bowl off of the carb and it was pretty clean but I went ahead and removed the jets and cleaned them thoroughly and set the A/F screw at 2 1/4 turns, and checked the accelerator pump. The previous owner has never had any carb work done. I am in northeast Alabama and right now the morning temps are lower 30s to mid 40s. I can give the throttle a couple twist and get the bike to fire up and idle but it seems to take a really long time before I can give it throttle without it dying. Once I can give it throttle it stumbles off of idle. Once the bike has ran for about 30 minutes or so it seems to run and ride great. But can’t let the bike sit and run for 30 minutes before I ride it every morning. The biggest problem is when I leave my house and get on the road my first stop is on a pretty steep hill and with it stumbling off idle it makes it very difficult to take off across 4 lanes of traffic.