36 degrees out tonight and on my way home, after about 25 miles of interstate riding. The motor on my 2005 S50 started to hesitate and sputter during slow speed manuvers. It even backfired a few times during the last 5 miles from the interstate to the house. The bike has almost 5,000 miles on it and has not had any problems until now. I filled the bike up with 87 octane gas right after leaving work and turned off the choke completely before getting onto the highway. I would take it to the dealership, but they are closed on Sunday and I work all day Monday. I have another ride I'm committed to on Tuesday so any advice on this would be appreciated. I've worked on plenty of cars but this is my first bike.