About a week after getting a tune up on my 2011 Vulcan 900 Classic LT I noticed that it would take from 3 to 9 attempts before it actually started. Although the weather has been cool to cold during the times that I started it, this has been the first time that I have experienced this problem. The colder it is (e.g 35 degrees) the longer it takes to start. However, a few days ago the temperature was about 48 degrees and it took about 9 attempts before it finally started. Once it does start I noticed that it smells like it’s burning rich. I also notice that it does not go to a fast idle. It starts idling slow and will eventually start its fast idle cycle. After it starts, I don’t have any other issues starting it again, meaning, if I go somewhere and stop for a break, it will start right up when I'm ready to go. I ride all year and I have not experienced this issue until the last 2-3 weeks. I purchased the bike last January with 0 miles. It currently has 5,444 miles. Any ideas what could be causing this problem?