I just purchased a 2012 Diavel with 900 miles on it and for the most part LOVE it! But I have one MAJOR complaint, Fueling! From idle until approximately 3800rpm the fueling is HORRIBLE!!! Sometimes it takes longer than it should to start and sometimes it stalls while idling. But riding smooth below 4000 rpm is impossible!! Any thoughts?????I did already order a shift tech pipe, I hope that helps??? Make it worse??? HELP!