I need a little help... I ride a 2003 custom 1200XL that has about 7500 mi on it. Three weeks ago it started to have problems. After a cold start, about 5 miles out, it back fires then about a mile later stalls. The stall feels like a varor lock. I cannot start it right after the stall but If I wait for 10 - 15 minutes it starts right up and I won't have a problem for the rest of the ride (well not yet). any thoughts on the cause / fix??