So, beautiful fall day for a ride here in New England. Sunny, in the 80's, leaves starting to show some beautiful colors. After a couple hundred miles, while descending a large hill, my son in law tells me he see's blue smoke puff out of my right side exhaust pipe. This has me a little concerned. Bike ('13 ultra) has run excellent, never beat on, just under 7K on the clock. Oil level good, no oily soot in tailpipe. Plugs also look good. Just a fluke or the beginning of a potential problem. Still got a few months left on warranty. What else might I lean towards, or just don't give it a 2nd thought.