Well, yesterday, was out riding all day long without any issue, then had to switch over to the reserve, and right as I was pulling into the gas station to fill up....not even 10 miles into the reserve, it started to sputter at me, I thought it might just be a bit lower on the reserve than I thought. Didnt think too much into it. But even after filling up and turning the fuel back to the "ON" position, it seemed like it started idling a lot lower than normal. Sounded like it went from the regular idle(assuming it was around 800 rpm) down all the way to what seems like maybe 3-400 rpm. And when I am coasting on deceleration I hear a lot of popping coming from the pipes. In the 3 years the pipes have been on the bike, Ive never had that. When lightly twisting the throtle, it seems like it wants to miss a little bit, but at full throtle and cruising speeds, runs completely normal. Any ideas?