I'm riding along happily today, the bike is running great, all of a sudden, I notice the bike is idling at 2000 RPM.. hmmm... odd... A minute or two later, I pull up to a stop sign, pull in the clutch and the bike stalls. Hit the starter, it starts, but unless I keep the revs up, it stalls. Well, this is going to be an interesting ride back to my dealer. I kept it running with very few stalls, until I was within a short distance to the dealership, when I noticed the bike is sputtering and the exhaust is making weird popping sounds while idling at a traffic light. I look back to see flames a foot long shooting out of my exhaust pipe!! It did look kinda cool. The dealer takes me right in, hooks up the bike to the computer and determines that the TPS (throttle potentiometer) is dead. It is quickly replaced and all 4 spark plugs which were badly fouled were also replaced and I'm back on the road again... So, TPS failure symptoms: initally, an increased idle speed stalls when in neutral, or clutch engaged hesitation while riding at cruising speed, as though there's a starvation of fuel, and lastly, shooting flames (from the unburned fuel) from your exhaust. Today, the TPS is on backorder, so one was removed from a bike on the showroom floor.