In almost three years this has only happened twice so I'm not terribly concerned. Just curious. I turn on the main switch, turn on the run-off switch and hit the start button. The bike fires up but is running on just one cylinder, barely. I turn off the main switch, let it sit a few seconds, turn it back on and she fires right up and runs fine. Like I said earlier it did this once at a gas station (engine warm) about two years ago. It did it again in the driveway (engine cold) this morning. Any ideas?