Problem started at 800 miles. Engine light came on, then would not restart afer refueling. The bike acts like it is a dead battery, but starts instantly when it is bump started. At one point entire display went out. Happened three times today during 300 mile ride. Only addition to electrical system are PIAA 1100x driving lights. Today when engine light came on, it went off after turnig off PIAA's. Lights are installed as per factory instructions, with hot switch lead connected to tail light. Any thoughts as to what this could be?