I ride a 2000fxr4 with a 80" evolution,upon restarting bike after a short 6 mile ride,heard noise and immediately shut off and thought what was that? fired briefly once more just to confirm if noise was coming from engine,and it was shut off and trailered home.Drained engine oil,no metal that I could see.Removed timesaver pushrods and cam nose cone to find front exhaust lifter roller bearing has gone bad,and some metal in cam chest cavity. Question? would be any benefit to pour oil through resevior,hopefully to flush out oil pump and an other related areas,also should the oil pump be removed and inspected....Any help in this matter would be Greatly Appreciated!!!