Washed the bike today and hoped on to air dry her. When I accelerated briskly, I heard a definite tapping..sounded like valves to me but, admittedly, I'm not that familiar with TC engines. Anyway, it would start at just about 3k rpm and go away when I released the throttle. The bike was cold when I started it so I'm thinking maybe the oil hadn't gotten into the top end because after a couple of minutes of riding the noise went away. Bike has never had this noise before, what could cause the it? If it is the oil not getting to the top end, what would suddenly cause this as the bike has never made this noise before. She's an 08 'FLHTC w/Stage 1, has 30k on the clock and I have always ran full synthetic. thanx.