Two things that are minor but annoying things on my F. On the left side exhaust what looks to be little black specs of belt dust get stuck to the hot exhaust. Anybody else notice this? What do you do to get it off without messing up the pipe? Also what looks almost like grease but I think it is brake dust from the rear brake gets all over on the inside of the rear wheel. Have to wipe it off after every ride. Anyone else notice this? Thanks.