I have a 20012 street glide 7000 miles. Recently on start up sounds like nuts & bolts banging around in primary. Doesn't do it all the time & lasts between ten & twenty sec. Dealer says that it's fairly normal. My point is if it didn't do it in 7000 miles why would it do it now. Dealer says if it doesn't do it when they have it there is nothing they can do. Any tips or suggestions would be greatly appreciated. Thanx in advance.