Hi all, I just changed the coolant on my 99 sv650s. When I drained out the coolant, it had a small amount shiny bits of metal in it. Is this normal? Also, I noticed an unconnected two pin connector on the right hand side of the bike. It was in a rubber cover with two other connectors that were connected. What is this loose connection? I didn't see any other loose wire to plug into it. Is a diagnostic socket? thanks.