Finished install on my brothers 06 883 custom for a new set of bars and cables. When I removed the primary cover I noticed the oil did not look like the primary oil in my road king. I know they are two different bikes but his oil looked more like a dark gray color instead of the clearish light tan color im used to seeing. Is it cause its a sportster or should I be looking to inspect the clucth hub? Could it be rubbing the friction plates some where inside causing the oil to be gray? Or is that the normal color and Im over thinking things? Bike only has about 3500 miles so I never cracked open the primary until now.