How many quarts of oil for 01r6?

I called dealer and they told me 3 quarts with a filter change. So thats what I put it a few days ago. Just went to check it and oil started pouring out of my dipstick when I unscrewed it. Obviously that is too much oil. Also I let it drain quite a while before I put the plug back in so I know it was mostly all out. ALSO this i my first oil change for the bike and the old oil from the previos owner was pretty dirty. Should I change it in a few weeks since the old oil was so dirty or does it not matter