I recently took delivery of a Harley Duece. I rode the bike for about 500 miles before checking the Primary Oil level. When I did, I couldn't see any oil in the reservoir so added what amounted to 28 ounce of oil. Could I have overfilled my Primary Crankcase by adding this much additional oil. This brought the oil level to the very bottom of the clutch. Does this mean my bike was delivered to me without any oil in the Primary chamber or did I overfill it?