Went out and washed my bike today, when drying, I noticed that my coolant level was low (down to the bottom of the reserve tank). I just went over 700 miles, and I know when I bought it, it was nice and level between full and add. Is this normal for the ZX10r? I've never had a bike thats done this before. No leaks detected or anti freeze residue seen on the bike or floor of my garage.