Hey all. I had another thread going talking about the coolant dripping out, hitting the radiator and causing steam/smoke. I have since realized that I have no coolant overflow resevoir. I guess I will see about buying one if anyone has any advice there... But, in the meantime, when my bike is completely cold and I remove the radiator cap I can't see any coolant at all. 1)Shouldn't it be filled to the top when cool? 2)To take care of this, is it true that I can't just add more? 3)If so, is there a video out there or something that can walk me through completely how to do this? 4)What coolant would you all suggest for a 2003 WR 450? Thanks so much!!!