Hey everyone. I have very little mechanical knowledge. My 2003 WR450 has started to have an overflow of what looks like coolant out of a tube in the front of the bike. The liquid then hits the radiator or other hot metal area and smokes. This happens after the bike sits still while running for about a minute, usually after I have been riding for ten minutes or so. Is this normal? I mean, it's water cooled so does it need to be constantly moving to avoid this? Thanks for your help!