I have a 02 gsxr 600, and the other day it overheated. Now i got a mix of oil and water\coolant (milky oil substance) in cooling system.( radiator and hoses and stuff)...there is no coolant/water in the crankcase though...some guys told me that the head gasket might be leaking...took the head off, but no sing of leak...the bike ran good when this happen and after...oh and it didnt have a thermostat....any info will be greatly appreciated...i miss my bike...thanx