my gpx600r starts throwing out coolant when it gets hot ?

as ghost says check the thermostat and obviously the waterpump but the most likeley casue is going to be the head gasket im afraid,i bet it chucks the water out after a ride and wehn you park it up it runs out of the overflow pipe from the header tank?i think the header tank is in the belly pan on this model isnt it ?

adam bike doctor(of milton keynes motorcycle centre)
February 2011

it may be the thermostat gone,

GHOST
February 2011