my r is puking antifreeze when on the throttle hard!

[86250rrider]

im assuming this is the head gasket here. any other ideas ? anyone have this happen? and yes im using a split 3-piece with decent compression.:D

[Scott-300ex]

Leak down that sucka.

[86250rrider]

why is that so ? you think its leaking past the crank seal AND the water pump seal too. i thought it might be the cylinder pressure could be leaking at the head gasket pressurizing the cooling system. if the leak isnt too bad it wont leak the other way letting antifreeze into the cases because the cylinder pressure is far greater.it only leaks when revving pretty hard. i have my overflow tube routed in front of my hand guards so i know whats up.it comes out pretty steady under hard revs. definately not good !! i just put a new head gasket on it tonight with the lower compression dome in the cool-head with some 1211 sealer.il see tomorrow:rolleyes: