Kx250f problem HELP

[kawaski 250f]

I have a 2008 kx250f that is blowing anti-freeze threw the overflow.. Which meaning the coolent is building pressure In the rad. Just got head gasket done, still doing it, checked impeller and that seems to spin fine when being kicked over. Have no clue what it could be, anyone know? Thanks.

[morphrider]

Would a bad radiator cap also be a contributing factor?

[kawaski 250f]

I took off my rad cap and tried the one off my quad which is also a 1.1.. Still leaked, my bike randomly started leaking so i don't think that is the issue

[Racer24]

if pressure is building up in the radiator that will usually be a result of a bad head gasket..