motor seized

[321racer]

alright guys...
i was practicing today and my bike bogged down and just shut off....
the kickstarter wont move at all...
i took the spark plug out and tried kicking it over to see if the head gasket went and the antifreeze leaked into the cylinder and hydrolocked it but it still wont move.
im assuming its the bottom end?
anyone know of anything else it could be before i split the cases?

[Aceman]

Pull your topend off. It sounds like your piston is siezed in the bore. Then I would go over your bottom end thoroughly to make sure you didn't ruin anything else.