Rite i had this problem to, the top of the headset cup there like a flat metal seal wich is covering the bearings, get a screw driver and when the forks are out just place the screw driver in the cup were the metal seal sits there is a little recess were you can place the screw driver and Nock the screw driver up and keep moving round the headset cup you will see it starts to pop out and eventually it does (ps really hard to explain :$ ) sorry