Was trying to change fork seals on my 99 yz400 myself today and came to screeching halt when I could not remove the "bottom cap" to the fork. I know that's not the right term for it but its the piece that the rubber insert goes into to adjust the rebound or whatever the gold adjuster is on the very bottom of the fork. its seems to be like a 14mm allen but when I tried to unscrew it all it did was turn and turn and turn, it got easier to turn but never came out. is it stripped? the manual says use special tool i think but dont see why, and no one talks about using one on this forum. do i need a special tool to get this out and ultimately get the fork apart, am i missing something? thanks a lot!!