i tried to remove my one from my trackbike
the hammer trick didn't work so got iceman to take it off for me
i watched him do it and it was quite simple. on mine (GSXR 750Y) he pulled all the wires out and there were just two spliced into the loom. you cut them off and re solder the wires of the loom back together, then unplug it.
i must admit it looked very complicated but after watching it done it really is a piece of p**s