Well, you've probably read about my experience already at http://www.peachparts.com/shopforum/showthread.php?t=109101. Depending on the plug's location, my method may not work on all of them. I would probably give them a little more torque and keep my fingers crossed. I feel that they are either going to come out or break off regardless of what you try. If they are the original plugs, then I would bet on them coming out in one piece. If they are replacement plugs, then your odds might decrease if the replacement plugs weren't fully seated in the prechamber.

Good luck and let us know what happens.

Len