Join Date: May 2007
Location: Merseyside, Great Britain
Use a centre punch and give a sharp tap in the centre of the screw to break the loctite. If the allen part is too chewed up to get a grip, then get a cold chisel, sharp, and strike it at 90 degrees to the screw, to get a depression to work with. Then, lean the chisel to about 45 degrees and tap the screw anti-clockwise using the top or bottom of initial cut to unscrew it, I found after about half a turn I was able to get a flat screwdriver into the cut and unscrew it manually. I tend to tap into meat of the swingarm, so as not to break off, or deform the metal tab.
Hope that makes sense, it's easier than it sounds. I had the same problem on my 2007 10 and this solved it.