Slack should be 50-60mm, bike standing on sidestand, measured in the middle of the swingarm. Look in yer Owner's Manual or Service Manual.

__________________
XT rules! Make the world beautiful, get a tattoo. Nick Curran R.I.P. '77-'12

XT660Z Tenere '08 http://dallastx.smugmug.com

visit: www.hank3.com

SRV: http://www.youtube.com/watch?v=NU0MF8pwktg