A clunk normally means the caliper carrier keyway is above the key on the swingarm instead of being keyed in. See if the caliper can be lifted upward with the carrier rotating around the rear axle. If it can, it's on wrongly.

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Pat- 2007 DL650A was ridden to all 48 contiguous states. 2012 DL650A is just getting started.
Nicknames for posting ease on my part, Vee = all DL1000s. Wee = 2004-2011 DL650s. Glee = 2012+ DL650s