If you know what'll go wrong you can probably know how to fix it, right? Maybe. Anyway, this is a list of common complaints from the 2013 riders, the most prominent seem to be; spark-plugs needing replacing, electrics/wiring failing, bearings failing, and lots and lots of things rattling loose
Heated grips intermittant
Carb needed retuning
Clutch cable needed replacing
Bits falling off
Not too much to worry about then, eh?