I think the owners manual states to ride it easy for the first 15 miles / inital break in. It's been a couple of months since I thumbed through it though.. Thats what I did, then pin the throttle and see what she will do. I have been riding it hard ever since. 8 1/2 weeks old and 527 miles on it with no problems to speak of engine wise.
The manual only states not to run it very hard (over half throttle) and no full throttle starting until after 15 miles. I didn't run her that hard until well after 200 miles. I say on the average a good break in is 200-300 miles.