Please, please, please...Use the search function (little box located in the left upper corner)
There are tons of break-in techniques posted here!

Two tips though:
1. Yes, break in a full throttle and control the engine by the high speed needle
2. Too lean mean too hot/damage, too rich mean too cold/not hot enough to break in/excessive wear.

Not rocket science and nothing to be afraiid of, these new ABC/ABN engines require very little break-in and are hard to kill.