I assume that is simply for starting the engine. What you do after that depends on what you are doing. If running in adjust the needle valve to a leanish setting, as you want the piston / liner to get up to temperature quickly, don't run it rich as you would for an old style engine, otherwise you will have a very tight engine and you will be putting undue strain on it. A lot of people just put it in a plane and go fly. The only drawback is that the engine will run in quickly and hence needle settings will vary (or your rpm if you don't touch the needle between flights). It should settle down after 10 or 15 flights. you will know when you have it run in, because the fuel consumption drops significantly at that stage,
Regards,
Andrew.