10-15 seconds at max RPM then turn 1/2 turn rich for 2 or 3 minutes, then lean to max RPM 10 to 15 seconds, then 1/2 turn rich for 2 or 3 minutes keep repeating. All the time at full throttle. Run 2 tanks of fuel and you are done. It takes about 10 minutes per tank.
After break in always run an airplane engine a little rich, about 200 to 300 RPMs on the rich side from max RPM or about 1/8 turn of the needle valve.