http://www.mototuneusa.com/break_in_secrets.htm

i still dont know if i'd trust it from an article like that on the net. but i know when we used to run in the go kart motors you would give it a fair gut ful and get it to half revs, then 3/4 revs then full revs time and time again.

ie: as old mate reckons, accel then deccel. our kart motors were always tight as and made good power too.

and my falcon was a demo model (90% sure) and it goes good now, no doubt it was flogged when it was brand new!!