i hate to bring this up - but, outboard engines are ringed engines - a tt 46 pro is not - its a taper fit. Running it too rich will significantly reduce its power output - as the liner doesn't get up to temp, and it wears the piston to a looser fit than it should have. The link posted above - http://spadworld.net/forum/viewtopic.php?t=11555 is considered the standard way to break in abc or abn engines - and works well. It will have considerably more power than one broke in way rich.