but what happens when you lean it out and heat it up?? is it going to have the same power as another engine that went through a proper break-in??

and i agree with Dar, a lot of sport engines are very loose when new and probably wouldn't suffer at all with this practice but i doubt you could get away with it on one of the really tight engines. the fact that everything went smoothly with no sudden seizures says it was loose enough not to matter...

i have had plenty of abc/abn engines change their running clearances/characteristics when playing with different fuels/props/pipes. the only one that never changes no matter what abuse it gets is the little enya.11cx with aac cylinder/piston


dave