I own 3 OS AX engines and all I did was run 2 tanks thru them in the airplane on the ground as the instructions indicate... then flew a bit rich for 6 flights and was gold..This engine is great..never dies on me..runs strong..
ORIGINAL: bryris
I just bought an OS .46 AX (Wanted the discontinued FX, but decided its OK to get the AX). I don't know anything about breaking in engines. Will the engine come with break-in instructions? Can I break it in while its strapped to the plane, just anchoring the plane down? Or do I need a seaprate engine mount to run it on the bench?