RE: how to know when engine needs rebuild?
Yes and No Chris_rc. i broke the engine in correct but i was on a learning curve as i tunned it.(this is my first rc). so i learned alot while doing the tunning but may have ran it alot leaner at times then i should have. It has about a gallon thru it and has no power now, and i have no clue on what temps i was running at. but just so you know i have learned from my mistakes and bought a temp gun for my other (savage ) rc. so i dont ruin it.