I have a Blade SR Helicopter that crashed fairly bad today. I completely bent the shaft on the tail motor along with bending the main shaft and busting the main gear.I powered up the engine after I crashed it to make sure everything electronicly worked ok. The servos seemed to move fine and the main motor seemed to work fine. However,Ismelt a burning smell after powering it up. A crash wouldnt have messed up the main motor would it? Or what could this smell me coming from.