Originally Posted by RolandGarros
Its really strange that your ESC and motors burn. I do not use the stock ESC myself, I use DJI ESC Opto 30A.
One thing you can check is that the motor mounting bolt does not interfere and shorten the windings of your motors. Check the link below and the discussion tab at the bottom of this page and you will see one guy had this problem which of course can lead to both motor and ESC failures.
Are you using the DJI esc's with the Bumble Bee FC? I did not think the DJI's worked with the FC.