Mega Motor Overheating Issues

[nuz69]

Your timing has to be between 15 and 20 for a 6 poles motor. But the motor is probably too small anyway ...
Try a 1518 1800kV or 1515 2200kV, the 1512 (1200Watts) will limit your gearing, and will be less efficient than a stronger Castle (1515 or 1518 1500W or 1700W).
Its better to have a motor overpowerull than underpowerfull, to avoid heating issues, don't forget that motor efficiency falls with temperature !