Hot Fiegao motor

I have just put a new MMM in my converted zx-1 buggy after blowing the hobbywing 150amp esc and have found the esc dosent get very hot but the fiegao 8L 2075kv motor is reaching 90c or 190f with only 5min run time and it has twin 30mm fans on it.

I have tryed 11/46 and 13/46 gearing and adjusting settings on the esc but seems to have no change in temps.

I have seen other posts in forums about the feigao motors running hot but this is too hot i think and mabe a problem with the motor.

Should i stop using this motor due to i dont want it to kill my new MMM esc as it could have been the killer of my hobbywing 150amp esc.