Oxello 9 electric scooter on engine C5065

I used 200A controller, battery lipo 22,2V 40000AH, motor c5065 ~2000 watts power.
as in my previous version, there is the problem of heating of the motor. I have solved all problems concerning the adaptation of composite parts, they fit and the plastic can be successful in this decision, but the engine heats up so much that it is impossible to touch by hand. Scooter tested in movement, very comfortable at high speed, overcomes slope of about 10 degrees without any complications due to the adj