Thank You.
I had been told by a motor rebuilder that the voltage wasn't the issue and that I was probably still operating in the start winding even though it tached at 5/6's (50hz vs 60 hz) of the rated motor speed (1450-1725rpm). So I disassembled the motor to ensure everything was working...
I have a small dual voltage 120/230 single phase motor that I'm trying to run on 50hz but it gets hot. If I run it at 220 or 230 60hz everything is ok. If i run it at 220 or 230 50hz it slowly increases temp. I let it get to 200 degrees before I decided it wasn't going to stop increasing temp...