I'm rebuilding the motor on a Comet Cub. Pulled the rotor out and it's blue, as if it has been overheating.
It is a brushed motor, made to run on 110 VAC, but will also run on DC if needed. I have always run my Comets on 110 VAC.
What would cause this?
I've not used this Comet Cub for many, many...