Does anyone know if the drive sprocket can be removed/replaced from MY1020 motors easily? I'd like to know before I buy it and the seller hasn't answered my questions about it. I'm replacing the existing sprocket with one that will fit a bigger chain.
They are dual-d-bore sprockets held on with a hex nut and lock washer. Depending on the derivative model you get, the size of the dual-d-bore will vary.
To change the sprocket you basically have to machine and weld one onto the sprocket that came with the motor.