How to wire this Buffton motor
The label on the motor should provide the most reliable information. It seems to indicate that the "low" and "high" voltages are 115 and 208-230.  For "low voltage" or 115 volt operation, it shows yellow and violet wires connected together on terminal 4 and power connected between 1 and 2. If the internal wiring is already connected, I wouldn't worry about the black and white wires connected to 1 and 2 respectively vs. 2 and 1 as marked on the label. Just connect power to terminals 1 and 2 and ground to the ground terminal.

If you have a meter or some other means to check for shorts and grounds. It would be a good idea to check that there isn't a shorted winding or a grounded winding. It appears that the full-load current should be 13.8 amps. The no-load current might be anything from 1/3 to 2/3 of that.