I have a mobel home furnace blower motor that is a 208-230 volts I want the motor to run on a 120 if I can , it has four wires red,black orange and brown thank you

Unfornately that motor is rated only for 208 /230 volts. (actually up to 240 which is standard now) Motors that can run on multi-voltages have that clearly marked on the label affixed to the motor. Usually those motors are used for electric heat and heat pumps.

I have a mobel home furnace blower motor that is a 208-230 volts I want to change the wiring diagram so it will run ona 110 or120 circuit, it has four wires red,black orange and brown thank you

You will need to replace that motor with one for 115 volts. If the furnace was originally designed for a 220 volt motor that is what should be in it to maintain its listing.