if you don't have a dyno (most don't) to create a load on the motor, you must be careful to only put low voltage through it so that it does not over-rev and tear itself appart. Connect a voltage source, 12v is a convenient, low, safe voltage, and see if it turns. If it does, you win. If it doesn't, get a refund. You just hook it up positive terminal to the positive input line, negative terminal to the negitive line, nothing fancy for this.