here are the results of the test
Black - Red = continuity (0 ohms) 0
Black - Yellow = open (infinity) 1
Black - Green = open 1
Now try
Green - Red open 1
Green - Yellow continuity 0
Yellow - Red open 1
You might try the continuity test backwards in case there is a diode preventing a complete circuit.
Red - Black continuity 0
Red - Green open 1
Red - Yellow open 1
Yellow - Black open 1
Yellow - Green continuity 0
Green - Black open 1
power to the black red combination runs the motor. power to the green and yellow wires just makes sparks.