Motor Wiring Confusion

I've finally sourced all of my parts, and am in the process of building my Mendel 90 Sturdy.

However, I've run into a bit of a snafu. The Build Manual mentions Red, Blue, Green and Black wires coming from the stepper motors. My motors have a Yellow wire, instead of the black one.

The build manual only mentions the wires based on color, and not by what coil they are connected to.


Could someone please help me figure out the correct wiring? Here is a link to the motors I have acquired:
https://ultimachine.com/sites/default/files/Nema17StepperMotor.pdf

There is a picture here of the wiring of Red, Blue, Green and Black wires for comparison:
[replicatorwarehouse.com]

I guess the question I have is, how are the wires connected internally for the motors used in the build manual?

[www.zappautomation.co.uk]

---

[www.hydraraptor.blogspot.com]