Thank Rbm, the wiring you share are right ?
I'm passing on information that might be helpful to you but I can't vouch for the accuracy of the information. I would suggest that you contact the people who posted in that thread. One of them, Ardinos, has an open offer to help anyone with installing a M-unit on the K-bike. I would highly encourage you to contact him.
What I can see from the diagram, it is accurate for a K75. The tricky areas are load shed relay (LSR) and Fuel Injection relay, and how to integrate the M-unit with the FI system.