Boyer Brandsen Mark Four

I have used two of the Pazon ignitions on my 1974 Commando. Both have had power cutout issues. So I bought the Boyer Bransden Mark 4 ignition. For installation on the '74 Commando 850. I am having a problem with finding the exact simple wiring diagram for my bike. The box indicates that the Norton motorcycle is compatible.
Maybe my brain has a short circuit. So, I am seeing white wire to ground, black to -coil and red to black across, then positive coil to ignition. Correct? So simple, yet I want to get it right first time. Thanks guys. (and gals).

Assuming your bike is still positive earth/ground then white is negative so does not connect to ground but to white/yellow from the kill button or white/blue that connects to white/yellow or white if you bypass the kill button. Red is ground. If its wired negative ground then yes white is ground.
Wiring diagram here.
https://www.boyerbransden.com/pdf/KIT00053.pdf