There is a full "type" difference between the K6 and K7 wiring. The K6 is like the K5 and K4, while the K7 is closer to the F2. The K7 uses an Ignition key in the instrument cluster while the K6 (and earlier) uses an Ignition key down under the front left side of the fuel tank.
The F0/1 version (with the keyswitch in the instruments and the warning lights next to the key) uses a small triangular plastic box under the tank to hold some extra wires (horn, missing keyswitch, 2 others) that wouldn't fit into the smaller headlight bucket, mounted where the earlier K0-K6 had that Ignition key (this is the odd #12 part in modern wiring harness depictions, like at CMSNL).
The F2/3 wiring is different from the F0/1 wiring, missing the little triangular plastic box but having the keyswitch and warning lights up in the instruments like the F0/1. The K7/8 followed the F2/3 concept, and they both use the -405- series wiring harness.
