Off Another Bike?
In a 2002 Sprockets Chris & Erin Ratay wrote: “FYI: We confirmed we can use a regulator from a Honda CB400 — it is exactly the same shape, with mounting holes in exactly the same places, and 6 wires. Price for BMW part here is probably around $125, the Honda part is US$55. The only diff is the color of wiring – 4 wires are the same: 3 yellow, 1 red-white; for use on BMW, need to swap positions of the brown (earth) and green wires – Honda uses green for earth.” Note that Erin & Chris did NOT actually change to that regulator. Their problem lay elsewhere.