C15 side point 1966 wiring diagram for 12v

[Tigerfeet]

Does anyone have a wiring diagram for a side point C15 amended for 12V that they could share?

I understand about joining the green/yellow and green/black wires. 

I will probably fit the Paul Goff Regulator/Rectifier A reg one.

Can I literally plug the black lead out of the reg/rectifier into the brown/white wire for the original rectifier (and connect the red to Earth) as the sum total wiring changes?  (Obviously I need 12v bulbs, coil and battery.)

What happens with the white/green wire to lighting switch 4?

[rhyatt]

I may be wrong , but if you have joined 2 of the 3 alternator wires together (to create 12volt) and then taken the 2 wires then to the new REG/REC.
then - from the reg/rec to the  earth(depending on whether you want pos or neg earth.
the output wire from the new reg/rec must go   via the ammeter , so you need to find the original wire from the output of the OLD rectifier to the bike and connect the output of the new reg rec to that
what won't work is the emergency start position on the ignition switch of course

[Tigerfeet]

As a starting point, I have found a wiring diagram that seems appropriate to my 1966 C15 and made a couple of alterations so that it matches the new Lucas wiring loom.

Next stage will be drawing in the 12v alterations.

[Tigerfeet]

Here is my finished 12v wiring diagram. I'd be grateful if anyone can spot any errors!