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Righthand switch wiring

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Dave B:
Can anybody help?
I am in the process off rewiring front end of 1975 CB750FO to existing wiring harness.
I have the wiring diagram for this bike.
I have fitted a new righthand switch (supplied by David Silver) but some of the colours on the new switch don't correspond
to the wiring diagram or colour match the existing harness.
The starter button works(black and yellow/red).
I have connected the Black and red to the matching black and red on the existing harness.
I am left with Black and blue wire?
And two black wires with white stripe.One has a male bullet connection and the other has a female bullet connection.
Be very grateful for any help.
cheers Dave.

AshimotoK0:
From memory and not that familiar with 750F The black/ white is the positive feed to both ignition coils (via the kill switch) and Black/red is the headlamp feed wire to the fusebox.

Dave B:
Thank you
Do you think the 2nd black/white wire is the live feed to the kill switch

AshimotoK0:
as I say not an expert on the 750F but there should be a black/white wire that goes to the kill switch and then at the multi-bullet connector a black/white wire which runs to each coil. Basically the kill switch isolates the 12v feed to the coils when it is not in the central position. AFAIK the black/white wire doesn't connect anywhere else  on the bike ... but a 750F expert  on here may chip in and tell me otherwise  ;)

Bryanj:
If its a pattern switch(probably) the colours are frequently wrong. Try testing the continuity between the two black/ white wires with the kill switch in both positions, if they connect when switch is in run and disconnect when in stop connect one to the black/white in loom and the other to a black in loom if not come back to me for further tests.

You will need to find out where the black/blue goes in the switch.
Long distance electrical fault finding is a bugger

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