Topic: wiring diagnosis needed. No headlight, tail light or idiot lights SOLVED!

[greenjeans]

1973 CB750K

Brand new Parts-N-More harness and a "new to me" RH switch.  As of now, the starter button works and inside the switch looks normal.   I do not have a tail light or lights when the switch it turned on.   Turnsignals function properly.
Brake lights work as they should.    I am not getting any headlight (H&L) or tail light when switched on.
I am not getting any of the idiot lights either.  I rebuilt the sub-harness for the idiot lights so I know it works.  I also substituted a know good idiot light harness and that did not work either.   I have read that sometimes the starter button switch is a possible culprit.   To me it looks fine.   It is very clean - no broken wires internally that I can see.
I am getting continuity from the yellow/red wire at the switch to the bucket.  I am also getting continuity from the green/red wire at the switch to the bucket.    However, it seems that those 2 wires may be touching somewhere ?   I'm not getting full continuity between them, but the needle on my ohmmeter does move about half way.

[DH]

R.h. switch check..Disconnect all 6 wires. SHOULD be continuity during each step.
1. check for continuity between  brn/wht and single blk  (there are 2, only 1 should show continuity with hHEADLITE switch ON)
2. check for continuity between blk/wht wire and the OTHER remaining blk wire with the KILL switch in RUN position.
3. check for continuity between yel/red wire and grn/red when START button is pressed.

number 3 probably ok, as the start button is working?

check both fuses just for $hi%s and grins.


Try going from lo to hi beam, and wiggle the thumbswitch. Mine did this once, and had the same symptoms, except  the idiot lites, i had to recondition the lh switch. Also if you are missing any voltage readings anywhere in the circuit, check your ignition switch .
TL1-TL2 jumped and BATT-IGN jumped will turn the lights on if the rest of the circuits are ok. And of course, WIRED correctly

[greenjeans]

update:

Cleaned RH switch - did the continuity checks that DH suggested.  Checks out OK.
Replaced the key switch with a known good switch.  Same results.
All fuses are good - continuity between ends of the fuses installed.
I am still getting lights to the gauges.

[greenjeans]

SOLVED.   Uuuugggh.   It wouldn't be so bad if this exact thing hadn't happened to me twice before.

In the Honda wiring diagram, it shows the brown/red wire coming from the fuse box tie into the brown/white wire in the harness.  In reality, that is not the case.  The brown/red wire ends up in the headlight bucket.  All I needed to do was make a jump wire that goes from the brown/red to the brown/white in the bucket. 

uuuuuuuugh.

[DH]

I think that jumper gets us all