Topic: 75 CB750K new Parts N More harness question

[zabzob]

I have a '75 CB750K, and I'm having some trouble with wiring up a new harness that I bought from Parts N More. I've been working with a Clymer wiring diagram on this. From the diagram, it looks like I should have one brown/red wire coming out at the headlight. Instead, I have two. One of them is marked at the headlight end with a white wrapping and what look like black pen marks. I believe the other end of this goes to the fusebox, which also has brown/red wire with black marks on it. I hooked this up to the headlight dimmer switch.

The other brown/red wire is a mystery. I do have a brown/white wire left over at the headlight as well. The diagram shows a brown/white to brown/red connection, though it looks like it should be a soldered internal connection. Am I supposed to loop it around myself? The original harness did come with a brown/red male to male connector for a loop around, but I don't know what it was connected to or if it's supposed to be there. PO did a lot of electrical stuff to hook up a Vetter fairing, so I removed it all thinking that the new harness and diagram would make it all clear.

I've also got a mystery extra solid brown wire...

Any input would be appreciated.

[bollingball]

Extra brown wire only used overseas They have some kind of parking light in the bucket for that wire.I will get the print out later for the other stuff.

[greenjeans]

watching this one.   Having the exact same problem (bike was wired for a fairing) 

My harness (which I think to be original) also has an extra brown/white wire.   I think that my harness has the "loop around" connection but it was
from the brown/red to a brown - I think ?

I'll take another look when I get home - I was just messing with it last night but don't really remember.

Was thinking of buying a new parts-n-more harness just to give me some piece of mind.

This may or may not help:  http://www.oregonmotorcycleparts.com/Diagrams/CB750k37.jpg

doesn't really address our issue, but it's a little easier to follow than the black and white ones

[zabzob]

Hey greenjeans, did you get a chance to look at that loop around on your harness? Anybody else have this going on?

[greenjeans]

Got sidetracked last night - I'll got out today and take a look after work

[zabzob]

You know what? I looked at mine again, and I've also got an extra... teal? wire coming out near the coils.

[greenjeans]

The teal one may be light green -  possibly horn ?

I have an extra brown wire.

I have a brown/red wire that has a short male/male wire (only 1.5" - looks factory)  that connects to a brown white - same as you describe.

seems strange - but so far everything is working

[zabzob]

Excellent! Thanks for the reply. Only thing to do now is put some oil in and fire it up. I'll let you know how it goes.

[zabzob]

Okay, all the electrical stuff is working. Instrument lights, brake lights, turn signals, starter. No spark though. I'll have to do some forum searching and some multimetering... I tried to duplicate a strange splice that the PO had made for the electronic ignition unit, which could be the culprit.