Topic: Extra wires in headlight bucket???

[Magpie]

Hi gang! It's getting close to being ready to unveil, a candy ruby red CB750, mostly 1971. The wiring harnes is from '69 to '71 I believe. It came in a box with a bunch of other treasures. I have it all wired but have an extra black wire and an extra brown wire in the headlight bucket. Everything works although I haven't tried to start the motor. It does turn over on the starter motor. All lights are working. Any ideas what these are for or are they just extras like the green one near the battery?
A rant! Brand new exhaust pipes. #1 pipe's mounts for the heat shield are out by 1/2 a screw diameter, #4 pipe has a buggered hole/threads for the heat shield screw. I just took these out of the boxes. S**t. I'll call the dealer in the morning but I've had the pipes waiting for at least 6 months.
Cliff.

[markb]

I have two wiring harnesses from K0's, one has the extra brown and black wires you describe.  Other than that they are identical.  The black is an extra ground and the brown is an extra wire from the ignition switch that goes to the taillight (for kind of a parking light?).  I don't think anything was connected to either one and neither one shows up on my wiring diagram.  The one with extra wires has a number 32100-300-050 and the other one is a -040.  The -050 must be a later version that anticipated adding accesories.  Any other opinions?

[Magpie]

Thanks for the quick reply, it's been driving my crazy. I had to rebuild the harness and thought I missed something. I don't have any options added to the bike. It's a real project bike built mostly from cleaning out a guy's basement of K parts, a bare frame and a '70 motor I have rebuilt. I'll never do it this way again. It's way to expensive. Having said that, I was given a '70 CB750 awhile ago that will need a ton of work and money. These bikes are really addictive.
Cheers,
Cliff.

[Bodi]

Brown wire: some markets required a front parking light, just an small extra bulb in an extra socket that stuck in the headlight reflector. This gives a feeble white light from the front to do the same as the rear parking light, whatever that is... I never use it, personally. Some Cibie halogen replacement units for motorcycles come with this small socket and bulb. The extra black... probably for the speed alert speedometer needed for Japan domestic models. These have a bright light either in the speedo or elsewhere in plain sight that informs you you're speeding (illuminated above 100 km/h maybe?).