Hi steven, don't worry because it's no big deal, in this situation you can't hook it up "wrong", the possible results are it'll either work, not work, or work but hi and lo beam are swapped; but nothing will be harmed no matter how you hook it up. It would even be perfectly safe to just try all possible combinations until you figure it out through trial and error.
But my guess is that black is ground, red is low beam and blue is high beam. I would plug black into one of the green receptacles inside the headlight area, red to the low-beam plug (I think on the bike it's colored white, and should be female since it's a power output) and blue to the blue hi-beam plug. If you want the hi-beam light on the dash to work then you'll need to figure out a way to plug it's blue wire into the blue plug as well (perhaps you could cut the blue double-female connector off the old lamp and solder it onto the new one or onto the bike somewhere).
If you wish, you can test beforehand with a bench power supply or other source of 6V (such as a battery from the bike). Using two jumper wires, one clipped to positive and the other to negative you can try applying power to the terminals to verify the pinout. As long as you are sure whatever you use is really a 6V supply and not 12V etc this will also not carry any chance of harming anything.
--- In Honda-C70@yahoogroups.com, "Donald Petersen" <dpeter1946@...> wrote:
>
> Are you sure it's a 6 volt headlight?
>
> E-Bay sellers may (or may not) know what they are selling you. But as long as your credit card/Paypal clears they are happy.
>
> It should be a Sealed Beam unit, probably with color matched wiring that plug and plays for you. You can check out the correct light and wiring diagrams here in the files section or buy the correct 6 volt light (or a version with replaceable bulbs) at DR ATV, the links are on this web site.
>
> Replacing all the little instrument bulbs is a good idea too. I had the same issue with my '81 when I replaced the headlight. Once you have it out just replace them all, just in case.
>
> There are excellent wiring diagrams in the files section, including the color coding.
>
> --- In Honda-C70@yahoogroups.com, "stevengoughzx10r" <stevengoughzx10r@> wrote:
> >
> > I just picked up a 1981 c70 passport for my girlfreind for 450 bucks, it ran fine, electric start works most of the time, all the dash lights were burned out, i replaced those, new exhaust, battery, seat cover and the thing looks great, only part that is givin me trouble is the head light i ordered off of ebay, i took the old head light off and can see the sealed bulb is burned out, ive looked over this forum and cant find the help i need so i figured id i ask. The head lamp i took off was the original stanley model, the one i got none of the color wires matched, tried makin sense of the wiring diagram ive found on other sites but it just doesn't make sense. On the new lamp i got there is a red, black and blue wires. On the old lamp there is blue, yellow and white. And on the old lamp there is a blue wire that has a connection for two wires and on the new lamp there is only one. Im scared to hook it up wrong. And stupid me didn't make sure i knew what was what when i was unplugging things in there, i must have been to excited or something. I hope somebody can help me hook this light up as this is the last thing i need to do on a great little. Thanks
> >
>
1970-73 C70 Honda Service Manual: http://tinyurl.com/6ebwtw
1970-73 C70 Troubleshooting Guide:
http://tinyurl.com/6ebwtw (scroll to sec.7.1 page 101.jpg)
1980-83 C70 Honda Service Manual: http://tinyurl.com/hu42c
1980-81 C70 Troubleshooting Guide:
http://tinyurl.com/hu42c (scroll to sec.18-1 page 170.jpg)
1982-83 C70 Troubleshooting Guide:
http://tinyurl.com/hu42c (scroll to sec. 20-28 page 205.jpg)
1980-81 C70 Maintenance Schedule: http://tinyurl.com/z4zn6
1982-83 C70 Maintenance Schedule: http://tinyurl.com/hw35c
More resources for C70 Passports and Cubs:
http://www.shlaes.com/Vehicles/Scooter.htm
http://www.velodrome.com/HondaC70/HondaC70.html
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