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Wiring connectors, what size are Honda?

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Laverda Dave:
I'm trying to determine exactly what size of wiring connectors are used on the 1976 TL125s I am currently restoring.
Something I thought would be easy to determine is turning out to be a brain teaser!
So far I've come across 2.2, 2.8 and 3.6mm connectors on the internet used for Honda bikes. I thought I should be using 3.6mm and life would be a box of chocolates but the Kojat (not sure if I've spelt that correctly) state 2.8mm are used on older Honda's although it doesn't define what is an old Honda? I consider myself to be 'old' but I'm young compared to some people I know!
How do I measure an existing connector to determine the actual size because they are different diameters at the tip and the crimp?
In addition, I would like to use thinner gauge cable to make new parts of the existing loom but I've read as the system is 6v I should use 1.0mm gauge (same as existing) due to the higher resistance in a 6v circuit?
As you can probably guess electrickary when it comes to automotive applications is not my strongest asset!
Any help/guidance would be helpful in order to avoid the finished bike becoming a mobile bonfire!

TrickyMicky:
Don't be tempted with thnner gauge cable. Remember the old equation, volts x amps = watts. So, if you use a 30watt headlamp bulb using 6 volts, then it will be drawing 5 amps. One of the main reasons for using a 12 volt system.  I am not genned up on electrickery either, so I was pleased to be taught, only this year, that on lower voltage systems, (up to about 30 or 40),  only use braided cable and not single strand. Apparently, current will follow the path with the least resistance, which is the surface of the cable, not through the central core. So braided cable with a host of strands offers the least resistance.I don't know much about the TL125, but I think on some of the earlier Hondas, it was not too much of a job to convert them to 12 volt. Have fun. Mike.

neat street:
Contact Big Al on here, he will do the right connectors for you, at least then you know you have the right size.

McCabe-Thiele (Ted):
If you have an original bullet connector I would have thought you could put some calipers on it Dave?

Clearly not 🤐

Bryanj:
76 is not classed as early, before the 750(1909) some are smaller and as said NO to smaller cable, half the volts doubles the current so bigger xable

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