Brown & Blue wire

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Flo

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Aug 4, 2009
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Amazing how a small wire like this feeds the whole wiring system. Looks around an 8 amp.
Mind you, been good for many a year.
 
In pre-decimilization days, when it was still ₤-s-d, amps used to be worth more, so you needed less of them and the skinny wire was OK. :wink:
 
Flo said:
Amazing how a small wire like this feeds the whole wiring system. Looks around an 8 amp.
Mind you, been good for many a year.
Click to expand...

Are you suggesting that if you were to build a custom harness, that one might be thicker?
 
swooshdave said:
Flo said:
Amazing how a small wire like this feeds the whole wiring system. Looks around an 8 amp.
Mind you, been good for many a year.
Click to expand...

Are you suggesting that if you were to build a custom harness, that one might be thicker?
Click to expand...

Something to think about. I built my own harness and used all the same guage of wire. Thinking back now, I might have used a thicker guage for the hot perhaps.
 
They're all hot, no? I don't mean, hot, as in not connected to ground, but hot, as in, carrying the same current as the brown blue ones. (That's a real question, BTW - if I'm wrong, I'd like to be educated.)

Having said which, yeah, I'd like to rebuild my own (Mk I) using 12 gauge wire throughout. Overkill - gotta love it!
 
According to my copper wire chart, #8 wire is good for 46 amps in conduits or bundles and #12 wire is good for 23 amps, which will correspond to the breakers in your house panel if you look at them. #10 is good for 30 amps. So I think even #12 wire should be plenty good enough for anything unless you have some special equipment. I would use stranded wire on a Norton instead of the solid copper wire like house wiring.

Dave
69S
 
Yeah, I think people use 8 gauge for battery-to-electric starter connections on fairly heavy bikes. No kickstart Norton should need anything that heavy! 12 gauge is overkill I'm sure but hey why not?
 
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