1974 Honda CB125S Wiring

zguinn · L Plate Warrior Joined: 16 Mar 2015 Karma :

I recently purchased a CB125S with wiring issues. I am somewhat mechanically inclined but when it comes to wiring and Electrical, it may as well be Chinese.
Are there any CB owners out there that would be willing to snap a few pictures of the wiring around the battery, rectifier, etc.? If you would, I can replicate it or at least see where mine is different.
Thanks all.

Fizzer Thou · World Chat Champion Joined: 06 Aug 2011 Karma :

I had a 1972 CB125s back in '75 when I first started out biking and it was the best thing that I have ever bought.Great little bikes and it taught me a lot.

However,the electrics are very basic,with the battery being the most important part of the charging system.Ensure that this item is good before you start to fault find.

It would be easier if you took good clear pics of what you have.Then suggestions can be made to help you Thumbs Up

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unitynotsocri... · Banned Joined: 29 Jun 2011 Karma :

If the alternator is ok then I'd just check every bullet connector and terminal and check the switchgear checks out with a multimeter, the pin\ connection charts are in the Haynes manual.
There's little to go wrong really,just a bridge rectifier,the little metal finned box ,be carefully if replacing a coil as most modern coils are designed for cdi s.
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Blue_SV650S · World Chat Champion Joined: 27 Nov 2008 Karma :

I used to have one, but no longer own it. So lets flip this round, you take snapps of your bike and I'll tell you if anything looks wrong. I still have the manual for it so can check the wiring diagram for you too.
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Ariel Badger · Super Spammer Joined: 02 Dec 2006 Karma :

moonzoomer · World Chat Champion Joined: 01 Jul 2012 Karma :

https://i1142.photobucket.com/albums/n604/mawlarky/CB125S1_zps02acjjds.jpg

Fisty · Super Spammer Joined: 11 Apr 2007 Karma :

Wot. No sperg?
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moonzoomer · World Chat Champion Joined: 01 Jul 2012 Karma :