SOHC.co.uk Forums > CB500/550

Electric problem

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Lobo:
... sounds a good explanation Oddjob.

Hadn't really picked up on that pic (of the "coil" earth) Bomber, but honestly, those Halfords crimp connectors are the pits ....  often as not a wire will just 'drop out'. Whilst you've got your bike in bits it might be a good idea to delete all such troublesome crimps & renew with quality ones or solder connections. (ie solder the wire into the connectors rather than use poor crimp)

bomber:
Right, so you reckon buying this
http://www.amazon.co.uk/Draper-13658-5-Way-Crimping-Terminal/dp/B0001K9PBY/ref=sr_1_2?ie=UTF8&qid=1389173399&sr=8-2&keywords=crimping+tool
was a waist of time and money...

Please shine some light on to this, I understand that poor quality tool will not help but, is this also apply that I need to buy expensive terminals?

Regards

Lobo:
...aye carrumba, seem to have put my foot in it! Sorry...

But if you're asking, then probably, yes. If they were indeed a great tool they'd be in common use commercially... seen such connections on your car / washing machine etc?

I accept a decent crimping tool, and the quality connectors to go with those are more pricey,  but in the long term a probable saving in terms of fewer failures / subsequent servicings.

These connections of yours will be subjected to bumps, vibrations, heat, moisture & so on... a recipe for premature failure. That said, no, you don't have to commit to other expensive options, you could just clean the inside of the connector terminal back to copper & solder the wire (s) in.

Cheers,
Simon

bomber:
Lobo,
""Another thing is I have strange cable I suppose earth going from negative terminal all the way to ignition coil, it looks like a recent upgrade..."

.... &  gotta say, this sounds a bit odd. Are you sure it actually connects to the coils.... or as Brian says, "there ought to be a cable in the loom going to the coil BRACKETS" (this wire will be likely Green, and earthing the coil units to the frame versus directly connecting to the coils wires."

You are right, this cable is just going to the frame and and as you can see on that picture, brown cable goes to the horn.
So, that earth cable doesn't do any thing more then earths horn, which is rather strange, but the horn is new, and it looks like a bodge of a previous owner.

I'm super excited as it all slowly starting to make sense, I'm feeling more confident then ever before that I can fix my electric issues!

bomber:
Oddjob, thanks so much for taking time with your explanation, I understand now what to do.
I'm about to run to garage to check size of the male blade on rectifier as I will need new females to replace riveted connections.

Finally feel that I'm making progress.
Thanks every one who contributed, there is no chance I would be able to fix my bike without this forum!

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