Honda-SOHC
SOHC.co.uk Forums => CB500/550 => Topic started by: Wenman on March 14, 2017, 09:59:29 PM
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I have a cb550f supersport and am nearing the end of my build. I have just ordered an antigravity 8cell battery and it recommends you replace the rectifier with a modern one. I have purchased a combined one from David silver spares which means I can also lose the bulky stock reg too which will help no end with the available space in my electrics tray I have fabbed up.
So my question is the new reg/rec will plug straight into the connector for the stock reg 3xyellow wires 1x green and 1x red. However I have a white, green and black off the old reg and only the double ended spade wire left on the new reg(see pic).
Can someone tell me in laymans terms how to finish this up and what goes where exactly?
Thanks in advance!
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Ask DS for a wiring diagram for the unit
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I have the same unit I think (Century Ignition Parts, from DS) and the instructions for mine say that you need to plug the block connector in and then "Remove either of white and black wires of original regulator. Wrap the removed terminal with insulating tape and do the same with the other wire (black or white). Put one terminal of new ic rec/regulator to white or black wire which are removed from original regulator and put the other terminal to the other wire. Don't remove the green wire of the original regulator, keep it installed. Green one is earth wire".
The associated drawing shows the double - ended spade wire and says "connect to white wire and black wire which are removed from the original regulator".
Mine works fine when connected in this way, however I am no electrician so any more technical questions than those that I can copy from the instructions for you would probably be beyond me!
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Too late now I know but the Electrex World unit comes with all the correct connectors fitted and plugs straight into the OEM harness.
Here's the wiring diagram for that unit. It may help.
(http://i41.photobucket.com/albums/e254/gtmdriver/Charging%20Circuit%20with%20Electrex%20World%20RR24_zpsy3ymsaar.jpg) (http://s41.photobucket.com/user/gtmdriver/media/Charging%20Circuit%20with%20Electrex%20World%20RR24_zpsy3ymsaar.jpg.html)
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and it recommends you replace the rectifier with a modern one.
Why is that?
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Because the original reg is very crude giving full charge, half charge or no charge and those batteries need a smoother charging curve
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Thanks flat four! I'm confused as it implies leaving the green from old reg connected as it is earth! Does that mean leave connected to old reg? Only I thought this new unit enabled me to remove old reg or does it mean leave it hanging not connected and remove old reg?
Appreciate the help!
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Wenman, according to the instructions supplied with my unit the old regulator should be left fitted and undisturbed, although no doubt someone with more knowledge than I have could advise you on how to achieve the same result in another way if you want to remove it.
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You don't need the old regulator as the new unit supercedes it. Cable-tie the spare green tidily to the loom as it's not required.
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Awesome thanks Mike!