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Author Topic: Is my Rick's Regulator/Rectifier bad?  (Read 2548 times)

Offline zwade

  • Posts: 50
Is my Rick's Regulator/Rectifier bad?
« on: Jul 19, 2016, 20:49:27 »
Hey all,

So I finally am at the point of finishing touches on my 75 CB550F. Went to ride it the other day and it died on me. Did some tests and figured out the battery was not charging. Looked into it a little bit more and went through some tests I found on this site to test things.

Anyways I went to test the regulator/rectifier and I wasn't getting anything from the white wire. Started the bike up, hooked up the multimeter and ran a wire directly from my battery to the white wire coming from the stator (bypassing the regulator/rectifier) and wouldn't you know it, after revving the bike up the voltage on the battery started to climb.

This leads me to believe that the Rick's Regulator/Rectifier is not functioning as it should. I'm in a bit of denial at the moment because the damn thing is brand new. So I guess what I'm looking for is for someone to tell me why it's bad or that I did something wrong lol  ;D. I mean, it's brand new, how can it be bad? What could have caused it to go bad?
« Last Edit: Jul 19, 2016, 21:56:39 by zwade »
1975 Honda CB550F --- Brat Project

Offline zwade

  • Posts: 50
Re: Is my Rick's Regulator/Rectifier bad?
« Reply #1 on: Jul 19, 2016, 21:04:05 »
WELP, just tested it using Ricks youtube video and I got nothing. So stuffs broke I guess. Warranty on this stuff?
1975 Honda CB550F --- Brat Project

Offline Sonreir

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Re: Is my Rick's Regulator/Rectifier bad?
« Reply #2 on: Jul 20, 2016, 12:30:41 »
WELP, just tested it using Ricks youtube video and I got nothing. So stuffs broke I guess. Warranty on this stuff?

So here's the scoop on those...

They're all bad.

I used to import these things from China (there is pretty much only one factory in the world that makes them, no joke) and all was good.

Then, about a year ago, someone at the factory fucked up and started putting the DOHC regulators into the SOHC line. The units had all the right wires for the SOHC units, but the behavior was like the units designed for the DOHC models. At this point, I stopped selling them to the general public because they're no longer plug and play. I would have figured that other distributors would have found this point by now, but when you buy from China there are no returns and it can sometimes suck to have to eat a few grand in product costs.

They can still be made to work with a little bit of wiring, however.

First up, you're going to need to bypass the subharness on your bike. The new R/R will need to be plugged directly into the alternator plug and not go through the main harness or the subharness.

From the unit to the alternator:
White to green
Yellow to yellow

From the unit to the battery:
Red to battery positive
Green to battery negative (you can also use the green wire leftover after disconnecting the old regulator)

This leaves just the black wire on the R/R. This will needs to connect to two different places, so it will need to be spliced. First, it should connect to the white wire in the alternator plug, but it will also need to connect to a black wire in the harness (the leftover black wire that connected to the old regulator is a good spot).

Make sense?
Sparck Moto - http://www.sparckmoto.com

Audaces fortuna iuvat.

1977 Honda CJ360 - Café SOS - Stage One™, Café SOS - Stage Two™
1976 Puch Maxi - APuchalypse Now
Suzi T500 Cobra Resto

Custom Gauge Graphics
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Offline zwade

  • Posts: 50
Re: Is my Rick's Regulator/Rectifier bad?
« Reply #3 on: Jul 20, 2016, 13:30:30 »


Then, about a year ago, someone at the factory fucked up and started putting the DOHC regulators into the SOHC line. The units had all the right wires for the SOHC units, but the behavior was like the units designed for the DOHC models. At this point, I stopped selling them to the general public because they're no longer plug and play. I would have figured that other distributors would have found this point by now, but when you buy from China there are no returns and it can sometimes suck to have to eat a few grand in product costs.

They can still be made to work with a little bit of wiring, however.

First up, you're going to need to bypass the subharness on your bike. The new R/R will need to be plugged directly into the alternator plug and not go through the main harness or the subharness.

From the unit to the alternator:
White to green
Yellow to yellow

From the unit to the battery:
Red to battery positive
Green to battery negative (you can also use the green wire leftover after disconnecting the old regulator)

This leaves just the black wire on the R/R. This will needs to connect to two different places, so it will need to be spliced. First, it should connect to the white wire in the alternator plug, but it will also need to connect to a black wire in the harness (the leftover black wire that connected to the old regulator is a good spot).

Make sense?

I ordered mine 2 years ago, and it has just sat new in the box since until a week ago. Would it still be part of the bad batch you think?

This seems to make sense, so instead of white to white from the r/r it needs to be

White to green from r/r.

Leave the 3 yellows the same.

Leave red the same.

Leave green the same.

Splice the black from the r/r and connect one to white on the alternator and one to power where it is now
1975 Honda CB550F --- Brat Project

Offline Sonreir

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Re: Is my Rick's Regulator/Rectifier bad?
« Reply #4 on: Jul 20, 2016, 13:32:43 »
About a year ago is when I noticed the problem. It could have been going on longer than that.

And yeah, your description looks good to me.
Sparck Moto - http://www.sparckmoto.com

Audaces fortuna iuvat.

1977 Honda CJ360 - Café SOS - Stage One™, Café SOS - Stage Two™
1976 Puch Maxi - APuchalypse Now
Suzi T500 Cobra Resto

Custom Gauge Graphics
Custom Wiring Harnesses

DTT Red, White, and/or Black 360 Club - Better than those Blue guys

Offline zwade

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Re: Is my Rick's Regulator/Rectifier bad?
« Reply #5 on: Jul 20, 2016, 13:35:44 »
also, i ran this test and it failed so will what you said still work? https://youtu.be/kDx3zgOLShY?t=1m51s
1975 Honda CB550F --- Brat Project

Offline Sonreir

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Re: Is my Rick's Regulator/Rectifier bad?
« Reply #6 on: Jul 20, 2016, 13:37:47 »
That's a permanent magnet regulator/rectifier. They work a bit differently. Not all of the tests will be the same between the two.

I can run you through the tests for you unit, but it's fairly involved if you don't have an adjustable power supply.

It would take less time to hook things up and test it on the bike.
Sparck Moto - http://www.sparckmoto.com

Audaces fortuna iuvat.

1977 Honda CJ360 - Café SOS - Stage One™, Café SOS - Stage Two™
1976 Puch Maxi - APuchalypse Now
Suzi T500 Cobra Resto

Custom Gauge Graphics
Custom Wiring Harnesses

DTT Red, White, and/or Black 360 Club - Better than those Blue guys

Offline zwade

  • Posts: 50
Re: Is my Rick's Regulator/Rectifier bad?
« Reply #7 on: Jul 20, 2016, 13:39:50 »
That's a permanent magnet regulator/rectifier. They work a bit differently. Not all of the tests will be the same between the two.

I can run you through the tests for you unit, but it's fairly involved if you don't have an adjustable power supply.

It would take less time to hook things up and test it on the bike.


Okay I gotchya, I will try to wire it up like you said and see if that works out. Thanks for the help man!
1975 Honda CB550F --- Brat Project

Offline zwade

  • Posts: 50
Re: Is my Rick's Regulator/Rectifier bad?
« Reply #8 on: Jul 21, 2016, 01:28:27 »
I got it wired up like you said, walla! The bike runs and the battery is charging. Question though, is the power still being regulated with this method?
1975 Honda CB550F --- Brat Project

Offline Sonreir

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Re: Is my Rick's Regulator/Rectifier bad?
« Reply #9 on: Jul 21, 2016, 09:52:06 »
Yes, but you should double check this.

It can be done using a multimeter across the battery terminals. You should be getting around 13V at idle with things capping out around 14.5V as revs increase. If voltage tops 15V, shut things down and we can try something else.
Sparck Moto - http://www.sparckmoto.com

Audaces fortuna iuvat.

1977 Honda CJ360 - Café SOS - Stage One™, Café SOS - Stage Two™
1976 Puch Maxi - APuchalypse Now
Suzi T500 Cobra Resto

Custom Gauge Graphics
Custom Wiring Harnesses

DTT Red, White, and/or Black 360 Club - Better than those Blue guys