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Rectifier/Regulator replacement list

  • Thread starter Thread starter Matchless
  • Start date Start date
Well done Jim! You still know your stuff! I am very rusty as you probably noticed and have forgotten most of the theory due to wear and tear. Although I can still recall the story of Micro-Farad and Milli-amp quite well!

Basically we were trying to figure out if Salty's stator will run warmer if he uses a FET R/R and how much warmer.

Jim if you figure it out, as I think you will, it would be usefull info to all of us myself included.

Salty, apologies for us fooling around a bit, and I think you will agree Jim gets full marks for going all the way when it comes to his passions!

Jim has already contributed a wealth of detailed information to the forum members, which I am sure has been read and used by many.:clap:
 
Matchless said:
Well done Jim! You still know your stuff! I am very rusty as you probably noticed and have forgotten most of the theory due to wear and tear. Although I can still recall the story of Micro-Farad and Milli-amp quite well!

Basically we were trying to figure out if Salty's stator will run warmer if he uses a FET R/R and how much warmer.

Jim if you figure it out, as I think you will, it would be usefull info to all of us myself included.

Salty, apologies for us fooling around a bit, and I think you will agree Jim gets full marks for going all the way when it comes to his passions!

Jim has already contributed a wealth of detailed information to the forum members, which I am sure has been read and used by many.:clap:
Click to expand...

Thanks Andre,
I've done some preliminary calcs but dont want to mis report anything. :o I'll look at this tonite
Jim
 
It's all useful stuff. I have a very basic understanding of most of it from my College (UK college 16yr - 18yrs, we specialise in 3 subjects at that stage) Physics but some of it goes over my head!

I guess as Jim says - we should probably be ready to replace stator's more often than we do...

By the way... won't state of charge of the battery also have an impact on heat generated as some of that current would be used up by the battery to charge it if not fully charged wouldn't it?

Dan :)
 
salty_monk said:
It's all useful stuff. I have a very basic understanding of most of it from my College (UK college 16yr - 18yrs, we specialise in 3 subjects at that stage) Physics but some of it goes over my head!

I guess as Jim says - we should probably be ready to replace stator's more often than we do...

By the way... won't state of charge of the battery also have an impact on heat generated as some of that current would be used up by the battery to charge it if not fully charged wouldn't it?

Dan :)
Click to expand...

Dan,
Ironically the more load the GS/Battery takes the less that has to be crow-bared to the stator when the voltage gets too high.
Jim
 
Ok, so this is a 23 page thread, and I can feel my brain burning through the top of my head, so would anyone be kind enough to tell me which lead on my R/R is the positive and which is the negative? Also, since my bike (79 GS1000E) has a separate regulator and rectifier, is there anything I need to bear in mind when wiring it in, like some circuitous wiring from the old setup that needs disconnecting? Please remember to explain things to me as though you were speaking to a somewhat dull child, as I am not the most brilliant crayon in the box.
 
burp reynolds said:
Ok, so this is a 23 page thread, and I can feel my brain burning through the top of my head, so would anyone be kind enough to tell me which lead on my R/R is the positive and which is the negative? Also, since my bike (79 GS1000E) has a separate regulator and rectifier, is there anything I need to bear in mind when wiring it in, like some circuitous wiring from the old setup that needs disconnecting? Please remember to explain things to me as though you were speaking to a somewhat dull child, as I am not the most brilliant crayon in the box.
Click to expand...

Hi,

Post a new thread in the new electrical section. You'll probably get a better response.

It depends on which r/r you have, stock? 5 wire? 6 wire? 7 wire? Honda? Normally the red is the hot, the black is the ground, and the yellow wires connect to the stator. If you have more than five wires and different color wires, then all bets are off.


Thank you for your indulgence,

BassCliff
 
Last edited:
I finally fired up the bike and tested the FH008 I installed 5 months ago... geez this has taken forever..

12.85v with the bike off.
13.95v at idle
14.05v at 3k.. I can live with that..
 
sschering said:
I finally fired up the bike and tested the FH008 I installed 5 months ago... geez this has taken forever..

12.85v with the bike off.
13.95v at idle
14.05v at 3k.. I can live with that..
Click to expand...

Dare I ask what took 5 months?

It would be best to know what voltage is a 5K RPM. unless you never get that high?

With a dirty connection usually on the positive side the voltage could drop further at 5K.
 
posplayr said:
Dare I ask what took 5 months?

It would be best to know what voltage is a 5K RPM. unless you never get that high?

With a dirty connection usually on the positive side the voltage could drop further at 5K.
Click to expand...

I'll take a reading when I get a chance..

As for why it took 5 months.. Time , money (mostly time I never have) and a never ending series of PO messes to clean up..

I'm sure it'll see the high side of 5k a few times a day :)
 
Last edited:
Just bumping this thread... it's got a lot of useful info, but I had a hard time finding it just now... :D
 
Just so you know, that list is not written in stone. I put a reg/rec out of a mid 90s KLR 650 into an 84 GS750E and it's quite happy in there. It is a six wire so it's connected to switched positive in the usual fashion.
 
aaron74 said:
Just so you know, that list is not written in stone. I put a reg/rec out of a mid 90s KLR 650 into an 84 GS750E and it's quite happy in there. It is a six wire so it's connected to switched positive in the usual fashion.
Click to expand...

Not sure I understand what you are saying?:confused:
The purpose of the list is to enable people to interchange R/R's more easily.......
 
Wow, just.. wow!

What an epic thread.
I think I've pulled a muscle in my head.

So now the question I have is do I get the FH012AA for the 750?
Or do I talk to Duaneage and try to sweet talk him into sending a Honda unit over to Australia...
Hmmm.. Ponderings.

A lot of this has gone over my head but some has stuck.
I'm leaning towards the Honda unit for price and, as far as I can figure, ease of fitment.

Thank you gents for the info.
I'm off to PM Duaneage..
 
Leigh said:
Wow, just.. wow!

What an epic thread.
I think I've pulled a muscle in my head.

So now the question I have is do I get the FH012AA for the 750?
Or do I talk to Duaneage and try to sweet talk him into sending a Honda unit over to Australia...
Hmmm.. Ponderings.

A lot of this has gone over my head but some has stuck.
I'm leaning towards the Honda unit for price and, as far as I can figure, ease of fitment.

Thank you gents for the info.
I'm off to PM Duaneage..
Click to expand...

the Honda has a very low incidence of burned stators.
 
Thanks Pos,
I did skip a few pages here and there.. :D

The only FH12s I could find on eBay are all around the $110 mark with connectors. Plus up to $40 postage..
I'm trying to put this bike back together as cheaply as possible to prove a point to myself...

As I said, epic thread and the work you guys have put in is nothing short of amazing.
 
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