Any experience with Electrosport Industries ESR100 r/r???

[Guest]

I was offered a new-in-the-box, unused Electrosport Industries ESR100 regulator/rectifier by a local rider who was going to use it for a GS750 restoration project --- his wife, however, had other ideas on better uses for the garage space, so he's been parting out the bike & parts he was going to use.

I'm in the process of going through my charging system & his offer of a free regulator/rectifier is something that I just couldn't resist --- no-cost being right in my budget.
However, I don't want to install an inferior or crappy component on my bike.

So does anyone have any experience with these units, heard of any negative issues, or have any thoughts either way?
I'd really appreciate some feedback.

[82tiburon]

No one has ever heard of this unit?

[Nessism]

A Shindengen SH775 is better and will help protect your stator. About $40 from ebay (used).

[Nessism]

https://www.ebay.com/itm/9600-2012-12-13-14-Polaris-RZR-4-800-800S-Voltage-Regulator/312066801417?hash=item48a8a17f09:g:HS8AAOSw5utagxqK&vxp=mtr

Ask the seller if "SH775 is printed on the top" before purchase.

[OldVet66]

If it is Electrosport and a shunt type R/R stay far far away from it. They make quite nice stators but if that unit is like their past R/R's you will need to buy a stator sooner or later. With any R/R think Series.

[82tiburon]

If it is Electrosport and a shunt type R/R stay far far away from it. They make quite nice stators but if that unit is like their past R/R's you will need to buy a stator sooner or later. With any R/R think Series.

I'm a bit confused here (early & no coffee yet) --- what do you mean by "shunt type", "Series" & how can I tell the difference?
Please excuse my ignorance.

[82tiburon]

I went to Electrosport's website & found the model my friend gifted me.
Maybe this can clarify things a bit:

http://www.electrosport.com/street-bikes/suzuki/gs750e-16-valve-models-80-83/suzuki-univeral-regulatorrectifier.html

[Nessism]

I'm a bit confused here (early & no coffee yet) --- what do you mean by "shunt type", "Series" & how can I tell the difference?
Please excuse my ignorance.

There are countless threads here explaining the difference. Try searching for info about "compufire" or SH775.

[82tiburon]

There are countless threads here explaining the difference. Try searching for info about "compufire" or SH775.

I understand that, but I don't have an SH775 --- I'm not too crazy about laying out $$$ for a used electrical component & it's required wiring hook-up.
This Electrosport is what I have on hand, brand new & would just like to know a bit more about it quality or lack of.

[bccap]

I understand that, but I don't have an SH775 --- I'm not too crazy about laying out $$$ for a used electrical component & it's required wiring hook-up.
This Electrosport is what I have on hand, brand new & would just like to know a bit more about it quality or lack of.

As Nessism says the SH 775 is a better choice. Having said that I didn't know that when I first joined the site and resurrected my 750 from the dust of my garage. At the time on the home page of GSR Electrosport was recommended so I bought one. It's been in there since 2011 and doing just fine. I suspect it is better than the original as it is slightly larger and will cool better. As the original was in there 30 years I'm not too worried about the replacement. The only thing I would suggest is running an additional ground wire from it to the negative pole on the battery as well as hooking it up directly which others can guide you on.

[Deuce]

Some people here will not let you rest till you do what they suggest. However, I did go with the SH775 suggestion, and have had absolutely no issues with the bike. I installed mine about 2 1/2 years ago.

[Nessism]

That Electrosport R/R is basically a generic chinese shunt type R/R. I suspect it will work fine...for a while at least. As with any shunt style R/R it will put your stator under stress by returning unused current (generating heat) and quite possibly shorten its life. That's the advantage of the SH775 "series" type R/R's: they don't return unused current to the stator and put it under stress. In my experience a shunt type R/R will get along best with an older stator that is already somewhat diminished. That's because these units don't make a bunch of extra power that will be returned and cause damage. So bottom line is that it's not only about "is this R/R any good," what R/R you pick is also about preserving your stator and making it live.

Regardless of what R/R you choose you still need to rewire the changing system to fix the bad factory wiring. And regarding a used R/R vs. new, the SH775 is made by Shindengen, the top OEM R/R supplier in Japan, and I've never heard of even one failing. You can hook it up using common spade terminals and then filling in the cavity in the R/R with RTV.

If you don't care about any of this and just want to install that free R/R, go for it. Just be sure to fix the factory wiring when you do.

[82tiburon]

That Electrosport R/R is basically a generic chinese shunt type R/R. I suspect it will work fine...for a while at least. As with any shunt style R/R it will put your stator under stress by returning unused current (generating heat) and quite possibly shorten its life. That's the advantage of the SH775 "series" type R/R's: they don't return unused current to the stator and put it under stress. In my experience a shunt type R/R will get along best with an older stator that is already somewhat diminished. That's because these units don't make a bunch of extra power that will be returned and cause damage. So bottom line is that it's not only about "is this R/R any good," what R/R you pick is also about preserving your stator and making it live.

Regardless of what R/R you choose you still need to rewire the changing system to fix the bad factory wiring. And regarding a used R/R vs. new, the SH775 is made by Shindengen, the top OEM R/R supplier in Japan, and I've never heard of even one failing. You can hook it up using common spade terminals and then filling in the cavity in the R/R with RTV.

If you don't care about any of this and just want to install that free R/R, go for it. Just be sure to fix the factory wiring when you do.

I hope I'm not coming across as stubborn or bull-headed, I just want to educate myself as much as possible about my bike's various systems so I don't have to ask so many dumb questions, that's all.

When I read "Series" I wasn't sure if we were talking about talking about wiring --- as in parallel vs. series.

I really do appreciate all of the feedback I've gotten on R/Rs.

As far as the SH775 goes, I have a line on one at a decent price that looks to just need either a pigtail or some other way to wire it up.

[Gorminrider]

I was offered a new-in-the-box, unused Electrosport Industries ESR100 regulator/rectifier by a local rider who was going to use it for a GS750 restoration project --- his wife, however, had other ideas on better uses for the garage space, so he's been parting out the bike & parts he was going to use.

I'm in the process of going through my charging system & his offer of a free regulator/rectifier is something that I just couldn't resist --- no-cost being right in my budget.
However, I don't want to install an inferior or crappy component on my bike.

So does anyone have any experience with these units, heard of any negative issues, or have any thoughts either way?
I'd really appreciate some feedback.

Well, I'd use it but in my past life I must have gone through the Depression or something... My own boogeyman is heat. If it gets hot , I look around to replace it....
I've got 4 "shunt" R/Rs all working fine
and, ps: I think the stator they sell is well-regarded here so can you trust them to sell a decent R/R ?

That Electrosport R/R is basically a generic chinese shunt type R/R

and the second-hand computer I'm using these last 5 years is "basically" a generic Chinese one badged with a maker's name...HP
But there are different layers of quality in Chinese products. It's very simple to pack poor quality into the very same heat sink. Looks can deceive. They get really chintzy with the copper and the quality control at the lower levels

[82tiburon]

I get the same grief about Chinese products from friends...until they need the use of a drill press, cut-off wheel, or heat gun.
Then my Harbor Freight "cheap Chinese junk" is OK with them.

I've owned all three --- and several other gems --- from them for over seven years & they've never failed me once in all of that time.
Hell, I'm old enough to remember when the bikes we all ride were referred to as "Jap junk"...