Series Regulator Source SH775

[Chuck78]

I will be eagerly awaiting to hear how this works for you! I'm ready to swap one on my 77 gs750 asap & even more so on my wife's 77 GS550B that charges with a max output of 11.9 volts & has a pesky intermittent misfire problem!

 

[Chuck78]

I wonder how much success one could have coating the insides of the terminal area with dielectrode grease very lightly, installing wires & spade connectors with a clean outside surface, & then pouring in rtv or a similar silicone type product - to have a removeable plug?

 

[Chuck78]

Well I was going to wait and see how Roger did with his, but after troubleshooting mine today to determine that my r/r was definitely the source of my low voltage problems, I jumped the gun when I found a used SH775 on ebay from a motorsports salvage vendor...

When installing this, I assume that the connector with three male spade terminals will be the stator connections, and the other two will be the battery positive and the negative ground. To determine which is which if they aren't labeled, would I just be safe to assume that the negative would have continuity to ground? If so, should be a no brainer to swap!

Also, the wire on my wife's 77 GS550 that goes from the stator to the headlight switch and then back to the regulator/rectifier, can both of those wires to the switch just be abandoned?

 

[salty_monk]

Well I was going to wait and see how Roger did with his, but after troubleshooting mine today to determine that my r/r was definitely the source of my low voltage problems, I jumped the gun when I found a used SH775 on ebay from a motorsports salvage vendor...

When installing this, I assume that the connector with three male spade terminals will be the stator connections, and the other two will be the battery positive and the negative ground. To determine which is which if they aren't labeled, would I just be safe to assume that the negative would have continuity to ground? If so, should be a no brainer to swap!

Also, the wire on my wife's 77 GS550 that goes from the stator to the headlight switch and then back to the regulator/rectifier, can both of those wires to the switch just be abandoned?

If it's the same as the FHO12 etc shunt ones then it should look like this...

If there is a connector in the middle on the right then just ignore it. It's for an ECU hook-up I believe & not necessary on our bikes. (I have fitted 2 in this way, ignoring the middle leg & both worked fine).

 

[qcktvr]

Polaris RR

Polaris RR

Hi Everyone,
I have been looking at the RR posts, my 1150EF only charges at 13v with the headlight on, but 14v without it; I have been saving for a compufire so the Polaris RR at $65 is tempting...
BUT there is evidently a problem with their units on 2010 sleds, replaced under warranty, but... different pt #, 4012476, so maybe quite different, found a thread at snowandmud.com when I did a search..
Should I be concerned now that its 2012??
Still pondering
Trevor T.,
1984 1150EF in Durham Ontario

 

[Chuck78]

If it's the same as the FHO12 etc shunt ones then it should look like this...

If there is a connector in the middle on the right then just ignore it. It's for an ECU hook-up I believe & not necessary on our bikes. (I have fitted 2 in this way, ignoring the middle leg & both worked fine).

Well my current regulator is barely charging at 12.2V no matter what rpm's, and stator seemed to check out fine. I got a used SH775 last week and plan to put it on later today! I can't tell you much about engine temps, but I am really glad to have scored a series R/R for a very affordable price (about $45 used for a 1 year old piece from a wrecked Polaris 800)

Anyhow, I am going to install it as the photo above shows, 3 stator phases going into the connector with 3 terminals, and for the other connector, the red 14V output on the left, and the ground on the right. I sure hope they are consistent with their wiring!

 

[Roger P.]

Got mine two days ago, so the delivery was a bit long, but perhaps understandable as it came from Texas. Unfortunately, the weather has turned to crap lately, so I might not be digging too far into this project before the snow falls. I have no garage to work in, and a honey-do list that seems predicated on fine weather, but if the weather turns nice for a bit, I might just ride it up the road to work and swap it out there. It would be nice, as I have access to a Fluke FLIR IR camera.

No indications of polarity for the output terminals at all, so I guess I'll try the wiring from the picture above when the time comes. I notice that the last numbers on the bottom seem to indicate a later modeal than the first pic in this thread, so maybe there are some subtle upgrades inside.

My apologies to Chuck78. I missed your PM, as I miss almost all of them. I rarely log in if I'm just browsing the thread.

 

[niclpnut]

I tested both of the sh775s I have. One is on my 78 1000 and the other on my 83 1100.

Wiring is the same as pictured above. DIY style.

Both work great with constant and even voltage readings at each rpm setting indicated in the quick check/stater papers test.

I'm quite happy with this unit and would recommend it.

Nic

 

[robertbarr]

I just picked one up new for $35. I have a FH009 installed that I'm pretty impressed with as far as super-stable regulation is concerned; it looks like this will plug in as a direct replacement, and I can compare the two.

What I can't compare, unfortunately, is current draw from any of the stator legs to watch the serial regulation in action. I'm guessing that'd take a scope.

So, one will be the operational unit and the other will be a spare. Odds are I won't need a spare, but...

 

[Chuck78]

Well, this is all great news! I'm glad I've gotten a hold of one of these fine scores, and didn't have to spend $200 on a new Compufire or CE602 unit to get this technology!

 

[salty_monk]

I'd really like to see what on a scope... Posplayr also suggested to me that a decent clamp meter might be able to show the necessary info, you wouldn't get the nice graph obviously but you could physically witness it.

You are basically looking for when it goes open circuit.

Dan

 

[posplayr]

I'd really like to see what on a scope... Posplayr also suggested to me that a decent clamp meter might be able to show the necessary info, you wouldn't get the nice graph obviously but you could physically witness it.

You are basically looking for when it goes open circuit.

Dan

Dan,
When you compare a Shunt to a SERIES R/R you should see much less current in each leg of the stator with the SERIES. I plotted the comparison I observed between the FET and CF a while back.
So all you need is for something to measure average AC current. Most cheap AC current clamps are designed for 60 hz only. At 5000 RPM you will be looking at 500 hz for an 18 pole stator. So the question is whether an AC clamp has any effectiveness at this frequency and even if not accurate can it compare the SERIES to SHUNT R/R on a relative basis at least.
A bunch of ifs
Jim

 

[salty_monk]

So we need to find a budget version of this Fluke.... (Actually this is not expensive either at $105.)

http://www.professionalequipment.co...74676&ef_id=RXpQCvWYSfEAABni:20121015232025:s

 

[koolaid_kid]

No, that one does 50Hz (Europe) and 60Hz (USA).
Your best bet would be to find one that works on military aircraft (600 Hz).
This one would probably work: 400 Hz clamp meter
Just don't rev the engine quite as high.

 

[salty_monk]

Maybe you missed this bit on that page... Or maybe I'm reading it completely wrong! :lol: (I'm a know enough to be dangerous sort of electrical guy & I think I am reading volts & you were perhaps concerned about the current).

AC Volts (50hz - 500hz) Ranges: 4V, 40V, 400V, 600V



There are plenty of Fluke models that will do 400hz at their limit on current (such as the 321) as well as amprobe, klein etc.

Fluke specs:

Range: 0 - 400 A
Resolution: 0.1 A
Range: 0 - 40 A (Fluke 322 only)
Resolution: 0.01 A
Accuracy: 1.8% ? 5 counts (50 - 60 Hz)
Accuracy: 3.0% ? 5 counts (60 - 400 Hz)
AC Response: Averaging

http://www.fluke.com/fluke/usen/Electrical-Test-Tools/Clamp-Meters/Fluke-320.htm?PID=56068

If you can measure using one of those at 400hz (at less than 5k rpm) then perhaps I'll get one if EBay can turn one up cheap enough...

 

[koolaid_kid]

You are correct, I missed it. That would be what you want.

 

[Roger P.]

I have a Fluke 333. It might be good enough for relative measurements.

 

[salty_monk]

Fluke says you need the 337 for variable speed drives but it has to be worth a go if you've got one on hand!

http://www.fluke.com/fluke/usen/Electrical-Testers/Clamp-Meters/Fluke-333.htm?PID=70330

 

[Chuck78]

Well I installed my used SH775 today and rewired a lot of the charging system and grounds, and it's charging like a dream now! 14.4 volts, no problem! about 13.6 just a little off idle speed. Relief... This unit is so much larger than the unit I pulled off of it, tiny unknown replacement with a 1990 manufacture date. Old unit with old corroded wiring and connectors (non-original) would charge at 12.2 at all rpm's above 2300... charging AWESOME now!

 

[salty_monk]

I stuck one of these on my bike yesterday.. (straight plug in for me).

It fits, reads etc exactly the same as the FH010 & the FH009 that I have as far as charging voltage etc.

Now to find someone with a clamp meter / scope...!