Weird Electrical Problem. Not sure where to turn

[ianryeng]

Not trying to high-jack your thread but where do you get this Polaris SH-775 regulator?

[RustRider]

your test results are not showing

Sorry about that. See attached thumbnail.

[posplayr]

Sorry about that. See attached thumbnail.

Sorry, based on those results the r/r is either really screwed up or just fine

If I assume you did the measurements correctly it says that of the 6 diodes three are shorted and 3 are open; in other words they are all broke,

If I look at the symmetry of the measurements and assume you mis labeled something then I would say all is OK except I don't think you changed the headlamp loop for the R/W stator leg.

Did you ever do a Quick Test? It takes 5 minutes if the bike is together.

On the other hand if I believe the tests where the R/R gets hot with the engine off then maybe the thing is fried. What type of R/R is this? You have to realize that the diode tests only apply to a standard SCR Shunt type R/R. Even the FET shunt does not have all 6 diodes making the test much less than fail proof.

[RustRider]

The R/R is the original. I have not had a chance to do the Quick test. I know the battery is good and the stator is charging it. I don't know if there is over charging.

The electronics on this bike look very much un-tampered with. There is no aftermarket work to the bike and all the harnesses look like factory jobs. I'm thinking is might be worth putting in a new R/R as this one seems cooked. If it doesn't fix the problem at least it's one thing off the list and I can work forward.

Not trying to high-jack your thread but where do you get this Polaris SH-775 regulator?

I was also unable to find any info online about this unit. I was going to call the local chopper shop and see what they can get in.

[posplayr]

The R/R is the original. I have not had a chance to do the Quick test. I know the battery is good and the stator is charging it. I don't know if there is over charging.

The electronics on this bike look very much un-tampered with. There is no aftermarket work to the bike and all the harnesses look like factory jobs. I'm thinking is might be worth putting in a new R/R as this one seems cooked. If it doesn't fix the problem at least it's one thing off the list and I can work forward.



I was also unable to find any info online about this unit. I was going to call the local chopper shop and see what they can get in.

All the info is here. By all accounts so far (but not guaranteed) the SH-775 is the equivalent of the Compufire( a series R/R) That would make it 4 total SERIES R/R that I know of exist (Compufire, SH-775, Cycle Electric and a German manufacturer also make them). I have documented the Compufire performance but not ever had the chance with the SH-0775.

http://www.thegsresources.com/_forum/showthread.php?p=1849963&highlight=Polaris#post1849963

http://www.thegsresources.com/_forum/showthread.php?t=200004&highlight=SERIES

[gs11ezrydr]

I have had several Suzuki R/R's act as yours with getting hot or draining the battery while not running. And the test I have done (not saying it is right) was to test between the + pos. and - neg. at the reg/rect on found them to have direct continuity.Shorted to ground therefore requiring repl. Seems like you have a similar situation here. Off base a little here. I have had some LT160 atv's a few years back that the rubber boot covering the battery/starter connections at the selenoid had a real high "carbon" content when manufactured and caused the battery to drain down.Wierd. After I diagnoised it a few times Suzuki came out with a bulletin for us techs. Just wanted to share that.

[posplayr]

I have had several Suzuki R/R's act as yours with getting hot or draining the battery while not running. And the test I have done (not saying it is right) was to test between the + pos. and - neg. at the reg/rect on found them to have direct continuity.Shorted to ground therefore requiring repl. Seems like you have a similar situation here. Off base a little here. I have had some LT160 atv's a few years back that the rubber boot covering the battery/starter connections at the selenoid had a real high "carbon" content when manufactured and caused the battery to drain down.Wierd. After I diagnoised it a few times Suzuki came out with a bulletin for us techs. Just wanted to share that.

That is interesting in that normally I would assume that the power devices(either diodes or s cr's )would fail either open or closed. What you are reporting suggests the low power sense electronics of the regulator can short. This does make sense in that a direct short would blow a fuze, a soft short ( higher impedance) would create a smaller drain less than the fuze value but still drain the battery

[tom203]

Not trying to high-jack your thread but where do you get this Polaris SH-775 regulator?

Apparently used on Polaris stuff- like this

Utility Vehicles 2011R11HR76AG/AR RANGER 6X6 800 EFI

The following link now leads to backorder statement- might have to search for the SH-775 elsewhere

http://www.cyclepartswarehouse.com/fiche_section_detail.asp?section=1433499&category=Utility

[RustRider]

Success

Once again, thank you to everyone who had input on my problem. I put in a new R/R and all is well. I got a Rick's motorsport electronics one. It's an after-market unit that plugs right in. I looked into the Polaris one but the dealer was quite far away. Mainly out of convenience, I had the chopper shop down the street order this one.

I did have bad grounding to the starter solenoid. I think this is unrelated. I made a new ground lead for that and the bike is running great.

[850GT_Rider]

Apparently used on Polaris stuff- like this

Utility Vehicles 2011R11HR76AG/AR RANGER 6X6 800 EFI

The following link now leads to backorder statement- might have to search for the SH-775 elsewhere

http://www.cyclepartswarehouse.com/f...tegory=Utility

I just ordered one of those and I THINK it came to the house. I'll find out when I get home tomorrow.
May have squeaked in under whatever deadline they had.....

Edit - I wonder if it's ALL Polaris dealers or just Cycle Parts Warehouse?

[posplayr]

Once again, thank you to everyone who had input on my problem. I put in a new R/R and all is well. I got a Rick's motorsport electronics one. It's an after-market unit that plugs right in. I looked into the Polaris one but the dealer was quite far away. Mainly out of convenience, I had the chopper shop down the street order this one.

I did have bad grounding to the starter solenoid. I think this is unrelated. I made a new ground lead for that and the bike is running great.

It is VERY MUCH related; that is the main path for the harness B/W ground to return to the R/R(-)

[tom203]

I just ordered one of those and I THINK it came to the house. I'll find out when I get home tomorrow.
May have squeaked in under whatever deadline they had.....

Edit - I wonder if it's ALL Polaris dealers or just Cycle Parts Warehouse?

I hope you got it! should be available at all Polaris dealers; Cycle Parts Warehouse likely had more orders (courtesy of Steve's link here) than anticipated. If you can do some testing for us, let us know please . Shindengen apparently has more series units in the design stage.

[Guest]

Shindengen calls it a 3phase open regulator.


　These regulators rectify the output from a three-phase generator, charge batteries, and control charging when battery voltage is high by opening the generator input.

[Guest]

The CompuFire must be getting popular http://www.ebay.com/itm/Voltage-Regu...-/310397820396

[RustRider]

Not all dealers I'm guessing. I called the closest one to me and they said they could get it in from Polaris in a couple days. I'm in central NY.