"The Brown Wire", Answers, Updates, etc..

[Leather]

Hey all -

With so much electrical discussion going on and some free time I have updated some pages you may find of interest.

The STATOR page.

http://ourworld.compuserve.com/homepages/JET_AV8R/Vision/Stator/Stator.html

As for the Brown wire.... this is not on all Vison models, is shown on some diagrams and not others (not shown on '83 rk YET MY BIKE HAS IT) ...

Anyway... discussion and answers on this is on page. The "short" answer is:  this is used to measure voltage in the bike system to control the regualted output of the RR.  The BROWN wire is connected to the +12v battery via the ignition switch.  The advantage of this design has to do with high amp voltage drops across the main connection from the RR to the battery.  The BROWN wire is a low amp coonnection that should (in theory) be more accurate measurement of the charging system.  If you cut this wire ??? well, likely the RR will think your bikes needs to be charged and output 14.5 v ALL the time.  As for longevity... whos knows.  NO ONE and I mean NO ONE knows exactly how this crcuit is wired.  WE CAN ONLY GUESS.


My OWNERS FAQ:

http://ourworld.compuserve.com/homepages/JET_AV8R/Vision/OwningFaq.html

Have added some great photos that may answer some of your questions.

Lastly,  my lame VISION page with all links:

http://ourworld.compuserve.com/homepages/JET_AV8R/Vision/Index.Html


CHEERS ..... LEATHER

[Lucky]

"NO ONE and I mean NO ONE knows exactly how this crcuit is wired"

Can't be true, Electrex makes a replacement...

[Leather]

Well, true sort of.  Making a replacement is easy because you know what its supposed to do (the result) and you can do it right from scratch.  How Yamaha did it exactly is a guess. I mean, this isn't rocket science, so you can be pretty sure but....

Example:  Are all 3 phases regulated or just 2?  Can't tell for sure.  What components were used, etc...

Another Example: My old Porsche alternator was replaced several years ago.  The OEM is VERY expensive and wasn't that good anway (Nippon Denso Alternator).  The better aftermarket version included an extra part and  replacement for the RR because (I assume) they couldn't match it to the original.

Anyway ... no doubt the Electrex version is better.

- L

Ps  Sounds like your better (I hope) ??

[Lucky]

I was looking at the Electrex chart, and keeping in mind that it is universal, I noted that the first set of tests indicate that if op voltages are within specs then the charging system is ok.

I think it's becoming clear that if you REALLY want to be sure the charging system is working properly (on our particular bike anyway,) the R/R should be tested even if the bike passes the first test.

I think I'm going to name my bike "Epiphany"   ;D

I am feeling better, and I'm home now.  I met a guy there who was in for over a month with pnuemona.. WHEW!.  no way, no thanks!!!.  I guess i'm "Lucky", a week was more than enough for me.

On the good side, I have quit smoking as a result (2 packs/day,17 years)  THANK YOU, THANK YOU!!  and my wife is trying to quit too.  we have started cleaning the entire house, top to bottom, everything...   I have been pretty cranky, Bernard Lajoil cranky, but this will pass...
--Lucky

[Humber]

Eyoooo Lucky, Can you imagine that I am 22 years old and I HAVE NEVER had a cigarette in my mouth!!!!  I AM strong... as strong as POlish beer. I am SURE u will quite this suck... habit.


OK, lets go back to the Topic. As u guys know, I am not specialist on this bike but I gain knowledge everyday because of this FORUM.

And now What about my case???? I had to cut this fuc.... wire 'cos I had no charging with it.

So here is my question - WHy my system doesn't charge when the brown wire is connected?????

SOme of you suggested (and actually I checked wiring of German XZ) that this cable gathers information about charging in several points of the bike - mainly in the switches and some connectors. My idea is that I have corroded brown wire connection in one of the switches or just there is no connection, after 20 years it could happen.

What do yu suggest me, my STATOR and REC. passed all the test and still no charging with brown wire, WAsss up????

I don't think charging is not more then 14.8 even at high revs

[Humber]

GUYYYYYYYYYYYZZ SOmething significant came to my empty mind.

Lucky u are right, ELECTREX produces the same regulator for every Vision on the World. So I guess it is equipped with brown wire and actually it is.
But here is the case - suppose we have a RK version with fried regulator, We decide to buy electrex replacement, we open the pack and see that we can do nothing about brown wire??? simply because we don't have it in RK charging system.

What then????? Does it suggest that Electrex rec. is not suitable for RK version???? Or maybe it is a kind of improvement one can live without?????? Confusing a bit;)

[ArrrGeee]

ok just to add to the confusion  ;D here is my take on it.

The factory manual shows the brown wire as being used to
control the reg output. (based on the factory diagram) and as Leather stated.

I've never seen the haynes manual so I can't comment if it
is there or accurate. just to note that my 83 does have the
brown wire. should we do a survey?

It is logical though, compared to other charging systems I've
worked with, in some cases that lead would feed the charging idiot light with a feed from the other side to the battery. if there was a voltage differential, the charging light goes on.  they may have actually provisioned a charging light
setup on the v but scrapped it because of budgetary concerns. we all know it was way over budget due to r&d on the engine.  anyway... how about those old british cars that wouldn't charge if the idiot light bulb burnt out... but I digress.

In the case of Humber, I would suggest that he has a connection problem in the feed from the ignition switch on the brown wire, I could be wrong ( wouldn't be the first time )
a voltmeter should be able to tell you if you've got charging
voltage at the brown wire at the regulator with it disconnected. If you don't, then you'll want to find where the
problem is. (main ignition switch contacts? ) if you do, then
I would more likely suspect a defective regulator, has anyone
cut one open to diagram the circut?


I just checked out your updated pages Leather, there is a serious amount of info there, not that there wasn't before. heh, I like the wd40 can too, cool.
I want to know one thing tho' What is this?
http://ourworld.compuserve.com/homepages/JET_AV8R/Vision/Gallery/VisionPics80.jpg
It's got vision wheels, the engine looks like a turbocharged
sr500 the brakes are on the right instead of the left, even the tank looks vaugely familiar...
can't remember seeing one of these before.

-Ron

[XRay_Vision]

 Can This "brown" wire be ther to support situation like the one we have in Canada (Quebec)?
Where the headlight also serve as a running light, meaning its on at all time, I can't turn it off (no switch) since the law requires motrocycle to have their headlight on at all time (not at 60% but at 100%).
The headlight turns off as I push the starter button and comes back on as soon as I stop pushing the starter button.
This configuration drains a lot of energy.

Just wondering.
XRV

[Leather]

NO.

Most all Vision  (at least looking at the schematics) have the headlights on all times.

The headlight will turn off during start and then stay on.

The Brown wire has NOTHING to do with this.

IF   (BIG IF) there is a bike wired with lights to the Regulator it would be wired to the YELLOW wire which NOT ALL Visions have.

AGAIN THE POSSIBLE WIRE COMBOS ARE:


ALL VISION HAVE->

BLACK = GROUND
RED = POSITIVE +12 at BATTERY hot all the time.

------------------------------------

Maybe (some have).......

BROWN connected to battery +12 when ignition ON.  This does NOT power anything but is used to sense (measure)  the voltage at the ignition and controls ouput of regulator.

----------------------------------------------

Maybe (some have)......

YELLOW connected to lights.  WIll power lights only when engine running.

Hope this helps

[Dan_Byers]

Ron:
  The pic you linked to is that of a Seca 400. Vertical twin, chain drive with Vision styling sold in 1982. The tank's not swappable and all the styling cues came direct from the V design camp.

Dan