AHOTHOMAS0
XS650 Member
This green wire coming from the rectifer, where does it go. I am kinda at a loss here I got it wired to the point that I can get the starter going and this wire is confusing me
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Identifing a wire
- Thread starter AHOTHOMAS0
- Start date
Go to the tech section. In electrical you will find schematics for most models. If I recall correctly there is only one function per color. For my 77 brown is +12v. Pink is horn circuit. Etc.
Please give more info PMA ? what year and /or a picture of the overview
examples there
https://www.xs650.com/threads/some-wiring-diagrams.61/
G can be green ..?? to Brushes ???????????????????
examples there
https://www.xs650.com/threads/some-wiring-diagrams.61/
G can be green ..?? to Brushes ???????????????????
AHOTHOMAS0
XS650 Member
I don't know a lot about bikes so if what I'm saying doesn't make sense lemme know.
It's got a points system, no PAMCO I think. Its a 1978. What do you mean overview?
From the tech section. Thanks to Skull for this.
Well that's not the stock rectifier looks like an aftermarket solid state combo regulator rectifier. Whether it it's the right one for your alternator brush set up is anyone's guess. once you have it figured out WHAT it is, we can start untangling how it needs to be wired. There's usually some sort of ID tag with numbers on it. Maybe even who made it.
We should see a pic inside the round cover on the lh end of the crank too.
Speaking of guessing; you bought this bike as a "used to run" project?
We should see a pic inside the round cover on the lh end of the crank too.
Speaking of guessing; you bought this bike as a "used to run" project?
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There are three shades of green. See the alternator circuit in the schematics.
AHOTHOMAS0
XS650 Member
I will get all info that this afternoon. It does run right now actually. I have it wired that far. The problem atm is that the battery doesn't charge
AHOTHOMAS0
XS650 Member
AHOTHOMAS0
XS650 Member
So the green wire should go to ground?
^It's possible it's running off the battery and your pma isn't doing anything at all. Unless somebody recognizes the pma and knows something about that particular one, try to find some markings on it to let you know who made it, and eventually a schematic for its installation. At that point pma people here can help you wire it. If you just find some numbers on it you might be able to google them + "pma" and find out what it is. Last resort send a pic to any pma manufacturer for xs650 and they'd probably recognize it if they want to.
Also, it's not extremely complicated so if you figure out how pmas work you could find what's what using a meter. Internal schematic of generic motorcycle pma would point you in the right direction.
Also, it's not extremely complicated so if you figure out how pmas work you could find what's what using a meter. Internal schematic of generic motorcycle pma would point you in the right direction.
Look at the wiring diagram in Post #5. You will find you wiring diagram there. Find the green wire. In the diagrams that I looked at, green was part of the charging circuit. I don't know what model you have so you will have to identify that. Do not ground that wire until you have identified it. The PO seems to have preserved the green pigtail to steer you in the right direction.
I cleaned up that diagram when i posted it..............It only shows a red, (power), and black, (earth/ground) on the reg/rect........No Green................. MikesXS sells his PMA Reg/Rect having 3 white coming from the PMA to the Reg/Rect out on a Red, (power), Black, (connects to Red wire) and a green, (Earth/Ground) wire,
You need to confirm what/how many, wires you have coming from your Reg/Rect to your harness
AHOTHOMAS0
XS650 Member
This was incredibly helpful, the bike is now running and charging the battery correctly!! My electric starter is finally working!!!
Bountiful
XS650 Enthusiast
Hi guys, probably a stupid question but here goes anyway.. I was investigating the loom on my ‘77D to update my regulator & rectifier and I had noticed one of the 3 connector blocks under my seat has just one single green wire looped around itself. I have checked diagrams but I struggle with this kinda thing. What part of the loom is that connection for? and why would it have a single wire looped back into the block?!
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Its been a long time
Doesn't know nothing.
That looks to me like a reserve lighting device eliminator jumper wire. Nothing to do with the alternator or charging system.
The plug with green, black and brown wires shown there also. That goes to the alternator.
Below picture shows the jumper wire I made the other day to eliminate the reserve lighting device.
Bountiful
XS650 Enthusiast
Thanks for your help! It seems it is meant to be there then if you’ve also used a jumper wire; Could you possibly enlighten me on what the reserve lighting device is for?
Bountiful
XS650 Enthusiast
I’ve just found an article from Dogbunny
