1977 XS650 Replacement Reg/Rec

[dillon0990]

All, I have read many posts about this, but just need a little clarification. Also, most links are broken in the old posts.

On a stock charging system 1977 XS650 can I buy the following to replace the original regulator and rectifier? I am wiring from scratch.

https://www.amazon.com/gp/product/B01JKRIPUK/ref=ox_sc_act_title_2?smid=A3HMB6GLG0WJ17&psc=1
https://www.amazon.com/gp/product/B000C8053C/ref=ox_sc_act_title_1?smid=ATVPDKIKX0DER&psc=1

Since mine was stock with separate units, I do NOT need to do nylon screws in the brushes, correct?

I lost the old rectifier but I have the original regulator. Should I try using it or just scrap it and use the attached VR115? I did a top end rebuild on this and turned into a "brat" style bike. The bike has not ran in 15+ years. Like I said, I am wring from scratch using stock alternator and a new electronic ignition "XS charge" from mikes. I want to make it easy to wire and hopefully start up easy. I also bought one of the small 0.8AH batteries since this is kick only.

If I go with the VR-115, black goes with black, green with green, and the other two wires go together to brown correct?

 

[Jim]

Yes, those two are what you need.
Correct, you do not do the nylon screw mod.
Your wire colors sound correct. Lets see if someone else will chime in and verify.

 

[Mailman]

Let me see what photos I have archived.

 

[Mailman]

VR115 Wiring instructions
From 5 Twins
Posts number #4 and 5
http://www.xs650.com/threads/going-back-to-stock-charging-system.50416/#post-522888

My experience,
Starting at post # 331,
http://www.xs650.com/threads/my-60th-birthday-present.47639/page-17

 

[5twins]

You don't need a 100 amp rectifier, that's way overkill. Most of us use a 30 to 50 amp unit. If you search around, you may find one of those cheaper.

 

[Jim]

Guess I didn't look close enough... yeah... 100 amps is way overkill.
Here's a Windy Nation 35amp for ten bucks. It's the one I used.

 

[Mailman]

I might as well throw this in, my rectifier install, also with great info from 5T
Posts # 341 thru 348
http://www.xs650.com/threads/my-60th-birthday-present.47639/page-18

 

[dillon0990]

You guys rock!

At the alternator plug there is the dark blue that goes to the engine. I think neutral light. What is the light blue wire for in the plug and what is the yellow wire that is separate from the plug?

 

[dillon0990]

Guess I didn't look close enough... yeah... 100 amps is way overkill.
Here's a Windy Nation 35amp for ten bucks. It's the one I used.

I went ahead and ordered this one. Found it for $12 on Amazon with free shipping

 

[Jim]

Yellow is alternator output to the safety relay. Neutral should be a light blue. Don't recall ever seeing a dark blue....

 

[dillon0990]

Yellow is alternator output to the safety relay. Neutral should be a light blue. Don't recall ever seeing a dark blue....

I might have made the dark blue one up. Need to double check. So all wire harness I see show yellow capped off. Do I cap it for my setup?

 

[Jim]

Do I cap it for my setup?

Depends on what you want your bike to be... it deactivates the starter, and turns the headlight on.

 

[Mailman]

That blue wire should definitely be your neutral wire. This was my original wire.

That wire was brittle and broke off, so I soldered another wire on that was a darker blue.

 

[dillon0990]

I double checked and it was just the one blue wire for neutral light . Since I’m going kick only and putting lights on toggle I will cap the yellow. Hopefully I can get this wired up in next week or two. May follow up for questions and to report how it goes.

 

[650Skull]

Bit late to the party...........5Twins posted up information the TX/XS500 Rectifiers. They are sealed units, not open like the XS650's), and can be got quite cheep and look the part............
XS500 ebay list..... https://www.ebay.com/sch/i.html?_from=R40&_trksid=m570.l1313&_nkw=yamaha+xs500+rectifier&_sacat=0&LH_TitleDesc=0&_osacat=0&_odkw=yamaha+xs/TX500+rectifier
XS500 Rectifier.....cheap...https://www.ebay.com/itm/76-Yamaha-...198862?hash=item3f7e8e5d4e:g:tJ0AAOSw1~JZN9ru

 

[5twins]

That last one you listed can't be a rectifier, it only has 3 wires. I think it's a regulator.

 

[650Skull]

That last one you listed can't be a rectifier, it only has 3 wires. I think it's a regulator.

Apologies........i didn't even look at the wires..........just thought, (and we know what thought thought), it was an earlier model rectifier............removed link

 

[dillon0990]

This what I bought. My guess is dc plus is power in, dc - is ground. The three ac are my white wires. Correct?

 

[Jim]

My guess is dc plus is power in, dc - is ground. The three ac are my white wires. Correct?

DC+ is power out to the battery (red wire). Correct on the rest...

 

[dillon0990]

Good point, power out not in. Thanks!