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Nylon screws

Discussion in 'The Garage' started by apox, Mar 1, 2011.

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  1. retiredgentleman

    retiredgentleman XS650 Guru Top Contributor

    They are separate.
     

    Attached Files:

  2. XSLeo

    XSLeo XS650 Guru Top Contributor

    On a 73 the stock regulator and the rectifier are seperate units.
    Even if you rewire the bike to simplify the harness you won't need the nylon screws if you use the stock reg and rec.
    If you are going to rewire everything, it would be a good time to upgrade from that old, unreliable mechanical reg to a solid state reg. Those mechanical regs work, but not very well. Even new the could over charge the battery if you ran at highway speeds much.
    The reg that RG shows is a good one. Using that one you won't need the nylon screws either. The solid state unit turns the rotor on and off quicker than the stock mechanical reg. This will help keep the rotor cooler. Cooler = Last longer.
    The rec he shows is much more efficient than the stock one. And don't cost much.
    You can probably buy the new parts, hook them up and sell the old parts and pay for the new parts.
    I know you just asked about the nylon screws, but using the old parts will let you down sooner or later. I would suggest doing the mods now while your down than have to get stuck somewhere and have the long push home.
    Leo
     
  3. Biddington

    Biddington XS650 Member

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    there the stock seperate reg and rectifier
     
  4. Biddington

    Biddington XS650 Member

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    thanks for the advice ill probably do the upgrade
     
  5. ducktoo1

    ducktoo1 XS650 Enthusiast

    Now, I'm confused. Have a 78 with reg rect combo from Mikes XS. Still have the stock stator rotor. Do I need nylon? If so, do I need to replace all four. If not, which ones?
    I've been without a bike since I crashed my Gold Wing 14 months ago. I''ve been resurecting this bitch for six months. The old rectifer took a crap 100 miles out. I just want to get a little riding in this season. I can do upgrades in the winter.
     
  6. retiredgentleman

    retiredgentleman XS650 Guru Top Contributor

    Nylon screws not required.
     
  7. ducktoo1

    ducktoo1 XS650 Enthusiast

    :thumbsup:Thanks.
    Been going thru the site, and checking on what I've done so far. Found a couple of things I hadn't thought of but it still ain't charging. Spending Saturday at it again. Maybe I'll find it hidden in the wiring.:banghead:
     
  8. retiredgentleman

    retiredgentleman XS650 Guru Top Contributor

  9. ducktoo1

    ducktoo1 XS650 Enthusiast

  10. retiredgentleman

    retiredgentleman XS650 Guru Top Contributor

    Curly's trouble shooting guide is written more for the 80 to 83 years. Since yours is a 78 there are some differences.

    He talks about grounding the green wire as a bypass.............OK for the 80 to 83, but wrong for the 70 to 79. For your 78 you need to put battery + voltage on the green wire (outer brush).
     
  11. ducktoo1

    ducktoo1 XS650 Enthusiast

    It is a 78, but I have an aftermarket solid state reg/rec.
     
  12. retiredgentleman

    retiredgentleman XS650 Guru Top Contributor

    Unfortunately the guide does not differentiate between the 70 to 79 years as compared to the 80 to 83 years. When the guide refers to a solid state rec/reg, it is talking about 80 to 83 years. With a 78, if you still have it wired as per the stock set-up, with the inner brush grounded, then you need to put battery+ on the green wire (outer brush).
     
  13. ducktoo1

    ducktoo1 XS650 Enthusiast

    That explains a lot. I tried that with a jumper today, but the bike took a stubborn spell, and wouldn't start so I could check results. Will try again tomorrow.
    Thanks
     
  14. ducktoo1

    ducktoo1 XS650 Enthusiast

    I ran jumper from the red white wire yesterday, and got an acceptable charge till I plugged in the yellow headlight wire. No problem, I'll get another source for the headlight. Question now, is there any problems with this? While testing I forgot to turn off the key for about five minutes, and noticed the ignition hot wire was warm to the touch.
    I'm getting ready to chopper wire, and don't want to carry over any problems from where I am now.
     
  15. JNizza92

    JNizza92 XS650 Enthusiast

  16. pamcopete

    pamcopete Ride.Enjoy.Life is Simple

    JNizza92,

    Whether or not you need the nylon screw mod has nothing to do with your ignition system. There are two kinds of voltage regulators for the XS650. The early mechanical regulators provided battery on the green wire brush with the other brush grounded. The later models regulator provides a ground on the green wire brush and the other brush goes to switched battery (brown wire). If you are using a late model regulator or an after market regulator that provides a ground on the green wire brush, then you have to isolate the grounded brush with nylon screws and apply brown wire voltage to that brush.
     
  17. XSLeo

    XSLeo XS650 Guru Top Contributor

    That ad doesn't say what it fits. It looks to be for an 80 up bike. If so then yes it needs the nylon screws to use on a 70-79 bike.
    I think they also sell a combo reg/rec that is a direct plug in for the 70-79 bikes. It would have two connecters on it, not just one and would not need the nylon screws.
    Leo
     
  18. JNizza92

    JNizza92 XS650 Enthusiast

  19. Derek2k3

    Derek2k3 XS650 Enthusiast

    Well, I'm working through my own charging issues, finally got the bike back after 5 years :yikes:

    First things first: '79 650, Black/Gold edition

    Had issues with this bike ever since I bought it in '04, was my daily driver (10 miles round trip) and dealt with charging issues since day 1.

    Had to put it away for various reasons in '07, finally got it back out and to a mechanic last month. He said my stator was shorted, so replaced that and I was "good to go."

    Well, I took it for a 30 minute ride yesterday, was ok. Then this morning took it on a 15 minute ride, basically died when I got back. Battery was only showing 9 volts, so I'm charging it now so I can go through Curly's/Ggggary's guide (THANKS!)

    However, before it was put up in '07 I had a rec/reg installed, which you can see below:
    [​IMG]

    Here's a shot of the brushes:
    [​IMG]

    I'm a little confused, do I need the nylon screws?
     
  20. 77xsbobber

    77xsbobber XS650 New Member

    I just bought a electrical disaster 77 650 I'm putting the pamco on it but was curious on this nylon screw install. The bike is a 77 but was already switched to the black box so do I still need the screws?
     

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