1. Dismiss Notice
  2. Hey Facebook people... We've created a group for XS650.com members to connect. Check it out!
    Dismiss Notice

TCI Replacement 2020 It Works

Discussion in 'The Garage' started by Team Junk, May 15, 2020.

  1. 313-Matt

    313-Matt XS650 Member

    Any recommendation on pigtail gauge needed? It's short, and I think I read in here that the coil needs 1A, so 18 should be enough?
    Or should I use the stock? I haven't measured it, but that appears to be in the 14/16 range.

    TIA -Matt
     
    MaxPete, Jim and itschrisb like this.
  2. Jim

    Jim Beyond the edge is the unknown. Here be Dragons XS650.com Supporter Top Contributor

    18ga is plenty big enough. 20ga would be fine current-wise... but I've found the molex pins don't crimp well to the 20ga unless you double the ends of the wire back on itself. Doubling back also seems to help on the 18ga as well.
     
  3. 313-Matt

    313-Matt XS650 Member

    GN250 box arrived today. (Goodness gracious Amazon is fast.) It appears that this one is "floating."
    2020-09-08_132013_GN250_module.jpg

    Thanks for the wire direction, Jim.
     
  4. itschrisb

    itschrisb XS650 Addict

    Okay I got my box in today and it’s “floating” so do I wire it according to this diagram or do I have to swap something? I also don’t have any of the original connectors so I’m going strictly off wire colors on this one but I believe I have them all sorted out.
     

    Attached Files:

    MaxPete and Jim like this.
  5. Jim

    Jim Beyond the edge is the unknown. Here be Dragons XS650.com Supporter Top Contributor

    Here, I added color coding.

    Pigtail Wiring.png
     
  6. itschrisb

    itschrisb XS650 Addict

    I don’t know how to upload videos but I got it running! It needs some fine tuning. It won’t stay running without the choke and it was back firing out of the carbs. Im waiting on a Honda MP08 coil to come tomorrow and I’m gunna throw some new plugs in it but it does run on the Gonzo box!

    I did have to reverse the pick ups. On my box I have black/white going to the top left and white/red going to bottom left. If you’re looking at the box itself with the notch facing up!

    what plugs does everyone like for these bikes?
     
    Last edited: Sep 9, 2020
    YamadudeXS650C, MaxPete and Jim like this.
  7. 313-Matt

    313-Matt XS650 Member

  8. jetmechmarty

    jetmechmarty What should I put here? XS650.com Supporter Top Contributor

    NGK BP7ES has always worked fine. That's what the bike came with. I'm good with it. I expect that's the popular choice, based upon what I've seen at the rallies.
     
    gggGary, Paul Sutton, MaxPete and 2 others like this.
  9. RonXS

    RonXS XS650 Addict

    Catching up on this thread... I only went back far enough to get a refresher on magnets ;)...
    I have not seen any info on the '79 and earlier ignitions... Does this look like it can be adapted to the points ignition bikes?
    No slam intended, just checking to see if I missed it.
    Keep up the good work, I love seeing reverse engineering in action... :thumbsup:
     
    gggGary, MaxPete, Jim and 1 other person like this.
  10. Jim

    Jim Beyond the edge is the unknown. Here be Dragons XS650.com Supporter Top Contributor

    I'm working up the details on a 79 and earlier conversion. Have a read here Ron.
     
    RonXS, gggGary and MaxPete like this.
  11. MaxPete

    MaxPete Lucille, Betty & Demi - I suggest but THEY decide. XS650.com Supporter Top Contributor

    OK OK OK - I am really worried about this pole flipping thing. I've got a lot of planning to do in the next 200,000 years...sh!t. :cussing:

    ...and I was hoping to take the weekend off.

    Pete
     
  12. gggGary

    gggGary I'm listening, change my mind XS650.com Supporter Top Contributor

    They claim the pole shift is ALREADY a 100thou or so overdue and the magnetic pole shift is rapidly increasing.
    I took apart all my compasses and repainted the pointers cuz you gotta get ahead of this stuff.
    Wonder how I should describe this in the Piper's logbook.
    PS nicely annotated wiring diagram Jim, like the revision date. I printed it out and am updating my service manuals.
     
  13. Jim

    Jim Beyond the edge is the unknown. Here be Dragons XS650.com Supporter Top Contributor

    Thanks.
    Got my paint at the ready. Soon as I see Geese migrating North for the winter.... Im'a breakin' it out. :rolleyes:
     
  14. Paul Sutton

    Paul Sutton Still Looking Good Top Contributor

    Never ever trust a magnet :hellno:.
     
  15. gggGary

    gggGary I'm listening, change my mind XS650.com Supporter Top Contributor

  16. Magnets and magnetism, right? Well then, keeping with the thread.......
     
    TwoManyXS1Bs, Paul Sutton and Jim like this.
  17. itschrisb

    itschrisb XS650 Addict

    Okay so update on my bike. Interestingly enough my bike would fire and run, like crap, with the pick ups reversed. Out of curiosity I switched the pick up wires to the original orientation and it runs perfect. Something to keep in mind for other people.
     
    nj1639, Jim and RonXS like this.
  18. RonXS

    RonXS XS650 Addict

    See there you go... The XS650 group already working on a hack...
    I have it from a reliable source that this whole magnetism flipping thing is being orchestrated by a cabal of compass manufacturers. Just think how much money is on the table if all compass' were obsolete.... just say'n. :whistle:
     
  19. Paul Sutton

    Paul Sutton Still Looking Good Top Contributor

    Magnetism Flipping: Must be true, all was explained without mentioning the Aliens...:laughing:
     
  20. 313-Matt

    313-Matt XS650 Member

    So I have some preliminary success with the GN250 module for my 81. Wired exactly as Jim shows (above.) Starts and Idles. Timing exactly on the idle mark. So far so good.

    I am jetted for my exhaust and K&N filters in stock airboxes. I haven't mounted the module yet, so was running with the bare carbs. It won't idle without enricheners (choke) without the airboxes. I fooled enough to get some center stand races going and saw that the advance kicked in.

    So the GN250 module only has a limited amount of advance. (30 degrees?) Before I start filing my pickups, what would the downsides be with running with low advance for a while to continue the experiment?

    Thanks, guys for all the hard work!

    Matt
     
    jetmechmarty, YamadudeXS650C and Jim like this.

Share This Page