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

Jim's 1980 SG Restoration. And Yeah.... A Few Mods.

Discussion in 'The Garage' started by Jim, Sep 26, 2017.

  1. TwoManyXS1Bs

    TwoManyXS1Bs BBQ Hunter Top Contributor

    Mmmmmmmmm.
    Frozen doughnuts...
     
    Jim likes this.
  2. Lookin' at yer work, I think you should take fix the knee yourself. I can't imagine you can find a doctor with your level of skill and pride in your work.
     
  3. MaxPete

    MaxPete Life with Lucille...I suggest, she decides. Top Contributor XS650.com Supporter

    ...and I can be the anaesthetist - my students tell me that my lectures can put anybody to sleep!

    Pete
     
  4. azman857

    azman857 '80 XS 650SG Rider Top Contributor

    Pete, I can't believe that. Perhaps it's the subject matter and not the speaker.
     
    Last edited: Jun 28, 2019
  5. MaxPete

    MaxPete Life with Lucille...I suggest, she decides. Top Contributor XS650.com Supporter

    Hmmmm...maybe Rudi. I mean, even I find that bolt preload and Hertzian stress calculations just don’t have that “zing” they used to have for me.
     
  6. Jim

    Jim The thrill of victory and da agony of da feet. Top Contributor XS650.com Supporter

    Recommendations?
    So... been pondering this since the ride with the new reg/rec. Prior to replacement, I was getting a little off idle stumble... and periodically a fair bit of poppin' and sputterin' when I grabbed a handful of throttle.... maybe a half--- 3/4 throttle. But it wasn't consistent. The off idle stumble was consistent. Gary suggested the washer under the needle fix and that worked a treat for off idle... cleared it right up. The odd part is the popping and wheezing with big pulls on the throttle.... sometimes it did it, and sometimes it powered up just like it's supposed to. I didn't clue into the correlation at the time it was happening (and I'm still not certain), but I'm starting to think the sputterin' was happening at the same time the charging system would drop out. It never sputtered even once during the hour and a half ride ... and I've had her out several times since. No amount of yanking and pulling on the throttle will cause even the slightest bit of misbehaving.... and other than the needle washers, the carbs haven't been touched since initial setup. Well, actually I had to redo the float heights also... but that didn't help. Only change was the reg/rec. Yeah... I'm gettin' long winded here, I'll cut to the chase...

    I suspect my 40yr. old TCI coil was breaking down under load. At 14.5V, it could handle things... but not with just the battery. I've changed a few coils for breaking down under load and thinking back, that's what this feels like. It's 40yrs old... perhaps it's time to give it a rest.

    So anyway.... What do you guys recommend as a replacement coil for the TCI system?
     
  7. Mailman

    Mailman Hardly a Guru Top Contributor

    Is it a dual output coil?
     
    Jim likes this.
  8. Jim

    Jim The thrill of victory and da agony of da feet. Top Contributor XS650.com Supporter

  9. Mailman

    Mailman Hardly a Guru Top Contributor

    This is what came with both of my Pamco ignitions. Seems like a good coil, and I know they’re available on EBay.
    Others will have their favorites I’m sure.
    469B01E5-CA22-43AB-91A3-8C297D615AFA.jpeg
     
    MaxPete likes this.
  10. Jim

    Jim The thrill of victory and da agony of da feet. Top Contributor XS650.com Supporter

    Well. that's the same primary resistance as the TCI coil, so it would be compatible. Thanks Bob.
     
    MaxPete and Mailman like this.
  11. MaxPete

    MaxPete Life with Lucille...I suggest, she decides. Top Contributor XS650.com Supporter

    That’s the coil I have on Lucille and she runs well with it.

    I did see a photo of a slick setup using a coil from a Gold Wing (dual output) and because the secondary connectors were along the axis of the coil (90 deg. to those on the Emgo shown above), it would be more compact.

    I don’t recall where the photo is nor the year of the GL - but it was a Honda coil.

    Pete
     
    Jim likes this.
  12. Mailman

    Mailman Hardly a Guru Top Contributor

    I seem to remember Scott saying he buys used Honda coils because he said they are inexpensive and well built.
     
    MaxPete and Jim like this.
  13. Jim

    Jim The thrill of victory and da agony of da feet. Top Contributor XS650.com Supporter

    Thanks Pete. I remember someone talking about a Honda 4 coil. That's the one I want to find out more about.
     
    MaxPete likes this.
  14. MaxPete

    MaxPete Life with Lucille...I suggest, she decides. Top Contributor XS650.com Supporter

    Yup - and it would fit much better than the “sideways” EMGO.
     
    Jim and Mailman like this.
  15. Mailman

    Mailman Hardly a Guru Top Contributor

    Agreed, there’s not much room in the gas tank tunnel for that particular coil.
     
    Jim and MaxPete like this.
  16. mrtwowheel

    mrtwowheel Honda Etched On Brain Top Contributor

    https://www.ebay.com/itm/1989-89-Ho...354766?hash=item1a6a1bc60e:g:~-sAAOSwUV9Wpnhx

    This is the Honda coil used on the GL1500. I think it's marked MP08. It has a great reputation on the Honda forums. The two generations of Honda coils before these had very bad reputations. It was used on about 70 different Hondas. I usually pay about $10 each for them, sometimes less when I buy a set of three. They are small, compatible with your TCI ignition. Very reliable compared to most aftermarket coils.

    This is a good seller, I've bought a lot from them.
     
    Mailman and Jim like this.
  17. MaxPete

    MaxPete Life with Lucille...I suggest, she decides. Top Contributor XS650.com Supporter

    Can the wires be changed easily Scott?

    It appears that the secondary terminals are like the ones on pre-TCI Yamaha coils where you can “screw in” a new plug wire.
     
    Jim likes this.
  18. mrtwowheel

    mrtwowheel Honda Etched On Brain Top Contributor

  19. mrtwowheel

    mrtwowheel Honda Etched On Brain Top Contributor

    Yes the wires can be changed easily, designed for 7mm wire, screw cap, rubber sealing compression type. I get them with the wires attached, then I know that the caps and seals are there.
     
    MaxPete, Mailman and Jim like this.
  20. Jim

    Jim The thrill of victory and da agony of da feet. Top Contributor XS650.com Supporter

    Thanks for the info Scott. That's what I was looking for.
    Found this thread interesting. Apparently a Harley coil will also work.
     

Share This Page