NOS ignition pickup coil - how bad do you want it?

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  • LAB3
    XSive Maximus
    • May 2022
    • 677
    • Traveling the U.S. with no permanent address

    #1

    NOS ignition pickup coil - how bad do you want it?

    Just came across an eBay ad for an NOS ignition pickup coil set, we're talking crazy money here folks!

    Find many great new & used options and get the best deals for Genuine Yamaha NOS OEM 2H7-81671-10 BASE PICKUP at the best online prices at eBay! Free shipping for many products!
    1980 XS1100G

    Intelligent people discuss ideas, average people discuss events, petty people discuss other people.
  • DEEBS11
    XS-XJ Guru
    • Feb 2023
    • 1384
    • Connecticut

    #2
    Wow, those are nice.

    Comment

    • LAB3
      XSive Maximus
      • May 2022
      • 677
      • Traveling the U.S. with no permanent address

      #3
      For the money I'd be tempted to go with this.

      Digital ignition system for Yamaha XS1100, replacement for the original electronic ignition and advance unit. The vacuum advance won't be used any longer. Most models have a 15 mm shaft diameter. The 2H7 and 2H9 models have a 14 mm shaft...
      1980 XS1100G

      Intelligent people discuss ideas, average people discuss events, petty people discuss other people.

      Comment

      • DEEBS11
        XS-XJ Guru
        • Feb 2023
        • 1384
        • Connecticut

        #4
        Hi LAB, I'm not sure if that unit would survive the environment of heat and cold more that a few years. It has never been tested because there is no documentation other than a sales ad. Maybe it would last. Maybe it wouldn't. The original equipment has lasted up to 45 years. I would spend the money on the real deal.

        Comment

        • LAB3
          XSive Maximus
          • May 2022
          • 677
          • Traveling the U.S. with no permanent address

          #5
          My electronics training was a half day high school / half day trade school in the late 70's and needless to say there's a lot I'm not current on.

          Seems to me that there's nothing particularly unique about pickup coils, only in how they mount. Could there be a doable swap for the coils alone and not the backing plate out there?

          How about going to old fashioned points? Is that idea worth entertaining?
          1980 XS1100G

          Intelligent people discuss ideas, average people discuss events, petty people discuss other people.

          Comment

          • LAB3
            XSive Maximus
            • May 2022
            • 677
            • Traveling the U.S. with no permanent address

            #6
            Looks like the FJ1100 ignition pickup and Ignitor box is a direct swap, this seems like the most affordable option to replace the moving vacuum advance plate!

            Are any of you familiar with the XS1100 ignition system? The Achilles heel of that bike is the flexing wires in the mechanical advance. Does the...
            1980 XS1100G

            Intelligent people discuss ideas, average people discuss events, petty people discuss other people.

            Comment

            • speedlimit85
              XStremely XSive
              • Jan 2017
              • 420
              • Gainesville, Fl.

              #7
              nice nos https://www.ebay.com/itm/134581933493
              80 G

              Comment

              • DiverRay
                Moderator
                • Nov 2004
                • 7600
                • Star, IDAHO

                #8
                Don't forget, the crimp on the wire guide is the main problem with the pick up coils! Yamaha didn't leave any room for movement, and that is why the wires break. I tried to point that out to them in 1978 when the wires on my XS did that. But working in a small town dealer, and not going through training at the "factory" school, they didn't change anything....
                Ray Matteis
                KE6NHG
                XS1100 E '78 (winter project)
                XS1100 SF Bob Jones worked on it!

                Comment

                • LAB3
                  XSive Maximus
                  • May 2022
                  • 677
                  • Traveling the U.S. with no permanent address

                  #9
                  I've replaced mine with silicon insulated 100 strand 18ga wire and the bike is running top notch, I just don't want to have to deal with it again! You know how electrical problems work, they tend to show up at 4am in a torrential rain storm.
                  1980 XS1100G

                  Intelligent people discuss ideas, average people discuss events, petty people discuss other people.

                  Comment

                  • speedlimit85
                    XStremely XSive
                    • Jan 2017
                    • 420
                    • Gainesville, Fl.

                    #10
                    Originally posted by DiverRay
                    Don't forget, the crimp on the wire guide is the main problem with the pick up coils! Yamaha didn't leave any room for movement, and that is why the wires break. I tried to point that out to them in 1978 when the wires on my XS did that. But working in a small town dealer, and not going through training at the "factory" school, they didn't change anything....
                    What to do then to help the wires last with new pick up coils?
                    80 G

                    Comment

                    • DiverRay
                      Moderator
                      • Nov 2004
                      • 7600
                      • Star, IDAHO

                      #11
                      Originally posted by speedlimit85

                      What to do then to help the wires last with new pick up coils?
                      Leave the crimps a little loose so the wires can slide a bit. I try to keep them as a large circle just bigger than the braided sheathing. If the wires are able to move over about 2" they don't seem to beak as often. Do NOT open it so much that the wire can slip out of the crimp, as it can then catch in the spinning parts and break.
                      Ray Matteis
                      KE6NHG
                      XS1100 E '78 (winter project)
                      XS1100 SF Bob Jones worked on it!

                      Comment

                      • DEEBS11
                        XS-XJ Guru
                        • Feb 2023
                        • 1384
                        • Connecticut

                        #12
                        I just picked this one up from eBay $80.00. Bike had about 18K miles on it. Have you guys ever removed and replaced the tamper proof screws that hold the timing setting (1980+)? Can you use conventional metric cap screws once the old "snapped off" screw is extracted?

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                        Last edited by DEEBS11; 07-02-2023, 04:10 AM.

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                        • LAB3
                          XSive Maximus
                          • May 2022
                          • 677
                          • Traveling the U.S. with no permanent address

                          #13
                          Originally posted by DEEBS11
                          Have you guys ever removed and replaced the tamper proof screws that hold the timing setting (1980+)? Can you use conventional metric cap screws once the old "snapped off" screw is extracted?

                          Do you really NEED to mess with those tamper proof screws? Seems to me you can remove the entire plate and the round metal drum it sits on then swap it into place with your existing one.

                          1980 XS1100G

                          Intelligent people discuss ideas, average people discuss events, petty people discuss other people.

                          Comment

                          • DEEBS11
                            XS-XJ Guru
                            • Feb 2023
                            • 1384
                            • Connecticut

                            #14
                            No LAB3, everything is running fine. Just a tech question for future reference. I like the idea of just replacing the guts and leaving the plate.

                            Comment

                            • speedlimit85
                              XStremely XSive
                              • Jan 2017
                              • 420
                              • Gainesville, Fl.

                              #15
                              Yes. I just did this. After drilling out the tamper proof bolts and marking the timing location, I replaced with bolts from NAPA to match the thread and length.

                              If you replace the whole thing you will need to time it.

                              If you remove the 3 screws with the pick-up coils on it and just replace that part, then the bolts do not need to be drilled.

                              I used the original timing marked part and took apart the rest to use the new parts.
                              80 G

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