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Plug caps FYI

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  • #1

    Plug caps FYI

    Just ordered new caps directly from NGK (ngk.com) for $1.90 each plus shipping. $10.68 total.
    Bye the bye, I opted for the 1K resistor version as they only offer 1 style in non resistor and they look a bit short for the inboard cylinders. And I can always remove the resistor if I want in the future.
    '78 E "Stormbringer"

    Purrs like a kitten, roars like a lion, runs like a gazelle (being chased by a cheetah).

    pics http://s1209.photobucket.com/albums/...tormbringer45/
    Tags: None
  • #2
    Links and or part numbers?
    Nathan
    KD9ARL

    μολὼν λαβέ

    1978 XS1100E
    K&N Filter
    #45 pilot Jet, #137.5 Main Jet
    OEM Exhaust
    ATK Fork Brace
    LED Dash lights
    Ammeter, Oil Pressure, Oil Temp, and Volt Meters
    Green Monster Coils
    SS Brake Lines
    Vision 550 Auto Tensioner

    In any moment of decision the best thing you can do is the right thing, the next best thing is the wrong thing, and the worst thing you can do is nothing.

    Theodore Roosevelt

    Comment

    • #3
      Hey again Nate,

      It's amazing what's on our site with a little looking!

      http://www.xs11.com/forum/showthread.php?t=5954

      They shouldn't have changed their numbering/lettering process, so it's now just the lnk: www.ngk.com !

      But more info...in the FLASH window on the right scroll thru the 3rd option their reverse application lookup so you can look for PLUG CAPS, and not just by vehicle type/model type of search that they default to. You can also click on the reverse application lookup just under their SEARCH function window.

      Nice to see being able to order directly from NGK!

      T.C.
      T. C. Gresham
      81SH "Godzilla" . . .1179cc super-rat.
      79SF "The Teacher" . . .basket case!
      History shows again and again,
      How nature points out the folly of men!

      Comment

      • #4
        I was more wondering which ones he got specifically since he said he got something out of the ordinary.

        But thank you TC, I didn't know that post existed.
        Nathan
        KD9ARL

        μολὼν λαβέ

        1978 XS1100E
        K&N Filter
        #45 pilot Jet, #137.5 Main Jet
        OEM Exhaust
        ATK Fork Brace
        LED Dash lights
        Ammeter, Oil Pressure, Oil Temp, and Volt Meters
        Green Monster Coils
        SS Brake Lines
        Vision 550 Auto Tensioner

        In any moment of decision the best thing you can do is the right thing, the next best thing is the wrong thing, and the worst thing you can do is nothing.

        Theodore Roosevelt

        Comment

        • #5
          In my thread starter I mentioned there was just one option for the non- resistor cap available and I opted for the 1K ohm version of which there are two pn's. They also offer about two dozen variations on the 5K ohm flavor.
          The one I chose was LB01EP over the LB01E only because the specs called out the EP as being waterproof whereas the "E" made no such claim, but otherwise they both seemed identical.
          I will post an update regarding fitment as soon as I get them, (standard USPS mail) maybe by the end of the week.

          Once I have them installed I will be able to conclude my experiment regarding resistance loads, standard non-resistor plugs, and 5K iridium plugs (cant seem to find iridium plugs in a non-resistor species).
          Thus far with the caps I have that vary from 4.7K to 7.2K, the iridium plugs provide a smoother and less fumy idle but with a cold start exhaust backfire on full enrichment, and standard non resistor plugs seem to provide a noticeable power advantage but a fumier and less stable idle but with diminished enrichment backfire. I'm hoping to find a happy medium in the trade off between spark energy and duration.
          At the very least, I'll have fresh caps with a more uniform spread of resistance. The backfire (again only on full enrichment) is coming from the right bank which also has the PO installed highest resistance cap.
          '78 E "Stormbringer"

          Purrs like a kitten, roars like a lion, runs like a gazelle (being chased by a cheetah).

          pics http://s1209.photobucket.com/albums/...tormbringer45/

          Comment

          • #6
            New caps fit perfect, and have almost eliminated the full "choke" backfire. I'm going to try to adjust that out then I'll return to the iridiums again for another try. Will keep you posted...
            '78 E "Stormbringer"

            Purrs like a kitten, roars like a lion, runs like a gazelle (being chased by a cheetah).

            pics http://s1209.photobucket.com/albums/...tormbringer45/

            Comment

            • #7
              Verdict is in...

              The iridium plugs get along just fine now with the new 1K caps. Got my smoother idle back, and this time with no discernible loss of power. I guess 10K plus of resistance is just a bit much for these original coils.

              Now to see if there is a change in fuel mileage. Was getting ~47 MPG last season...
              '78 E "Stormbringer"

              Purrs like a kitten, roars like a lion, runs like a gazelle (being chased by a cheetah).

              pics http://s1209.photobucket.com/albums/...tormbringer45/

              Comment

              • #8
                Originally posted by ManagerMike View Post
                Now to see if there is a change in fuel mileage. Was getting ~47 MPG last season...
                I would like to know how you get 47 MPG!!!?!?!??!
                Nathan
                KD9ARL

                μολὼν λαβέ

                1978 XS1100E
                K&N Filter
                #45 pilot Jet, #137.5 Main Jet
                OEM Exhaust
                ATK Fork Brace
                LED Dash lights
                Ammeter, Oil Pressure, Oil Temp, and Volt Meters
                Green Monster Coils
                SS Brake Lines
                Vision 550 Auto Tensioner

                In any moment of decision the best thing you can do is the right thing, the next best thing is the wrong thing, and the worst thing you can do is nothing.

                Theodore Roosevelt

                Comment

                • #9
                  Originally posted by natemoen View Post
                  I would like to know how you get 47 MPG!!!?!?!??!
                  'I could tell you, but I'd have to kill you'
                  But seriously, almost all my riding is commuting via surface streets, I'm not punching a hole in the air at 70+ mph. That, and a small windscreen to keep my chest from pretending its a drogue chute...
                  '78 E "Stormbringer"

                  Purrs like a kitten, roars like a lion, runs like a gazelle (being chased by a cheetah).

                  pics http://s1209.photobucket.com/albums/...tormbringer45/

                  Comment

                  • #10
                    Originally posted by natemoen View Post
                    I would like to know how you get 47 MPG!!!?!?!??!
                    I do it by plug readings at every level of riding after I have set the the best I can with the tools available. Requires more than a few set of plugs and ample time to check them out. High speed chops can not be done in lower gears as the motor is not working hard enough.
                    Idle checks must be done after a ride that has been run high on the rpm scale for a while. Run your bike down the highway for 30 miles and then slow down to a natural stop as if you have reached your destination. Then let the bike idle for maybe 2 minutes and shut it off. Now read your plugs. I bet you will find they are not that golden tan color you want.
                    Thing is that we all try to set everything up before we ride so it performs great. The bike will tell you what it needs and then it will perform for you. There is no magic wand to wave over a machine that will do the little extra you will put into a bike.
                    The bike talks to you at every motion. The bike will tell you if a tire is low or a bearing needs replacing if you listen to it. It is capable of easily attaining 47 MPG. Mine is doing 48 miles per Yankee gallon consistently and that is with 10% ethanol fuel. It is not a quick "I can do this tonight" thing but a little time spent you can get mileage out of these ladies without too much effort.
                    Not to mislead anyone but if you have to ask what "triple clean" is then you will never attain high mileage. (not meaning you Nate). Thing is that tuning a bike is more than a dyno or seat of the pants thing. Tuning must be done carefully and over a few different rides to be complete. Once achieved it is hard to bugger it up as long as clean consistent fuel is used. While YMMV that is how I have bikes that run well and get good mileage.
                    2-79 XS1100 SF
                    2-78 XS1100 E Best bike Ever
                    80 XS 1100 SG Big bore kit but not fully running yet.
                    Couple of more parts bikes of which 2 more will live!

                    Comment

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