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  • #1

    Spark plugs -- which "version" of BP6ES?

    Hello all,
    So I'm trying to get my 79XS1100SF going again after it's been sitting for a bit. I fired it up and it's running a little rough, so I thought I'd start by changing the plugs.

    I looked at the plugs that I have in it, and they're labeled as NGK BP6ES. So I ordered some more BP6ES plugs for it which arrived today. But looking at the plugs I'm beginning to think that I might not have the correct "version" of the BP6ES.

    I didn't even realize there was more than one way this plug was made... but apparently there is? The part number that I got with my recent order is 4007, and from what I can tell, it looks like these are manufactured with a non-removal terminal cap. Either that or I need to crank on it a whole lot more to unscrew it...

    Is there more than one version / part number of the BP6ES plug from NGK? If so, what's the correct one that I should be looking for for my XS?

    (or do I just need to put a pliers on the terminal cap and crank harder? haven't done that yet for fear of breaking the plug...)

    Thanks!
    Tags: None
  • #2
    Jof

    I say crank away with as much care as possible but it should unscrew. That is all I use with my bike and everyone I have ever purchased did. I am not aware of any new versions that don't.
    2 - 80 LGs bought one new
    81 LH
    02 FXSTB Nighttrain
    22 FLTRK Road Glide Limited
    Jim

    Comment

    • #3
      Originally posted by JofCoRe View Post
      Hello all,
      So I'm trying to get my 79XS1100SF going again after it's been sitting for a bit. I fired it up and it's running a little rough, so I thought I'd start by changing the plugs.

      I looked at the plugs that I have in it, and they're labeled as NGK BP6ES. So I ordered some more BP6ES plugs for it which arrived today. But looking at the plugs I'm beginning to think that I might not have the correct "version" of the BP6ES.

      I didn't even realize there was more than one way this plug was made... but apparently there is? The part number that I got with my recent order is 4007, and from what I can tell, it looks like these are manufactured with a non-removal terminal cap. Either that or I need to crank on it a whole lot more to unscrew it...

      Is there more than one version / part number of the BP6ES plug from NGK? If so, what's the correct one that I should be looking for for my XS?

      (or do I just need to put a pliers on the terminal cap and crank harder? haven't done that yet for fear of breaking the plug...)

      Thanks!
      BPR6ES V-Power is only one in that series that is a fixed end(normally for automotive applications).
      81H Venturer1100 "The Bentley" (on steroids) 97 Yamaha YZ250(age reducer) 92 Honda ST1100 "Twisty"(touring rocket) Age is relative to the number of seconds counted 'airing' out an 85ft. table-top.

      Comment

      • #4
        All BP6ES plugs should have the readed terminal... I think there is another character that would designate a solid terminal... having trouble finding what it would be, its been a while. Just look at the very end of the terminal, it should be obvious if it is threaded or not because you eill see the end of the threaded stud inside the center of the terminal.
        '79 XS11 F
        Stock except K&N

        '79 XS11 SF
        Stock, no title.

        '84 Chevy K-10 "Big Blue"
        GM 350, Muncie SM465, NP208, GM 10 Bolt with 3.42gears turnin 31x10.5 Baja Claws

        "What they do have is an implacable, unrelenting presence and movement that bespeaks massive power lurking behind paint and chrome. They don't wail like a screeching ninja, the don't rumble like a harley. They just growl like a spactic, stressed out badger waiting to rip your face off and eat your soul." Trainzz~RIP~

        Comment

        • #5
          Yup, first time buying BP7ES's on my own (XS750), and I took them right back claiming he gave me the wrong ones. It was at that point he gave me a dumb look and unscrewed the cap with his teeth. It was an "ahh . . ." Moment.
          1979 XS1100F
          2H9 Mod, Truck-Lite LED Headlight, TECHNA-FIT S/S Brake Lines, Rear Air Shocks, TKAT Fork Brace, Dyna DC-I Coils, TC Fuse Block, Barnett HD Clutch Springs, Superbike Handlebars, V-Star 650 ACCT, NGK Irridium Plugs, OEM Exhaust. CNC-Cut 2nd Gear Dogs; Ported/Milled Head; Modded Airbox: 8x8 Wix Panel Filter; #137.5 Main Jet, Viper Yellow Paint, Michelin Pilot Activ F/R, Interstate AGM Battery, 14MM MC, Maier Fairing, Cree LED Fog Lights.

          Comment

          • #6
            Originally posted by WMarshy View Post
            All BP6ES plugs should have the readed terminal... I think there is another character that would designate a solid terminal... having trouble finding what it would be, its been a while. Just look at the very end of the terminal, it should be obvious if it is threaded or not because you eill see the end of the threaded stud inside the center of the terminal.
            when i look at the end of the terminal on these, it looks like all one piece. No threaded stud inside, just metal.

            After posting my original message, I tried unscrewing it again with pliers to no avail. Pliers are scoring up the outside of the post, but nothing will unscrew.

            I will take some pics when I get home tonight and post...

            Comment

            • #7
              If they are indeed the BP6ES, it indeedunscrews. Try a different set of pliers. You might be squeezing the cap onto the threads.
              1979 XS1100F
              2H9 Mod, Truck-Lite LED Headlight, TECHNA-FIT S/S Brake Lines, Rear Air Shocks, TKAT Fork Brace, Dyna DC-I Coils, TC Fuse Block, Barnett HD Clutch Springs, Superbike Handlebars, V-Star 650 ACCT, NGK Irridium Plugs, OEM Exhaust. CNC-Cut 2nd Gear Dogs; Ported/Milled Head; Modded Airbox: 8x8 Wix Panel Filter; #137.5 Main Jet, Viper Yellow Paint, Michelin Pilot Activ F/R, Interstate AGM Battery, 14MM MC, Maier Fairing, Cree LED Fog Lights.

              Comment

              • #8
                Originally posted by JofCoRe View Post
                when i look at the end of the terminal on these, it looks like all one piece. No threaded stud inside, just metal.

                After posting my original message, I tried unscrewing it again with pliers to no avail. Pliers are scoring up the outside of the post, but nothing will unscrew.

                I will take some pics when I get home tonight and post...
                Many years ago I bought NGK BP7ES for a 650, the caps/terminal ends were not removable. I check every time I buy NGKs.
                Put the iridium in my 11 yesterday, feels like the same bike
                76 XS650 C ROADSTER
                80 XS650 G Special II
                https://ibb.co/album/icbGgF
                80 XS 1100 SG
                81 XS 1100LH/SH DARKHORSE
                https://tinyurl.com/k6nzvtw
                AKA; Don'e, UD, Unca Don'e

                Comment

                • #9
                  Originally posted by donebysunday View Post
                  Many years ago I bought NGK BP7ES for a 650, the caps/terminal ends were not removable. I check every time I buy NGKs.
                  Put the iridium in my 11 yesterday, feels like the same bike
                  Yeah, but just for the record, the BP7ES has the removable caps as well. Just a different heat range.
                  1979 XS1100F
                  2H9 Mod, Truck-Lite LED Headlight, TECHNA-FIT S/S Brake Lines, Rear Air Shocks, TKAT Fork Brace, Dyna DC-I Coils, TC Fuse Block, Barnett HD Clutch Springs, Superbike Handlebars, V-Star 650 ACCT, NGK Irridium Plugs, OEM Exhaust. CNC-Cut 2nd Gear Dogs; Ported/Milled Head; Modded Airbox: 8x8 Wix Panel Filter; #137.5 Main Jet, Viper Yellow Paint, Michelin Pilot Activ F/R, Interstate AGM Battery, 14MM MC, Maier Fairing, Cree LED Fog Lights.

                  Comment

                  • #10
                    Originally posted by IanDMacDonald View Post
                    If they are indeed the BP6ES, it indeedunscrews. Try a different set of pliers. You might be squeezing the cap onto the threads.
                    I'm gonna try and unscrew it again tonight and see where it goes. I snapped some pics so you can see what I'm looking at... sort of, the camera had a little hard time focusing on the end of the plug

                    Check it out:
                    https://drive.google.com/folderview?...Uk&usp=sharing

                    I've always used the BP6ES in previous plug changes, but this is the first time I've had such a hard time getting the terminal cap off. Which is why I'm so confused

                    thx!

                    Comment

                    • #11
                      Yours are clearly not the screw off kind. Here's an example of each...

                      '79 XS11 F
                      Stock except K&N

                      '79 XS11 SF
                      Stock, no title.

                      '84 Chevy K-10 "Big Blue"
                      GM 350, Muncie SM465, NP208, GM 10 Bolt with 3.42gears turnin 31x10.5 Baja Claws

                      "What they do have is an implacable, unrelenting presence and movement that bespeaks massive power lurking behind paint and chrome. They don't wail like a screeching ninja, the don't rumble like a harley. They just growl like a spactic, stressed out badger waiting to rip your face off and eat your soul." Trainzz~RIP~

                      Comment

                      • #12
                        Learned something new

                        I googled the part number I saw in the pictures you posted and everything I saw referenced those particular plugs as solid nut.... meaning they do not unscrew. Plugs come in three varieties... solid ... loose and stud. You need either the loose which unscrew or the stud type.

                        From the NGK website.

                        Solid Loose and Stud- NGK Spark Plug Terminal Types
                        NGK spark plugs are available in three different terminal styles depending on application. Solid, loose and stud.
                        Solid Loose Stud
                        The solid terminal style will feature a non-removable terminal nut at the top of the spark plug. The solid terminal type spark plugs can be identified by the darker color, one piece terminal at the top of the spark plug.
                        Example of solid type packaging
                        Another type of spark plug terminal is the loose type. NGK builds some spark plugs in a loose variety which will include a removable terminal nut placed on the spark plug that can be removed for use in applications which use resistor caps that snap over only the threaded stud. Loose terminal spark plugs can be identified by the chrome color terminal which is hollow at the top.
                        Example of loose type packaging
                        NGK Spark Plugs (USA), INC. Automotive Group 46929 Magellan Drive Wixom, Michigan 48393 248-926-6900 www.ngksparkplugs.com
                         Page 2 March 17, 2011 No. 01-05
                        Finally, NGK offers some spark plugs that are called stud type. The stud type terminal will not include a terminal nut either on the spark plug or in the packaging. Stud type spark plugs are for use only where the spark plug cap is designed to snap over the threaded stud. The most common application for stud type spark plugs is motorcycles.
                        Example of stud packaging
                        Because some NGK plug numbers are offered both as solid and loose terminal styles, knowing which type of spark plug terminal your application requires is important and can save you an extra trip to your NGK dealer. The NGK Spark Plug catalog and online parts finder will identify the terminal type required for non-automotive applications.

                        when I looked up what you had pictured I came to this page http://www.amazon.com/NGK-BP6ES-SOLI.../dp/B001RM4SE4

                        which made me continue my search concerning the solid description.

                        the part you need is 7333 as shown here: http://www.ngksparkplugs.com/part_fi...=4006&type=reg
                        2 - 80 LGs bought one new
                        81 LH
                        02 FXSTB Nighttrain
                        22 FLTRK Road Glide Limited
                        Jim

                        Comment

                        • #13
                          Originally posted by cajun31 View Post
                          I googled the part number I saw in the pictures you posted and everything I saw referenced those particular plugs as solid nut.... meaning they do not unscrew. Plugs come in three varieties... solid ... loose and stud. You need either the loose which unscrew or the stud type.

                          From the NGK website.

                          Solid Loose and Stud- NGK Spark Plug Terminal Types
                          NGK spark plugs are available in three different terminal styles depending on application. Solid, loose and stud.
                          Solid Loose Stud
                          The solid terminal style will feature a non-removable terminal nut at the top of the spark plug. The solid terminal type spark plugs can be identified by the darker color, one piece terminal at the top of the spark plug.
                          Example of solid type packaging
                          Another type of spark plug terminal is the loose type. NGK builds some spark plugs in a loose variety which will include a removable terminal nut placed on the spark plug that can be removed for use in applications which use resistor caps that snap over only the threaded stud. Loose terminal spark plugs can be identified by the chrome color terminal which is hollow at the top.
                          Example of loose type packaging
                          NGK Spark Plugs (USA), INC. Automotive Group 46929 Magellan Drive Wixom, Michigan 48393 248-926-6900 www.ngksparkplugs.com
                           Page 2 March 17, 2011 No. 01-05
                          Finally, NGK offers some spark plugs that are called stud type. The stud type terminal will not include a terminal nut either on the spark plug or in the packaging. Stud type spark plugs are for use only where the spark plug cap is designed to snap over the threaded stud. The most common application for stud type spark plugs is motorcycles.
                          Example of stud packaging
                          Because some NGK plug numbers are offered both as solid and loose terminal styles, knowing which type of spark plug terminal your application requires is important and can save you an extra trip to your NGK dealer. The NGK Spark Plug catalog and online parts finder will identify the terminal type required for non-automotive applications.

                          when I looked up what you had pictured I came to this page http://www.amazon.com/NGK-BP6ES-SOLI.../dp/B001RM4SE4

                          which made me continue my search concerning the solid description.

                          the part you need is 7333 as shown here: http://www.ngksparkplugs.com/part_fi...=4006&type=reg
                          Ok, thanks for checking it out! That's what I was beginning to think as well -- I didn't even realize that these plugs were manufactured with different terminals before this! I was working on the XS this past saturday, and the parts store was closed, so I decided to see if Amazon had 'em (pretty sure that's the same link that I found ). The amazon "does it fit" thingy said they fit my XS1100 so I didn't even think about the word "solid" in the description -- I had no idea they were even made in different ways, I thought "hey, a bp6es is a bp6es, right?". Guess I'll be seeing if Amazon will take 'em back and taking a trip to the bike store this weekend before they close

                          Thanks for all the responses and the correct part number!

                          Comment

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