The fill plugs for servicing diff and final drive

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  • JonnyO
    XStremely XSive
    • Oct 2020
    • 229
    • Sun City West, AZ

    #1

    The fill plugs for servicing diff and final drive

    Hey, guys. While I have changed the gear oils in my bike and it won't need to be done again for sometime I would still like to have plugs that aren't chewed to hell because the tools used to remove them before were incorrect.
    I managed to get them off, drain and refilled and back on again but not with great confidence. I've looked around ( of course discontinued as far as I found ) and been unsuccessful. If there's any chance of finding
    replacements it's with you guys, so TIA.
    -Jonny
    Last edited by JonnyO; 08-14-2021, 12:00 PM.
  • Radioguylogs
    XS-XJ Guru
    • Nov 2012
    • 1933
    • Presque Isle, MI

    #2
    I bought new OE plugs from Partzilla when I was working on the Venturer:

    https://www.partzilla.com/product/ya...bdfbd498efa283

    https://www.partzilla.com/product/ya...00ae5fd594e10b

    -Mike
    _________
    '79 XS1100SF 20k miles
    '80 XS1100SG 44k miles
    '81 XS1100H Venturer 35k miles
    '79 XS750SF 17k miles
    '85 Honda V65 Magna ~7k miles
    '84 Honda V65 Magna 48k miles (parts bike)
    '86 Yamaha VMAX 9k miles

    Previous: '68 Motoguzzi 600cc + '79 XS750SF 22k miles +'84 Honda V65

    Comment

    • JonnyO
      XStremely XSive
      • Oct 2020
      • 229
      • Sun City West, AZ

      #3
      Originally posted by Radioguylogs
      I bought new OE plugs from Partzilla when I was working on the Venturer:

      https://www.partzilla.com/product/ya...bdfbd498efa283

      https://www.partzilla.com/product/ya...00ae5fd594e10b
      Are they the same? Same number comes up for both of your suggestions. - #90340-14002-00
      Thanks!

      Comment

      • bikerphil
        Master of XSology
        • Jan 2008
        • 8629
        • South Flori-DUH

        #4
        Both fill plugs are the same.
        2H7 (79) owned since '89
        3H3 owned since '06

        "If it ain't broke, modify it"

        Comment

        • JonnyO
          XStremely XSive
          • Oct 2020
          • 229
          • Sun City West, AZ

          #5
          Originally posted by bikerphil
          Both fill plugs are the same.
          OK, THANK YOU! ( Long time since I changed it and with Jon'sheimers there's no tellin' if me memory is correct! )
          Thanks again! Three hours later and my question is resolved. Wow.
          I'm still thrilled with the replies I got here about my starter problem that saved me a buttload of money on an unnecessary repair -because I had simply used the wrong weight engine oil. WOOT!
          Last edited by JonnyO; 08-14-2021, 12:03 PM.

          Comment

          • bikerphil
            Master of XSology
            • Jan 2008
            • 8629
            • South Flori-DUH

            #6
            You're welcome Jonny.
            2H7 (79) owned since '89
            3H3 owned since '06

            "If it ain't broke, modify it"

            Comment

            • motoman
              Master of XSology
              • Aug 2005
              • 8413
              • Grand Junction, Colorado

              #7
              JonnyO, if you'll go to your local Ace or Tru-Valu and in those specialty trays you'll find hex head plugs that fit perfect. Along with those you'll find the thick fiber gaskets that fit perfectly over threads of plugs. Using these enable you to use a wrench to remove and replace them. Been there and made that change many years back and never looked back.
              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

              • DaveT
                XSive
                • Aug 2017
                • 41
                • Spokane, WA.

                #8
                Most ACE hardware stores have a pretty broad selection of metric fasteners and fittings in both steel and stainless. I visit ACE frequently.

                Comment

                • cajun31
                  Moderator
                  • Oct 2003
                  • 1783
                  • Brandon, MS

                  #9
                  Originally posted by JonnyO

                  OK, THANK YOU! ( Long time since I changed it and with Jon'sheimers there's no tellin' if me memory is correct! )
                  Thanks again! Three hours later and my question is resolved. Wow.I
                  I'm still thrilled with the replies I got here about my starter problem that saved me a buttload of money on an unnecessary repair -because I had simply used the wrong weight engine oil. WOOT!
                  I would add that applying some anti seize to the threads when installing them will prevent the vice grips in the future.
                  2 - 80 LGs bought one new
                  81 LH
                  02 FXSTB Nighttrain
                  22 FLTRK Road Glide Limited
                  Jim

                  Comment

                  • Mathh
                    XSive Maximus
                    • Nov 2006
                    • 662
                    • Beek, Netherlands

                    #10
                    Yamaha still sells these, even the plastic caps that keeps the dirt out are still available..
                    XS1100 3X0 '82 restomod, 2H9 '78 chain drive racer, 3H3 '79 customized.
                    MV Agusta Brutale 910R '06.
                    Triumph 1200 Speed Trophy '91, Triumph 1200 '93.
                    Z1 '73 restomod, Z1A '74 yellow/green, KZ900 A4 '76 green.
                    Yamaha MT-09 Tracer '15 grey.
                    Kawasaki Z1300 DFI '84 modified, red.

                    Comment

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