Exhaust indentification help

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  • XSive Okie
    XStremely XSive
    • Jun 2010
    • 281
    • Enid, OK
    #1

    Exhaust indentification help

    Wondering if my pipes are actually O.E. or aftermarket. They have "six-shooter" looking baffles in the tips. Is this stock exhaust? Any help is greatly appreciated!
    Richard
    Richard
    '79 XS1100SF "Phantom Stranger" full fairing w/radio and cd player, H-D Roadking trunk, everything else stock
    '02 Honda VTX1800C
    Tags: None
    • CatatonicBug
      Master of XSology
      • Oct 2008
      • 6117
      • Clinton, UT
      #2
      The OEM mufflers only have a single hole in the center, unless someone got trigger-happy with a drill... A picture may help with real identification though.
      1980 XS850SG - Sold
      1981 XS1100LH Midnight Special (Sold) - purchased 9/29/08
      Fully Vetterized and Dynojet Kit added, Heated Grips, Truck-Lite LED headlight, Accel Coils, Irridium plugs, TKAT Fork Brace, XS850LH Final Drive & Black SS Brake lines from Chacal.
      Here's my web page devoted to my bike! XS/XJ User's Manuals there, and the XJ1100 Service Manual and both XS1100 Service manuals (free download!).

      Whether you think you can, or you think you cannot - You're right.
      -H. Ford

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        • DGXSER
          Doctor of XSology(Deceased)
          • Nov 2008
          • 12001
          • Cincinnati, Ohio
          #3
          The OEM exahust end looks like this (only hopefully alot less rust!)



          Here is one in cleaner condition but with holes drilled to increase air flow through the engine.

          Life is what happens while your planning everything else!

          When your work speaks for itself, don't interrupt.

          81 XS1100 Special - Humpty Dumpty
          80 XS1100 Special - Project Resurrection


          Previously owned
          93 GSX600F
          80 XS1100 Special - Ruby
          81 XS1100 Special
          81 CB750 C
          80 CB750 C
          78 XS750

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            • XSive Okie
              XStremely XSive
              • Jun 2010
              • 281
              • Enid, OK
              #4
              Must not be stock then, has a hole in the center and 6 surrounding it that resemble a cylinder of a revolver and are all the same size. Each hole has lip formed around it, so they are not drilled out. Definetly made that way. I don't have a camera at my disposal right now, so no pics. Thanks, Bug!
              Richard
              '79 XS1100SF "Phantom Stranger" full fairing w/radio and cd player, H-D Roadking trunk, everything else stock
              '02 Honda VTX1800C

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                • XSive Okie
                  XStremely XSive
                  • Jun 2010
                  • 281
                  • Enid, OK
                  #5
                  Thanks for the pics, DG!
                  Richard
                  '79 XS1100SF "Phantom Stranger" full fairing w/radio and cd player, H-D Roadking trunk, everything else stock
                  '02 Honda VTX1800C

                    Comment

                    • CaptonZap
                      XS-XJ Guru
                      • Jun 2010
                      • 1748
                      • Denver
                      #6
                      Originally posted by XSive Okie
                      Must not be stock then, has a hole in the center and 6 surrounding it that resemble a cylinder of a revolver and are all the same size. Each hole has lip formed around it, so they are not drilled out. Definetly made that way. I don't have a camera at my disposal right now, so no pics. Thanks, Bug!
                      Do the lips go in, or out?
                      The stock mufflers on my 80G have six pressed in depressions around the center hole, and with precise centering, and the proper sized drill, they could be drilled out, leaving a lip to the inside. CZ

                        Comment

                        • James England
                          XS-XJ Super Guru
                          • Oct 2010
                          • 3039
                          • North of England
                          #7
                          I've seen this done on Marshall Deeptones (which have only one central hole) and others. All it seems to accomplish is to make a racket and give the illusion of more speed. As far as I understand it, increasing the flow through the system, without re-jetting the carbs accordingly, is counter-productive and can actually impair the performance. Originally, my bike had a Marshall Deeptone drilled in the same manner. I put a plate over them and sealed them all up. I didn't notice any difference in performance at all, apart from the bike being quieter.
                          XS1100F 1980 European model. Standard. Dyna coils. Iridium plugs. XS750 final drive (sometimes). Micron fork brace. Progressive front springs. Geezer regulator/rectifier. Stainless 4 into 2 exhaust. Auto CCT (Venturer 1300) SOLD. New project now on the go. 1980 European model.

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