Mufflers

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  • DGXSER
    Doctor of XSology(Deceased)
    • Nov 2008
    • 12001
    • Cincinnati, Ohio

    #1

    Mufflers

    I got hoem from a short ride today where in the middle of the ride I got a pretty rough low end miss and stutter. Having just completed the VF1000 coil upgrade, I guessed I had a loose wire issue. As I started pulling the seat I found my right side muffler had a crack clean through going about 80% around the pipe, right where the sleeve was welded to the muffler as it expands. So, I am now in need of replacement Mufflers and my budget is pretty limited since I just had to replace my AC unit on the house. I have read a few folks picking up some HD mufflers and having good luck running them. Wondering if there are any to lean toward or avoid, before I go contacting the local HD stealerships.
    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
  • crazy steve
    XS-XJ Guru MODERATOR
    • Jan 2009
    • 7932
    • Beautiful outer Yelm, WA

    #2
    From what I've seen that's pretty typical for the Special exhaust for some reason, and the right side is usually the culprit. But rather than replace it, why not just have it rewelded? The 'heat shield' will cover the repairs, and anybody with a MIG can weld that up...
    Fast, Cheap, Reliable... Pick any two

    '78E original owner - resto project
    '78E ???? owner - Modder project FJ forks, 4-piston calipers F/R, 160/80-16 rear tire
    '82 XJ rebuild project
    '80SG restified, red SOLD
    '79F parts...
    '81H more parts...

    Other current bikes:
    '93 XL1200 Anniversary Sportster 85RWHP
    '86 XL883/1200 Chopper
    '82 XL1000 w/1450cc Buell, Baker 6-speed, in-progress project
    Cage: '13 Mustang GT/CS with a few 'custom' touches
    Yep, can't leave nuthin' alone...

    Comment

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

      #3
      +1 what Steve says...........worked for me 30yrs.ago...and really hard to tell unless you wanna crawl on your knees..........
      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

      • DGXSER
        Doctor of XSology(Deceased)
        • Nov 2008
        • 12001
        • Cincinnati, Ohio

        #4
        Steve, It is an aftermarket exhaust. Originally sold to me on Fleabay as a Kerker 4-2. As Phil has stated to me a few times, he has never heard of a Kerker 4-2. Neither have I but it was relatively cheap at $60 + shipping. So I wen with it and it got me this far.

        It has never really fit quite right, I think it may have been intended for a Standard. And it has no crossover or I would think it was a Jardine from the shape of it. Anyway, I think the reason it failed is it had to be pulled pretty hard to get it mounted up to the rear mount and not rub the swing arm. So long story short, I have been considering going with something else, but now my hand is forced.

        Here is a pic of it not to long ago and the arrow points to the failure spot.

        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

        Comment

        • CaptonZap
          XS-XJ Guru
          • Jun 2010
          • 1748
          • Denver

          #5
          When you go to the Hardley dealer, look in the ends of the mufflers. Both ends. Use a good flashlight. Some of them have a catalytic element in the inlet side, some don't.
          The cat would be another source of back pressure, especially if it got gunked up with oil.
          Not to say you have an oil burner, but if the cat doesn't get hot enough, it won't burn the crap off. So if you do short runs, and don't get the mufflers good and hot, not only will the cat foul, but the mufflers will rust, and if you run 40 PSI in the rear tire, you will crash and die.
          Have a good day. CZ

          Comment

          • crazy steve
            XS-XJ Guru MODERATOR
            • Jan 2009
            • 7932
            • Beautiful outer Yelm, WA

            #6
            You could still reweld this, but the repair will show. The upside is, the 'strain' will gone...
            Fast, Cheap, Reliable... Pick any two

            '78E original owner - resto project
            '78E ???? owner - Modder project FJ forks, 4-piston calipers F/R, 160/80-16 rear tire
            '82 XJ rebuild project
            '80SG restified, red SOLD
            '79F parts...
            '81H more parts...

            Other current bikes:
            '93 XL1200 Anniversary Sportster 85RWHP
            '86 XL883/1200 Chopper
            '82 XL1000 w/1450cc Buell, Baker 6-speed, in-progress project
            Cage: '13 Mustang GT/CS with a few 'custom' touches
            Yep, can't leave nuthin' alone...

            Comment

            • DGXSER
              Doctor of XSology(Deceased)
              • Nov 2008
              • 12001
              • Cincinnati, Ohio

              #7
              Couple sets of Sportster Mufflers sya for 99-03 for pretty cheap on Fleabay. Do those have the cats?
              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

              Comment

              • debauchery
                XSive
                • Jul 2007
                • 47
                • Southeast Massachusetts

                #8
                cut from the tip down past the break and keep it on the back-side adjust to a stress free angle and weld it up clean and polish after.
                harley pipes are decent and workable but you get what you pay for -in advertising.
                79 xs eleven special
                pods
                jetted
                cammed
                pitted chrome
                straight pipes
                16" apes
                +6 front
                -2.6 rigid rear (still regret this)
                blinkers are for slow ppl
                http://i473.photobucket.com/albums/r...1/100_3355.jpg http://i473.photobucket.com/albums/r...1st2011021.jpg
                "here for a good time NOT a long time"

                Comment

                • crazy steve
                  XS-XJ Guru MODERATOR
                  • Jan 2009
                  • 7932
                  • Beautiful outer Yelm, WA

                  #9
                  Originally posted by DGXSER
                  Couple sets of Sportster Mufflers sya for 99-03 for pretty cheap on Fleabay. Do those have the cats?
                  Nope, and they will also lack the crossover of the later sporty muffs, so those would be a decent choice. The downside is the mounting brackets aren't symmetrical. The '04-07 Sporty muffs have the crossover, no cats, but do have symmetrical mounts, so fabbing something would be a bit easier. And even the later muffs with the cat only have it in one muffler AFAIK, so if you can find two sets cheap enough, you can discard the cat versions...
                  Fast, Cheap, Reliable... Pick any two

                  '78E original owner - resto project
                  '78E ???? owner - Modder project FJ forks, 4-piston calipers F/R, 160/80-16 rear tire
                  '82 XJ rebuild project
                  '80SG restified, red SOLD
                  '79F parts...
                  '81H more parts...

                  Other current bikes:
                  '93 XL1200 Anniversary Sportster 85RWHP
                  '86 XL883/1200 Chopper
                  '82 XL1000 w/1450cc Buell, Baker 6-speed, in-progress project
                  Cage: '13 Mustang GT/CS with a few 'custom' touches
                  Yep, can't leave nuthin' alone...

                  Comment

                  • ManagerMike
                    XStremely XSive
                    • Mar 2010
                    • 445
                    • S.E. Michigan

                    #10
                    One of the guys here at work has ot a set of 05 HD sportster 883 muffs off his dad's bike. He wants $50 for the pair.
                    Plus shipping of course whatever that may come to.
                    '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

                    • CaptonZap
                      XS-XJ Guru
                      • Jun 2010
                      • 1748
                      • Denver

                      #11
                      Originally posted by ManagerMike
                      One of the guys here at work has ot a set of 05 HD sportster 883 muffs off his dad's bike. He wants $50 for the pair.
                      Plus shipping of course whatever that may come to.
                      Have him bring them to work, and take the head pipe off of one of them. Look inside with a flashlight. If you see something like small honeycomb, that is the CAT element.
                      If you have some fabrication skills, and the appropriate tools, they can be made to fit, with a cross over. CZ

                      Comment

                      • BA80
                        Doctor of XSology
                        • Oct 2010
                        • 9980
                        • Tulsa, Ok

                        #12
                        Originally posted by CaptonZap
                        When you go to the Hardley dealer, look in the ends of the mufflers. Both ends. Use a good flashlight. Some of them have a catalytic element in the inlet side, some don't.
                        The cat would be another source of back pressure, especially if it got gunked up with oil.
                        Not to say you have an oil burner, but if the cat doesn't get hot enough, it won't burn the crap off. So if you do short runs, and don't get the mufflers good and hot, not only will the cat foul, but the mufflers will rust, and if you run 40 PSI in the rear tire, you will crash and die.
                        Have a good day. CZ
                        Those cats would be designed to run with that 880cc 2 cylinder engine, they would certainly get hot enough on an 1100cc 4 cylinder to stay clean with unleaded fuel. Unless you have another problem.

                        However they would create a little back pressure, not necessarily a bad thing if you like some bottom end power. It might hurt at the higher RPMs though.

                        I've heard these engines with the sporty muffs. The don't sound bad.
                        Greg

                        Everybody is a genius. But if you judge a fish by its ability to climb a tree, it will live its whole life believing that it is stupid.โ€

                        โ€• Albert Einstein

                        80 SG Ol' Okie;79 engine & carbs w/pods, 45 pilots, 140 mains, Custom Mac 4 into 2 exhaust, ACCT,XS850 final drive,110/90/19 front tire,TKat fork brace, XS750 140 MPH speedometer, Vetter IV fairing, aftermarket hard bags and trunk, LG high back seat, XJ rear shocks.

                        The list changes.

                        Comment

                        • planedick
                          XS-XJ Guru
                          • Mar 2005
                          • 2068
                          • Yorba Linda, California

                          #13
                          Hardly mufflers

                          I got a set of new Hardly mufflers from the local HD dealer for free and I've seen 'em on fleabay for $10. Mine sound nice, and I didn't need to rejet or anything and it runs as good as any stock bike you can find and better than any modified with aftermarket pipes. I keep telling everyone this, but it seems people here have VERY SHORT memories. Those that have seen mine will vouch for what I say...
                          You can't stay young forever, but you can be immature for the rest of your life...

                          '78E "Pathfinder" Show bike...
                          Lovingly restored by Dave Delzell
                          Drilled airbox
                          Tkat fork brace
                          Hardly mufflers
                          late model carbs
                          Newer style fuses
                          Oil pressure guage
                          Custom security system
                          Stainless braid brake lines

                          Comment

                          • crazy steve
                            XS-XJ Guru MODERATOR
                            • Jan 2009
                            • 7932
                            • Beautiful outer Yelm, WA

                            #14
                            Originally posted by planedick
                            I got a set of new Hardly mufflers from the local HD dealer for free and I've seen 'em on fleabay for $10. Mine sound nice, and I didn't need to rejet or anything and it runs as good as any stock bike you can find and better than any modified with aftermarket pipes. I keep telling everyone this, but it seems people here have VERY SHORT memories. Those that have seen mine will vouch for what I say...
                            That's because some people want to brand you as an heretic for using (gasp!) Harley parts and diluting the purity of the Yamaha vision.

                            Me, if I can get a as-good-or-better part for the right price, I don't care where it comes from.
                            Fast, Cheap, Reliable... Pick any two

                            '78E original owner - resto project
                            '78E ???? owner - Modder project FJ forks, 4-piston calipers F/R, 160/80-16 rear tire
                            '82 XJ rebuild project
                            '80SG restified, red SOLD
                            '79F parts...
                            '81H more parts...

                            Other current bikes:
                            '93 XL1200 Anniversary Sportster 85RWHP
                            '86 XL883/1200 Chopper
                            '82 XL1000 w/1450cc Buell, Baker 6-speed, in-progress project
                            Cage: '13 Mustang GT/CS with a few 'custom' touches
                            Yep, can't leave nuthin' alone...

                            Comment

                            • Mendizale
                              XSive
                              • May 2011
                              • 97
                              • Near Seattle, Wash.

                              #15
                              I think Andreas (andreashweiss) just got a clean standard ('81 SG) to part out. PM for the mufflers?
                              1979 Yamaha XS1100 Special
                              1969 (or '70 or '71) Triumph (Trophy or BSA) 250

                              Comment

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