Exhaust Baffle

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  • dewey11803
    #1

    Exhaust Baffle

    Hello all!!
    Not sure if this is the right area to ask this question.
    I tried the search engine in the GSRescources and could not find the answer to my question, so here it is.
    I have 78 GS750 I bought a couple of months ago with the stock 4 into 2 exhaust. I just bought a 4 into 1 exhuast from Ebay for $28.00, great deal.
    I received it today and it does not have any packing (sorry I am no mechaninc so ignore the non-techincal descriptions) in the baffle. The exhaust does not have a name on it.
    Can I buy packing for this or do I need it? If so, any reccomendations on where to get it. It does not have an end cap.
    Also, will I have to re jet the carbs?
    Thanks for any information and the great site.
    Thanks
    Allen
    Tags: None
    • duaneage
      Forum Guru
      GSResource Superstar
      • Apr 2004
      • 6149
      • Wilmington Delaware
      #2
      You can pack it with fiberglass, pack it tight.

      Rejetting depends on a lot of factors, like if you have pods or an airbox. You will have to test it and see how it runs and do a chop test.

      The chop test is running at or near full throttle in 4th or 5th gear and then killing the engine. When you pull a plug you should see if it is lean or rich. It is probably going to be a little leaner than with the stock exhaust.

      Everything else needs to be in good shape. Points, plugs, air filter nd carb sync should be OK before trying to rejet for a pipe. Failure to do any of these steps means your going to be wasting your time.

      Post a picture of what you bought (or the ebay link to it) and maybe someone can identify it and advise you on jetting.
      1981 GS650G , all the bike you need
      1980 GS1000G Power corrupts, and absolute power corrupts absolutely

        Comment

        • dewey11803
          #3
          Thanks for the information!
          What about the missing cap on the end of the baffle? Can I find a replacement for that?
          I found a complete replacement muffler on oldbikebarn for about $35.00.
          The headers seem to measure up to my stock exhaust even though I have not tried putting it on yet, I will this weekend.
          This is the Ebay link if anyone has any ideas:
          Pardon Our Interruption...
          http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&rd=1,1&item=4598022887&sspagename=STRK%3AMEWN%3AIT

          Thanks again
          Allen

            Comment

            • sidd
              #4
              I would be inclined to think that you'll find a replacement muffler long before you'd find just the missing cap.

                Comment

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