Stock muffler question
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Thread: Stock muffler question

  1. #1
    Junior Member Adam38654's Avatar
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    Is the factory muffler supposed to have any baffles in it besides the spark arrester screen and little propeller blade looking thing welded to the back of the end cap? Mine is hollow like the insides burnt out but I don't see how that could happen in 1700 miles. I would like to make mine quieter but I don't see we're I could put any packing as there is no core pipe.

  2. #2
    Senior Member lizrdbrth's Avatar
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    The stocker is about as quiet as a muffler gets.



    If yours isn't, there's something funky going on.



    There is no packing, nor is any needed. It's purely mechanical.



    The baffle/spark arrestor with the screen and the propeller thingy should be as you've described. If the are no openings, burned out spots or cracks in the stainless that part is fine.



    Looking down into the muffler with the baffle removed you should see a "nosecone" at the far end of the inner tube. The nosecone should be solid and there should be two small holes in either sidewall about 1/2" in diameter. There should be no holes, openings or daylight otherwise visible except to the sides.If the bike were run lean enough for long enough it's possible that either the nosecone could be burned off, cracked or the holes enlarged by heat.



    Other than that there ain't a danged thing that can go wrong with one.



    I can explain it to you, but I can't understand it for you.

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  3. #3
    Senior Member Stromper's Avatar
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    ANy body hack or cut it to think they get more performance ?

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  5. #4
    Junior Member Adam38654's Avatar
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    Does anyone have a pic of the muffler inside? Someone must have cleared the inside of mine out or something.

  6. #5
    Banned qwerty's Avatar
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    http://www.stadiumyamaha.com/pages/OemParts?aribrand=YAM#/Yamaha/TW200_-_TW200R_-_2003/EXHAUST/TW200R_(2003_MOTORCYCLE)/EXHAUST_(TW200R_-_2003)



    Just the end cap and the attached baffle/spark arrestor. Yamaha did a good job on engineering the exhaust on the TW. Light, quiet, and stops sparks.




  7. #6
    Junior Member Adam38654's Avatar
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    I guess its just loader than I expected. I was afraid that ring of carbon half way back used to be a baffle and it almost looks like a piece of fiberglass in the back that you cant see in the pics.








  8. #7
    Senior Member Gerry's Avatar
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    They are quiet, but I wanted to see if I could mute the "putt, putt, putt" a bit. I fabricated an add on silencer. Seems to work pretty good and did not impact performance as near as I can tell. I still manage to go fast enough to fall over .. Gerry















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    Take care my Friend.........

  9. #8
    Junior Member Adam38654's Avatar
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    I would like to make a packed core like that inside my muffler but at this point I think I am just going to go with a DG oval with quiet core and spark arrester.bassically the same thing and looks better. It can't be louder than mine is now and I like the lower sound.

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