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  1. #1
    ncdoo's Avatar
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    Catalytic converter question

    1999 1200 XLT-- Rebuilding the top end and when I went to install the exhaust pipe, I noticed that the honeycomb section in the pipe is loose (rattles), is this normal?
    Thanks
    Joe


  2. #2
    800AMSOIL4U's Avatar
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    You will burn down your engine that way. Take it out and install a D plate. http://www.4-tecperformance.com/inde...roducts_id=124 You also need this. http://www.4-tecperformance.com/inde...roducts_id=118

  3. #3
    Duke's Avatar
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    Quote Originally Posted by 800AMSOIL4U View Post
    You will burn down your engine that way. Take it out and install a D plate. http://www.4-tecperformance.com/inde...roducts_id=124 You also need this. http://www.4-tecperformance.com/inde...roducts_id=118
    Ditto!!!! Do yourself a huge favor and get the D-plate. They are available right here in the online store.

  4. #4
    ncdoo's Avatar
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    I know everyone reccomends running the d plate. Just wondering if it will hurt to run it like it is. What exactly does the d plate do. Does it just create back pressure that the cat would normally do?

  5. #5
    krispaintballz's Avatar
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    Yeah but that cat is falling apart and can do damage. Get a d-plate Like mentioned above.
    Sorry it WILL do damage.

  6. #6
    If your not doing something, its hard to screw up. stlouisramsfan's Avatar
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    get a d-plate and switch to a synthetic oil....

  7. #7
    Moderator OsideBill's Avatar
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    Quote Originally Posted by ncdoo View Post
    I know everyone reccomends running the d plate. Just wondering if it will hurt to run it like it is. What exactly does the d plate do. Does it just create back pressure that the cat would normally do?
    When the cat finally falls apart it will clog your exhaust system and cause issues. The original D-plates were copied from Yamaha's design they had on the overseas units where the Cat was not required. Get a D-plate you will never regret it.

  8. #8
    ncdoo's Avatar
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    Appreciate the advice, other than being loose, the cat looks fine. No clogged or damaged. I'm going to be selling the ski as soon as I break it in. Just wondering if it will hurt to run it like it is, or possibly reweld it to its housing.

  9. #9
    krispaintballz's Avatar
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    RUN A D-PLATE!!!!!! Pennies compared to the problem you will have when it falls apart. Not to mention I wouldn't want to buy a ski that has a loose catalytic converter because the owner was too lazy to put one in. When i say too lazy I mean "the easy way out".

  10. #10
    If your not doing something, its hard to screw up. stlouisramsfan's Avatar
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    Quote Originally Posted by krispaintballz View Post
    RUN A D-PLATE!!!!!! Pennies compared to the problem you will have when it falls apart. Not to mention I wouldn't want to buy a ski that has a loose catalytic converter because the owner was too lazy to put one in. When i say too lazy I mean "the easy way out".
    + 1... 3 hours or so... not a bad job

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