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  1. #1

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    Please help identify this stock Rotax exhaust manifold.

    Good evening gentlemen,
    Today I was visiting my local Seadoo Dealer and mentioned to him I needed to remove the exhaust manifold from my 05 RXT and tap it for an AFR Bung. He disappeared for a moment and came back with a 4-Tec exhaust manifold and handed it to me and said he had no use for it and how about I work on this one while being able to continue riding over the holiday.
    The only numbers on the manifold are Rotax 973692. I got on the OEM parts finder and tried to find out if it's something I can use but was unable to find an exhaust manifold with Rotax 973692. 4-Tec manifold numbers I found had approx. 9 didgits and didn't match up. Can anybody help identify these numbers and whether or not it will work it will work on my RXT?
    Thank you very much for your time,
    Jack M


  2. #2
    83.0 @ 8400 jhill19's Avatar
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    That sounds right, you can only drill a 692 out so far before hitting the water jacket, The boss isn't very big on the 692 but a 693 you can drill and tap to the 18 mm o2 sensor. I've got a 692 drilled with a 12 mm heat sink sitting in my garage, I have my o2 going in my j pipe

  3. #3
    MSRXP's Avatar
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    The 692 can be drilled but it's not easy. The 693 is the one you need. Honestly, having done both, I would do the j pipe hands down. Around the same price but it's so much more room in the j pipe for when you need to install or remove the sensor. I have done both and highly recommend the j pipe method.

  4. #4

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    Thank you gentlemen for the education.

  5. #5
    MSRXP's Avatar
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    Quote Originally Posted by Jack M View Post
    Thank you gentlemen for the education.
    No problem!

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