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Exhaust

Discussion in 'XJ Technical Chat' started by Nic, Dec 5, 2016.

  1. Nic

    Nic Member

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    What kind of exhaust can I put on my xj650j with no problems
     
    Nic, Dec 5, 2016
    #1
  2. Xjrider92117

    Xjrider92117 Active Member

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    An exhaust for a xj650j. :D:D
     
    Xjrider92117, Dec 5, 2016
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  3. Jetfixer

    Jetfixer Well-Known Member

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    Mac makes a 4 into 2 as well as 4 into one... are not cheap but work ok ..I have the Mac 4 into 2 on my XJ750 Seca.
     
    Jetfixer, Dec 5, 2016
    #3
  4. hogfiddles

    hogfiddles XJ-Wizard, Host-Central NY Carb Clinic Moderator Premium Member

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    ...or xj650G, Xj650H, xj650K, xj650MK,.........
     
    hogfiddles, Dec 5, 2016
    #4
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  5. Nic

    Nic Member

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    Do you have any suggestions i was reading up on it, it doesn't seem like I can put any exhaust system on the xj650j without modification of the carbs. The original exhaust is rusted at the collector.
     
    Nic, Dec 5, 2016
    #5
  6. Nic

    Nic Member

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    Come on guy this bike is growing on me.
     
    Nic, Dec 5, 2016
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  7. hogfiddles

    hogfiddles XJ-Wizard, Host-Central NY Carb Clinic Moderator Premium Member

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    Those ARE the suggestions. You have a 650 maxim. ANY 650 Maxim from 1980-1984 will interchange.

    Yes, I said 1984. No, it is not a typo-- the 650 Maxim was available in 1984 outside of the USA.

    The 650 Maxim did not have a collector box Per-say..... The left two pipes were connected to a 2/1 receiver that was part of a single muffler/receiver. Same for the right side. There was a cross-over pipe with a slip joint as part of each side, that joined under the engine.

    Now, if you actually HAVE a collector box, then you actually have a 650Rj.... THAT collector IS unique to the 650rj.....
     
    hogfiddles, Dec 5, 2016
    #7
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  8. Nic

    Nic Member

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    Thanks
     
    Nic, Dec 5, 2016
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  9. hogfiddles

    hogfiddles XJ-Wizard, Host-Central NY Carb Clinic Moderator Premium Member

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    Time for show-n-tell:

    Xj650rj
    image.jpeg

    Xj650g/h/j/k
    image.jpeg

    Hope that helps clarify things.......
     
    Last edited: Dec 5, 2016
    hogfiddles, Dec 5, 2016
    #9
  10. Nic

    Nic Member

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    Yes want to sell me the one I need hogfiddles the j model with the silencer not collector.
     
    Last edited: Dec 6, 2016
    Nic, Dec 6, 2016
    #10
  11. hogfiddles

    hogfiddles XJ-Wizard, Host-Central NY Carb Clinic Moderator Premium Member

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    I will look to see if I have anything available
     
    hogfiddles, Dec 6, 2016
    #11
  12. Nic

    Nic Member

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    Thanks
     
    Nic, Dec 6, 2016
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  13. xjyamaha

    xjyamaha Member

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    Have a Mac 4 into 2 on my XJ650j. Works well and looks good.
     
    xjyamaha, Dec 11, 2016
    #13
  14. Nic

    Nic Member

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    Did you have to do anything to the carbs
     
    Nic, Dec 12, 2016
    #14
  15. xjyamaha

    xjyamaha Member

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    I didn't, and my bike runs fine. I've seen a recommendation to go up a size in jets, but I just went ahead with the factory sizes.
     
    xjyamaha, Dec 12, 2016
    #15
  16. hogfiddles

    hogfiddles XJ-Wizard, Host-Central NY Carb Clinic Moderator Premium Member

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    All I have is some beat up stuff, nothing good enough to sell yet
     
    hogfiddles, Dec 12, 2016
    #16
  17. Xjrider92117

    Xjrider92117 Active Member

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    Xjrider92117, Dec 12, 2016
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