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Coming back to my Kat

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  • Coming back to my Kat

    Soooo... hi guys. I havenít been here in a while. My 91 pre has been in storage for a few years. I bought and Aprilia Mana 850 that I played with for 2 years and picked up a 2003 Vrod last year for peanuts.

    I've had my fun with both bikes but really feel like I need to revisit my 91 and finish things up. I enjoyed the heck out of that bike and want to ride it again... and again...

    Unresolved issues:

    1. Carbs. Rebuilt them and brought everything back to stock jets, etc. The bike came with a Vance and Hines Supersport (header to can) and I further complicated issues by ditching the completely shot can and replacing it with a Yosh meant for a Gixxer 600. It sure looks pretty, and sound great, but runs horribly.

    2. Forks. The adjustments are shot. I need to have them rebuilt.

    3. Suspension. Since Iíll be getting the forks done, the rear suspension is also pretty cruddy. Iím a big guy (6í1Ē 250 lbs) and I need a hit more .... hmmm... support. No pre-load adjustment so Iím thinking a much stiffer spring.

    I know that there used to be a member that rebuilt carbs and and another that rebuilt forks- but that was a few years ago.

    Advice gratefully accepted!
    Last edited by lastleg; 03-20-2019, 12:07 PM.
    sigpic
    '91 Katana 600 custom right-side shift, Yoshimura Exhaust, Vinyl Carbon Fiber wrapped.

    '09 Aprilia Mana 850 Carbon Fiber body work, Leo Vince Exhaust, HID conversion

  • #2
    I redid my suspension recently . The rear shock likely lost the last of its nitrogen around the time GW Bush left office, bike sagged and felt like a moving van.
    i got a new shock, new springs, feels like new bike .
    As for rebuilding carbs, I sent my out a few years ago to wiredgeorge ( just google it). He takes mail in carbs and rebuilds them for around $300 ( I think). This is complete disassembly and dipping . Bear in mind that heís popular and youíll wait but he does show you on line where your carbs are in the que.

    Comment


    • #3
      I think i just need to noodle around with the jetting... for that, the carbs need to be on the bike. Unless someone knows something that I don't, it's going to be trial-and error getting the jets right.
      sigpic
      '91 Katana 600 custom right-side shift, Yoshimura Exhaust, Vinyl Carbon Fiber wrapped.

      '09 Aprilia Mana 850 Carbon Fiber body work, Leo Vince Exhaust, HID conversion

      Comment


      • #4
        If the carbs arenít totally clean, then your just wasting your time. Iím no carb guru , but I donít think you should ever experiment with different jets unless youíre 100% sure the carbs are clean.

        Comment


        • #5
          I had them off of the bike and completely (eat-off-of-them) clean. Complete rebuild and vacuum synchronized. But. But. BUUUUUT... it runs like crap under load. Especially in the 4000-6000 rpm range. Frustrating.
          sigpic
          '91 Katana 600 custom right-side shift, Yoshimura Exhaust, Vinyl Carbon Fiber wrapped.

          '09 Aprilia Mana 850 Carbon Fiber body work, Leo Vince Exhaust, HID conversion

          Comment

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