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How do you take apart the cap bolt assembly?

Discussion in 'XJ Technical Chat' started by Jojo, Oct 1, 2012.

  1. Jojo

    Jojo New Member

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    I am trying to get my fork to stop leaking. I need to replace the oring in the cap bolt assembly. Its a 1982 xj750 maxim.
     
  2. BluesBass

    BluesBass Member

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    Welcome to the forums! You might want to put your bike info in your sig to make it easier for everyone to help give input.

    That sounds like you need to do a complete fork overhaul. Get your hands on a shop manual. You'll need to order new fork seals and dust caps, change out your fork oil and give everything inside a good once-over to make sure it is all clean.
     
  3. Jojo

    Jojo New Member

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    I know I probably do need to do a complete overhaul but I can't seem to find how to replace the seal in the cap-bolt assembly. Also How do you overhaul the rear shocks? Where is a good place to get seals from?
     
  4. BluesBass

    BluesBass Member

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    I think the fix for the rears tends to be replacement of the entire unit. The stock ones are not the greatest, and the consensus as I understand it (and agree with) is that progressive shocks for the rear (and progressive springs for the front) give the best ride for the money.

    Does your bike have an air-assist front shock, or are the tops of the forks just closed with a metal plug?
     
  5. bigfitz52

    bigfitz52 Well-Known Member Premium Member

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    BB is correct, the stock rears on the 750 Max aren't rebuildable units, and if the bike has more than about 6K ~ 8K miles on it, they're done.

    YOU NEED A SERVICE MANUAL. Your forks are a tad more complex than some of the others in the XJ line.

    The 750 Maxim has air-assisted forks, which means some additional bits and pieces up top. I believe the uppermost "cap" once you remove a rubber plug requires a large hex bit ("Allen" wrench.)

    Again, you need a book. FIRST.
     
  6. Jojo

    Jojo New Member

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    I do have a service manual. It just doesn't tell me how to take apart the cap.
     
  7. Jojo

    Jojo New Member

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  8. BluesBass

    BluesBass Member

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    I HIGHLY recommend progressives, all the way around. Aftermarket shocks with three decades of additional research, technology, and development have a HUGE advantage over OEM parts. The difference I discovered going to progressives from my worn out stock suspension was amazing. My bike rides smooth and the suspension response is crisp and precise, even when I take turns fast enough to scrape my foot pegs (something I never would have dared with the OEM shocks).

    I honestly can't advise you on the air assist forks you have; my 650 is an 'easier' system of springs, shims, and a plug held in by a circlip.

    My thoughts on progressive aftermarket shocks stand. You can get them adjustable and way more durable than anything OEM can come close to. It might be a bit more pricey, but the question is do you want it fixed for now, or do you want it fixed long term?
     

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