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Newb Carb Rebuild - Thread for questions - Help appreciated

Discussion in 'XJ Technical Chat' started by eman1974, Mar 10, 2012.

  1. eman1974

    eman1974 Member

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    I've started this thread in order for you fine experts to help me along my carb rebuild. This is my first carb rebuild, so bare with me.

    I ordered all the parts I "need." from chacal - mostly seals, screws and the rebuild kits.

    So my first issue is part identification so that I know which parts I actually have replacements for.
     

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    eman1974, Mar 10, 2012
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  2. tskaz

    tskaz Active Member

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    The rubber o-rings on the "T" are fuel rail o-rings, you need 6 per carb rack.

    The T and straight fittings made of brass all take these o-rings.

    These parts are what make up the fuel rail.

    The brass parts can be polished with a scotchbrite pad.

    As for the screw on the throttle arm, take it to your local bolt supply and you should be able to get a stainless screw for less than 50 cents.
     
    tskaz, Mar 10, 2012
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  3. eman1974

    eman1974 Member

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    Well right now it looks like I may have the wrong make of carbs for my bike. Thought they were Hitachi - but looks like they're Mikuni....
     
    eman1974, Mar 10, 2012
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  4. tskaz

    tskaz Active Member

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    Re: Newb Carb Rebuild - Thread for questions - Help apprecia

    From what I can see in the pics:

    At least one carb hat is from a Hitachi. Mikuni carb hats were not slanted.

    Also, Mikuni carb bowls did not have a nipple on the drain port. Can't see which style bowls are on yours.

    Hitachi carb bowls
    [​IMG]

    Hitachi hats
    [​IMG]

    Side view with Hitachi symbol on carb body
    [​IMG]
     
    tskaz, Mar 10, 2012
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  5. eman1974

    eman1974 Member

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    Re: Newb Carb Rebuild - Thread for questions - Help apprecia

    Hmm, ok, I see the Hitachi mark now.
    However, what is causing my confusion is carb #1. The one on my bike is different. See the attached pic.
     

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    eman1974, Mar 10, 2012
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  6. tskaz

    tskaz Active Member

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    Hmmm. Have you measured both sets? They may not be the same size.

    I would measure the openings and send the measurements and those two pics to Len - info "at" xj4ever "dot" com and ask him. If anyone would know it would be him.
     
    tskaz, Mar 10, 2012
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