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Needle jet wear

Discussion in 'XJ Technical Chat' started by Nighthawk, May 3, 2009.

  1. Nighthawk

    Nighthawk Member

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    Well I think I found the culprit for my carb hang. Mt third time tearing down. Needle jets 2 each have gouges from hitting the needle jet main going in and out. Wonder why only 2 would get the wear and not the other 2.

    Well I've done 2 complete cleanings I guess I can say complete. I am not going back togeather until I replase the shaft seals and fuel tube orings. Then I have gone over the carbs top to bottom with a fine tooth comb.

    Going to try to do bench sync before install.

    Keith
     
    Nighthawk, May 3, 2009
    #1
  2. bill

    bill Active Member

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    You mean the needles on the bottom of the slides? Check if the are straight and aligned properly.
     
    bill, May 3, 2009
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  3. Nighthawk

    Nighthawk Member

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    Bill yes the needles on the bottom of slide. I took them out and rolled them on a piece of glass and all 4 needls are straight. Just trying to figure out how 2 can get gudges and 2 didnt. yet my clunk test was good. But when I take the diaphram unit and slide it down on needle jet main housing i can feel it catch when it its the gouges. I think this is the cause for idle hang up. Problem is so far unless Len can find some used ones the needles are obsolete, or as I can say not manufactured any longer..

    4H7-14917-13-00
     
    Nighthawk, May 3, 2009
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