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Seems I have a problem with idle.

Discussion in 'XJ Technical Chat' started by JPaganel, Apr 4, 2013.

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  1. JPaganel

    JPaganel Well-Known Member

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    JPaganel, Apr 13, 2013
    #61
  2. JPaganel

    JPaganel Well-Known Member

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    You put your YICS tool in
    You take your YICS tool out
    Then you do the hokey pokey
    And curse everything around


    Re-did sync this time remembering the YICS.

    Same damn thing. Climbs to 3000.
     
    JPaganel, Apr 13, 2013
    #62
  3. quebecois59

    quebecois59 Well-Known Member

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    Can't remember if you said you tried to sync without the YICS tool or not, it would be interesting to see if it would make any difference.
     
    quebecois59, Apr 13, 2013
    #63
  4. 750E-II_29Rbloke

    750E-II_29Rbloke Active Member

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    Yes, that was just done not an hour ago quebecois (by accident, but didn't fix anything) That's the reason I brought out my best syncing pun ;)
     
    750E-II_29Rbloke, Apr 13, 2013
    #64
  5. quebecois59

    quebecois59 Well-Known Member

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    I understood that he sync'ed with the YICS tool in but the YICS chamber opened, it doesn't mean the same to me that with the chamber closed but without the YICS tool in. Do I miss something here?
     
    quebecois59, Apr 13, 2013
    #65
  6. 750E-II_29Rbloke

    750E-II_29Rbloke Active Member

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    Either you missed something or I did, I read "forgot to plug the YICS" as he forgot to use the YICS tool.... Could be either, but I'd think having the YICS passage open would be glaringly obvious in the way the bike ran...
     
    750E-II_29Rbloke, Apr 13, 2013
    #66
  7. JPaganel

    JPaganel Well-Known Member

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    That would be correct. I had the plugs in, and the tool out.


    (Heh. "My tool was out". In some jurisdictions that's indecent exposure... )
     
    JPaganel, Apr 14, 2013
    #67
  8. bigfitz52

    bigfitz52 Well-Known Member Premium Member

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    Start over.

    Re-do your bench sync, ensuring that you have enough adjustment left on the main idle adjuster knob to back it all the way off and then some.

    Double-check all your intake manifolds while the carbs are off. Re-verify your float levels, wet. If they're good, re-checking won't take long.

    BE SURE THE BIKE IS FULLY WARMED UP before doing the running vacuum sync.

    And don't make the mistake I'm sure we've all made: DON'T OVER-ADJUST. Tweak, blip, allow to settle. Nudge, blip, allow to settle.

    Tweak, nudge. Not "crank" on the screws. If you did a decent bench sync doing the vac sync will only involve some very SMALL adjustments. You can drive yourself right out of range if you're not careful; then all you can do is...

    Start over.
     
    bigfitz52, Apr 14, 2013
    #68
  9. JPaganel

    JPaganel Well-Known Member

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    Talked to a guy who suggested that the problem might be needle valves that are not sealing and letting too much gas in.

    I haven't replaced the needles, they looked to be in good shape. Can looks be deceiving and this be the case?
     
    JPaganel, Apr 18, 2013
    #69
  10. jmilliken

    jmilliken Well-Known Member

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    what did you use to do your bench sync(s)? I though you mentioned a paperclip or wire? That would open up your butterflys too much. use a strip of business card paper.....
     
    jmilliken, Apr 19, 2013
    #70
  11. jmilliken

    jmilliken Well-Known Member

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    also, what's your plug color like?
     
    jmilliken, Apr 19, 2013
    #71
  12. JPaganel

    JPaganel Well-Known Member

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    No, that wasn't me. I used paper.

    I'll check the plugs.
     
    JPaganel, Apr 19, 2013
    #72
  13. Gitarded

    Gitarded Member

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    Well What happened?
     
    Gitarded, May 15, 2013
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