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MY 82 550 SLAMS TO HIGH IDLE WHEN I START IT UP??

Discussion in 'XJ Technical Chat' started by Dahitman, Aug 19, 2010.

  1. Dahitman

    Dahitman New Member

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    Hey guys and gals i need some help... I have a 1982 Xj 550 Resto with mods i have a sick carb ( hating life ) and i have a problem when i start up my bike i think that it may be an air leak but im not sure and yes Unfortunatley i messed with the PILOT SCREWS, i just put new Carb holders on and i have a Rebuild kit in the mail but when i crank it over it shoots up ALLL the way to high IDLE i checked all the linkage and no frays choke is in the right spot and i still get suction from the jets !!!!


    Help a shade tree mechanic out LOL!!!
     
    Dahitman, Aug 19, 2010
    #1
  2. RickCoMatic

    RickCoMatic Well-Known Member

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    Anything over 1800 means the Throttles are open and you are getting Main Jet Supply.

    If you h ad the Carbs off ... look to see that the attaching linkage isn't jammed up under the Cylinder Head.

    Followed by:
    Clamps fowling linkage
    Wrong Cable
    Idle Adjustment Rod to far open
    Carbs not synced
     
    RickCoMatic, Aug 19, 2010
    #2
  3. Dahitman

    Dahitman New Member

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    Ok went through the list, Carbs are all synced and the trottle screw is out just enough for it to start i went through the linkage and its all free even when i reseat the carbs and all the cylinder heads are clear clamps dont look like they are in they way but lemme try it out
     
    Dahitman, Aug 19, 2010
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  4. Dahitman

    Dahitman New Member

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    just started it up and same thing mabey the pilot screws for air fuel? ill have to take them to the shop to get dialed in ?
     
    Dahitman, Aug 19, 2010
    #4
  5. KenBoP2

    KenBoP2 Member

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    Try checking where the throttle cable connects to the accelerator, that was loose on mine and it would open the throttle. Tighten the lockdown (jamb) nut to keep it from doing that.
     
    KenBoP2, Aug 19, 2010
    #5
  6. wizard

    wizard Active Member

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    If you start the bike with enrichment & NO throttle & the revs race high, I would look at the diaphrams & an air leak.
     
    wizard, Aug 19, 2010
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