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Help Which Jet Needle goes where??? ZXR250

Discussion in 'Kawasaki 250cc In-line 4's' started by TonyZXR, Apr 18, 2018.

  1. TonyZXR

    TonyZXR Well-Known Member

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    ok soo , cleaned the carbs again , adjusted the float heights from 17mm to 13mm , changed the jet needles to the n76a on the outside and n52x on the inside , put them back on the bike , checked for air leaks (none luckily ) but i did notice the balance went out of whack for some reason even though i haven't changed it . Dialed that in and she idles very nicely now , stable idle and will idle from cold as well as start easily. Also made some air box gaskets out of o-ring material that i had . Seems it was running good.........:D
    Until it started misfiring and died then it wouldn't start again when it warmed up :confused:. Pushed it home lucky i was only 3 blocks away . i suspect it's an ignition issue again :(. I did muck around that area while tuning the carbs , i haven't checked the ignition leads but they probably need attention and i think i might be losing power to one coil like before anyway i'll do some diagnosis tomorrow
     
    Last edited by a moderator: Apr 19, 2018
  2. GreyImport

    GreyImport Administrator Staff Member The Chief Contributing Member

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    Thats opposite to your other post :D

    1989-1990 A1-A2-B1-B2 Jet needle
    :outside cylinders: n76a
    :inside cylinder :n52x
     
  3. TonyZXR

    TonyZXR Well-Known Member

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    whooops thankyou need to correct my typo

    EDIT: fixed
     
    Last edited by a moderator: Apr 19, 2018
  4. GreyImport

    GreyImport Administrator Staff Member The Chief Contributing Member

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  5. sharky

    sharky Well-Known Member

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    I just had a look at my A model carbs that came with the water plumbing attached,they have the N76B needles across all four 20180419_122342-1.jpg Screenshot_2018-04-18-16-34-07-1.png
     
  6. TonyZXR

    TonyZXR Well-Known Member

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    Should add that to the other thread! So its either 4 n76b or the other pairs
     

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