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Two outside cyliners firing only.

Discussion in 'XJ Technical Chat' started by metro23, Apr 29, 2009.

  1. metro23

    metro23 New Member

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    Hi,

    I have a 1983 XJ1100 maxim. It was running fine last year.
    I tried to start it. After much time and effort it started
    but only the two outside cylinders are firing. I checked by
    feeling the exhaust pipes and the two inside ones are cold.
    It runs really rough.
    Has anyone else had the same problems? Anyone have
    suggestions as to how to fix this problem?
     
    metro23, Apr 29, 2009
    #1
  2. ktcubed

    ktcubed Member

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    Spark to middle two comes from same coil. Have you checked for spark yet?
     
    ktcubed, Apr 29, 2009
    #2
  3. bill

    bill Active Member

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    Check for spark as noted and check the plugs - they could be fouled. If you have spark check for fuel.

    Spark - Fuel and air. Could be a lot of things if no spark but we can start there
     
    bill, Apr 29, 2009
    #3
  4. jbreaithwaite

    jbreaithwaite Member

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    I have a similar problem. I have been conversating with some of the other members on possible issues. Mine is relative to no spark from one coil. After testing, I found the coil IS good. I am now checking/replacing pick ups. I plan on pulling it back apart this weekend to check for any pinched wires and cleaning all grounds (again). I am not getting a pulse from the one pickup side. It is not sending signals to the CDI.

    The thread I think is labeled "No spark, please help".

    Good Luck!

    Jason
     
    jbreaithwaite, Apr 30, 2009
    #4
  5. SirHedgehog

    SirHedgehog Member

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    Test the coils by switching around the leads temporarily.
    I had this problem and it was one of the coils.
     
    SirHedgehog, Apr 30, 2009
    #5
  6. metro23

    metro23 New Member

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    Awesome,

    Okay, I will check for spark and check the leads/coil.

    Thanks...
     
    metro23, May 1, 2009
    #6

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