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Thread: 96 sl700

  1. #1

    96 sl700

    I have a 96 sl 700 lost spark last fall how do i tell if it has the updated cdi,stator?

    So far i replaced the coil and got a cdi with out the computer port the one i took out has the port on it and still no spark.

    Any help is appreciated and thanks


  2. #2
    Click avatar for tech links/info, donation request K447's Avatar
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    Welcome to the Hulk

    You can tell which generation of domestic CDI you have by the part number marked on the CDI casing. If there is a handwritten number, that usually means it is a Gen III or 'Update Kit' CDI.

    Another method is to ohm check the stator. The Gen III and update stators have very different coil ohm readings from the original (Gen I and Gen II) stators.

    Further info can be found through my signature links

    BTW, make VERY sure the battery is strong. A weak battery is a common cause of no spark.

  3. #3
    Tested stator and it is good still no spark how long do cdi's last?

  4. #4
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    What is the part number on the cdi?

  5. #5
    Quote Originally Posted by BryanP View Post
    What is the part number on the cdi?
    I'll let you know on sat ski is at a buddy's house

  6. #6
    Where can i get the updated wire diagram for the cdi?

  7. #7
    casey67's Avatar
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    If your CDI had the com port,you have the updated parts.
    The old style parts ( no com port) will not work.
    The wiring for the update kit is exactly the same as the original stuff and wiring diagram.

    There was a service bulliten that if it didn't want to restart hot, it recommended switching the CDI Red with purple stripe wire from the R/Pur terminal to the Orange terminal.
    I have seen this happen with the updated CDI.

    If it is wired this way already
    Since the 96 700,does not have a bilge pump button-to bypass the LR module.
    Try unplugging the CDI power wire (red/pur) and plugging it back in on the R/pur terminal.See if it starts/has spark.

    Please let us know exactly what happens.

  8. #8
    Click avatar for tech links/info, donation request K447's Avatar
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    Quote Originally Posted by casey67 View Post
    ... The wiring for the update kit is exactly the same as the original stuff and wiring diagram...
    I don't have my notes at hand, but I seem to recall the ignition coil primary wiring is slightly different on the update kit compared to the original two cylinder ignition wiring.

    In any case, the part number on the CDI will tell the story regarding which version is installed.

    And the wiring diagrams are available around here.
    Last edited by K447; 04-09-2011 at 08:06 PM.

  9. #9
    Need help, I was told that i had to leave spark plugs in to check for spark?

  10. #10
    Click avatar for tech links/info, donation request K447's Avatar
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    Quote Originally Posted by durango77 View Post
    Need help, I was told that i had to leave spark plugs in to check for spark?
    A paradox, no?

    You can use an inline spark tester (under $20 at any automotive parts store, or Harbor Freight).
    Click image for larger version. 

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    Or you can use your spark plugs. The trick is that BOTH spark plugs must be connected to the plug wires and the metal shells of BOTH spark plugs must be grounded (touching) to the engine bare metal.

    The reason is that the ignition system uses the engine itself as part of the electrical circuit for the spark.

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