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  1. #1

    bummed on my pro cdi

    About 6 months ago I bought a pro cdi from Watcon well after spending hours swapping it and the box to a larger than 92 unit it wouldn't fire
    so Randy arranged for another cdi to show up That wouldn't fire either? so it became popular consensus that the pro cdi needed the newer stator so 100 bucks later I finally swapped stators(97 780 i think)
    and wouldn't u know it neither will fire? put in the old cdi and runs fine any guesses? I fallowed this to a tee

    Pro CDI to 650/750/780 wiring directions.
    ph2ocraft
    I'm showing the working RPM's of the 97 PRO785 is 7500RPm and the limiter is set at 7800 RPM. It also has 32 degrees advance at 3,000 RPM so I think it's going to work VERY well with the triples on the 750 (I can't wait). We'll see if I'll run it on 92 or if I need a little VP110.

    The PRO wires up much easier than I initially thought and goes as follows.
    Blue/Red from CDI to Blue/Red from the stator
    Red/White from CDI to Red/White from the stator
    Green/Red from CDI to Green/White from Stator
    White/Yellow from CDI to White/Yellow from Stator
    Black/Yellow from CDI to Black/Yellow from Stop Switch
    Black to Battery Ground
    Black to Box Ground

    I then seperated the wires from the coil pack and wired with individual pig tails as follows.
    Black/Green from CDI to Black/White on PTO Coil
    Black/Orange from CDI to Black/White on Center Coil
    Black/White from CDI to Black/White on MAG Coil
    Black from CDI to Black from Coil Grounds.

    I capped off the following wires from the CDI as I have no use for the exhaust valve electrical signals
    White/Black
    White/Red
    Light Green
    Green
    Red/White

    The last couple of wires
    Tan from CDI to Tan from Temp sensor
    Red/Purple from CDI to Red/purple at LR23
    Yellow/Black from CDI to Yellow/Black from CDI (you read correctly)
    __________________


  2. #2
    Water Bum Rodneyae's Avatar
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    Not sure Z... As you remember the problems I had with the General. But, when I put it in the 780 SLT it works just fine. I was just thinking that it was in the stator. But it might be something with the cicuritry of the box. If you figure out anything let me know.


    Thanks,
    Rodney

  3. #3
    Thats what I'm thinking also! I plugged in a 780 cdi and it was a no go either!

  4. #4
    ph2ocraft's Avatar
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    z, what year is your 650?
    I installed one on a 94 and it worked with no problems. I want to do a little digging on the differences between the 94 and what year you have.
    Yours is the only one I'm aware of that doesn't work so I'm pretty damn curious.

  5. #5
    Water Bum Rodneyae's Avatar
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    If I remember his is a 92.

  6. #6
    100 MILES OF HEAVEN AND I AM SMACK IN THE MIDDLE KEYZBUM's Avatar
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    cdi

    WHAT ARE THE PART #"S ON THE BACK OF "THE OLD CDI" (that fires)?
    MATTMAN

  7. #7
    it is a 92 but it has a new digital stator and tried three CDI's I'm thinking it might be either the coils? but don't think so or the way the 92 uses the voltage switches/regulators?

  8. #8
    ph2ocraft's Avatar
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    Let me poke around a little bit, I think I'll have a 92 here in the next day or two.

  9. #9
    Quote Originally Posted by KEYZBUM View Post
    WHAT ARE THE PART #"S ON THE BACK OF "THE OLD CDI" (that fires)?
    MATTMAN
    F8t 16271

  10. #10
    She likes the bike. But the ski gets her wet!!!! xlint89's Avatar
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    Z, what electrical box did you get to swap?

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