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  1. #1

    Join Date
    Jul 2007
    Location
    Hilton Head island SC
    Posts
    99

    Got a tough question for a 781 RFI

    BUDS won't read my 3D's mpem so diagnosing it that way will be impossible. The new version wouldn't recognize the dess protocol....
    It's running rich as heck, I know this because of the smell of the exhaust and the dark powdery carbon on the plugs and the way it runs. It will start and run but rough. I suspected right away a faulty air pressure sensor. And I'm wondering if anyone knows what the ohm values are supposed to be between pins 1-2-3 I would much appreciate it.


  2. #2

    Join Date
    May 2007
    Location
    Northern VA
    Posts
    85
    dont know the resistance values off hand

    however, buds doesnt use the dess protocol on the newer rfi's, put it in kw2000 and plug it into the diagnostic port, power up the system with a lanyard and it should read fine. I forget where the diagnostic plug is on those, its a little difficult to find i remember. I only see maybe 1 or 2 3d's a year so its usually not an issue. I want to say the plug is near the oil tank.

  3. #3

    Join Date
    Jul 2007
    Location
    Hilton Head island SC
    Posts
    99
    Trust me I've already been through the manual. I've seen the port in the book. I went ALL THROUGH my wiring harness and was unable to locate it. There is no diagnostic port on this ski. Unless I'm blind and just missing it.

  4. #4

    Join Date
    Dec 2006
    Location
    Cartersville, GA
    Posts
    59
    You are missing it.

  5. #5
    TX21's Avatar
    Join Date
    May 2007
    Location
    North Texas
    Posts
    988
    +1
    7
    It prob uses the lanyard port then. Thats what my GTX-RFI uses and it has a 787. Did they change that on the 3D's?

  6. #6

    Join Date
    May 2007
    Location
    Northern VA
    Posts
    85
    they changed it for the 3d's.....

  7. #7
    Banned User
    Join Date
    Jul 2006
    Location
    upstate NY
    Posts
    289
    Is the ski have the Maint light on? I would check the rave valves sounds like they may be stuck which is a common and most likely promblem on that motor. The old programmer will read the codes also.

  8. #8

    Join Date
    Jul 2007
    Location
    Hilton Head island SC
    Posts
    99
    man that crank was spun like me in the good old days. TDC on bothrods is supposed to be 6 oclock and 12 oclock one was 12 and the other was 7oclock

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