sxr800, temp sensor bypass or R&D timing advance plate??? - Page 2
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  1. #11
    PWCToday Newbie
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    Re: sxr800, temp sensor bypass or R&D timing advance plate???

    Correction, The air temp sensor is jumper-ed the water temp sensor is open.

  2. #12
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    Re: sxr800, temp sensor bypass or R&D timing advance plate???

    Looking in the service manual I wonder if you put a 2.47 k resistor in place of the jumper the ECU would always think it was 68 degrees F, but not sure how the circuit works...

    Per Manual:
    Inlet Air Temperature Sensor Resistance
    Water Temperature Sensor Resistance
    10C (50F) Approx. 3.74 k��
    20C (68F) Approx. 2.47 k��
    50C (122F) Approx. 0.833 k��
    70C (158F) Approx. 0.448 k��

  3. #13
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    Re: sxr800, temp sensor bypass or R&D timing advance plate???

    no resistence gets you 6 degree advance in other words jumpered

    the numbers you looking at is for water not air
    Last edited by RacerX2; 05-16-2017 at 07:34 PM.
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  4. #14
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    Re: sxr800, temp sensor bypass or R&D timing advance plate???

    Pretty sure POST #12 is for the Air temp sensor...
    The wording is goofy, as pulled from a table in the manual,
    water temperature = test water temp
    sensor resistance = actual resistance reading when doing the test

    These 2 items are separate columns
    Water temperature / sensor resistance

    Below I split them up for the water temp sensor table.

    Water Temperature Sensor Resistance:
    Water Temperature Sensor Resistance
    20C (68F) Approx. 293 k��
    50C (122F) Approx. 78.5 k��
    90C (194F) Approx. 18.1 k��
    100C (212F) Approx. 13.2 k��

  5. #15
    Top Dog RacerX2's Avatar
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    Re: sxr800, temp sensor bypass or R&D timing advance plate???

    seems weird 158F air temp are they jet skiing in hell
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  6. #16
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    Re: sxr800, temp sensor bypass or R&D timing advance plate???

    They are just calling this out for test purposes not that the air temp would be 158 deg, note the water temp sensor "test" temperature goes to 212, you would have to put it in oil or something to get it over 212...

  7. #17
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    Re: sxr800, temp sensor bypass or R&D timing advance plate???

    water boils at 212F i have seen boiling water steam come out of the side pissers iirc the temp sensor cuts the ignition at 203F
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