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  1. #1
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    250 XS vs 250 Pro XS

    What is the difference in the rev limiters on these motors
    SUSHII
    21XRS/SHO

  2. Mercury 3L/4 Stroke/Verado Moderator EuropeanAM's Avatar
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    #2

    Re: 250 XS vs 250 Pro XS (KRAMER 21XD)

    <TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by KRAMER 21XD &raquo;</TD></TR><TR><TD CLASS="quote">What is the difference in the rev limiters on these motors</TD></TR></TABLE>

    None. Current (and recent) production engines utilize the same PCM calibration.

    2003-2005 XS models WERE different, however.



    Dual Mercury Master Technician- for Mercury Outboards, Mercruiser and Mercury Racing at European Marine in Greenville, SC.
    Still consider myself a "Marine Apprentice" after 48 years (learn something new every day).
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  3. Member
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    #3

    Re: 250 XS vs 250 Pro XS (EuropeanAM)

    What is it on a 03 250 XS
    SUSHII
    21XRS/SHO

  4. Mercury 3L/4 Stroke/Verado Moderator EuropeanAM's Avatar
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    #4

    Re: 250 XS vs 250 Pro XS (KRAMER 21XD)

    According to the service manual, the recommended WOT range was 5500-5800. Rev limiter at 5900.

    Some calibrations vary.... so it would be wise to have the calibration information read from "one specific ECM/PCM" in this case.



    Dual Mercury Master Technician- for Mercury Outboards, Mercruiser and Mercury Racing at European Marine in Greenville, SC.
    Still consider myself a "Marine Apprentice" after 48 years (learn something new every day).
    Mercury Parts, Mercury Outboards, Smartcraft & Accessories, Injector Service, TDR Reeds- BBC Sponsor

  5. Member
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    #5

    Re: 250 XS vs 250 Pro XS (EuropeanAM)

    Thank you I appreciate your help
    SUSHII
    21XRS/SHO