Thread: 250xb ot652817

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  1. 10-17-2020, 02:54 PM #1
    250xb river rat
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    250xb ot652817

    whats best plugs for 2003 250xb
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  2. Bryanmc57
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    #2 10-17-2020, 03:38 PM
    You can find your answer here I bet...

    http://www.bbcboards.net/showthread.php?t=20401


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  3. EuropeanAM
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    #3 10-19-2020, 03:34 PM
    +1

    QL77CC (aka: 941M) is the correct plug.


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  4. 250xb river rat
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    #4 10-20-2020, 10:24 AM

    fuel

    do I need to run 93 octane in the 250 xb and also does the 225 efi require the same
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  5. EuropeanAM
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    #5 10-21-2020, 10:18 AM
    250 XB requires 92 or higher octane fuel at ALL times.

    The 225 EFI (standard, un-modified) requires 87 octane.


    Dual Mercury Master Technician- for Mercury Outboards, Mercruiser and Mercury Racing at European Marine in Greenville, SC.
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