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  1. 06-03-2023, 06:16 PM #1
    bobby.leejr
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    2007 225 Mercury Optimax Pro XS Spark Plug Number

    Hello Everyone,

    Can someone tell me the spark plug number for my motor? I'm finding mixed answers online and I believe the shop may have installed the wrong size which would help explain the fouling. Thanks for the help.

    2007 Mercury 225 Optimax Pro XS
    Serial: 1B458912
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  2. Bob G.
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    #2 06-03-2023, 07:34 PM
    Read down to the spark plug section.

    https://www.bbcboards.net/showthread.php?t=20401
    2006 Triton TR-21 XD, Mercury 225 Pro XS, S/N 1B287870
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  3. bobby.leejr
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    #3 06-03-2023, 08:50 PM
    Thank you!!!
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