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  1. 11-15-2020, 07:01 AM #1
    pschlosser
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    Spark plug electrode opening

    I have a 225hp 2014 Mercury optimax proxs 2 stroke. When installing new spark plugs does the electrode opening have to be indexed a certain direction?
    Last edited by pschlosser; 11-15-2020 at 07:31 AM.
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  2. SilverFox579
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    #2 11-15-2020, 08:38 AM
    No need to index Mercury plugs, that's a "rude" thing. Gap them correctly, install, torque to 20lb ft, and press on.
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    Phil
    '09 Hewescraft ProV
    '09 150 Optimax

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  3. pschlosser
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    #3 11-15-2020, 09:18 AM
    Thank you!
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  4. EuropeanAM
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    #4 11-16-2020, 11:01 AM
    Good information above.

    Equally important is the CORRECT spark plug, gapped correctly.

    If you would, please take a few moments to review the Announcements at the top of the Forum, and be sure to provide the Required Info (serial number) when posting. Thanks!


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