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  1. #1
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    when to change spark plugs in 250 pro xs

    how often should you change plugs or how many hours?
    04 521VX 250 Pro XS
    14 521C 250 Pro XS

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

    Re: when to change spark plugs in 250 pro xs (bass.man65)

    See the following post, regarding ANNUAL MAINTENANCE recommendations:

    http://www.bbcboards.net/zerot...gines

    For future reference, this post (and many other useful items) can be found under the "Commonly Asked- Commonly Used Items" sticky (pinned near the top of this forum).




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