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  1. #1

    STX-12F Performance Issues

    I have two identical 12F's bought the same day maintained exactly the same with 165 Hrs on both. One tops out at 6100 rpm's about 45 mph. The other 6700 rpm about 53 mph. Both start and run smooth just different top ends. Any Thoughts? Thanks

  2. #2
    steve45's Avatar
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    Welcome aboard, blt!

    Could be a plugged up fuel filter.

    Read post 7 of this thread: http://greenhulk.net/forums/showthre...95#post3077295


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