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150hp ox66 rpm surge

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  • 150hp ox66 rpm surge

    Lately my 2000 150hp ox66 rpm surge when I hit a wave .
    I be cruising at 4000rpm hit a wave rpm drop a few 100
    then surge up to 4400 And back down to 4000.
    It happen every time I hit a wave . It almost sound like the
    prop pop out the water. I have change vst filter , service and clean the
    O2 sensor. I have 2 new LP fuel pump that I'm
    planning to change out . If anyone have any info
    or how to repair this issue please let me know.

    Thank

  • #2
    I would recheck vst contents

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    • #3
      Thanks for your reply . I will recheck it.
      I change the vst filter about 4 month ago.

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      • #4
        If you use ethanol.....check monthly

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