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Loud knocking in F15

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  • Loud knocking in F15

    My engine is running normally but there is a loud irradic knocking like something is lose inside. I pulled the cowling off and cannot see anything lose. Should I start pulling apart the head and see if its a value or something?

  • #2
    Check oil level and condition and remove/inspect each spark plug for possible indications.

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    • #3
      Found it

      In neutral everytime it knocked the propellor kicked so it must be in the lower unit.

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