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Which rotary valve cover to buy?

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  • Which rotary valve cover to buy?

    My 657x locked up and someone talked me into putting a 720 in my boat. I never got it to run right. I used my 657x stator and rotary valve cover and 44mm mikunis. I want to buy a new rotary valve cover but dont know which one. The numbers on my 657x cover are 6810-527

  • #2
    Re: Which rotary valve cover to buy?

    657X = 6810-520
    720 Dual carb = 6810-527
    720 Single Carb = 6810-522 and 6812-530

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    • #3
      Re: Which rotary valve cover to buy?

      Awesome. Thanks. I have the right cover, i ground the flat part down but didnt adjust the depth (i didnt take any off the lip).

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