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Do all new 4 stroke outboard requre valve adjustments?

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  • Do all new 4 stroke outboard requre valve adjustments?

    I was under the impression that the new 4 stroke outboards need valve inspections.

    I have a 2004 115 EFI Suzuki made johnson and I just purchased a Suzuki service manual and it says nothing of valve adjustments, just your basic Oil, spark plugs, fuel filter, impeller ect..

    Does that sound right?

  • #2
    Re: Do all new 4 stroke outboard requre valve adjustments?

    not too sure about your Motor, but I would reckon a valve adjustment on a Yamaha would be beyond most home handymen.

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    • #3
      Re: Do all new 4 stroke outboard requre valve adjustments?

      Right, I would never do that myself but from what I can tell I never have to have it done based on the maintenance chart they provided.

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      • #4
        Re: Do all new 4 stroke outboard requre valve adjustments?

        The service manual for my '08 Suzy indicates valve check and adjustment is required. Are you looking at a "Service" manual or "Operators" manual. Big difference. Inspect at 20 hours and every 200 hours after that.

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        • #5
          Re: Do all new 4 stroke outboard requre valve adjustments?

          Wow, they still have manually adjusted valves on modern engines? My '71 VW van had those... I thought valves were hydraulic now and required no adjusting. I guess outboards have not caught up to auto's in that area then.
          Steve.

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          • #6
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            Re: Do all new 4 stroke outboard requre valve adjustments?

            Yeah, I'm also surprised that it wouldn't have hydraulic lifters. Shows what I (don't) know.

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