Pitting

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  • DomsKat550
    Forum Apprentice
    • Nov 2023
    • 47
    • Patchogue NY

    #1

    Pitting

    Was able see an intake valve pretty clearly while checking my plugs, pitting on it, what do you guys think? Bike starts right up and runs idles good.
    Attached Files
  • DomsKat550
    Forum Apprentice
    • Nov 2023
    • 47
    • Patchogue NY

    #2
    Here is plug pic
    Attached Files

    Comment

    • Nessism
      Forum LongTimer
      GSResource Superstar
      Past Site Supporter
      Super Site Supporter
      • Mar 2006
      • 35790
      • Torrance, CA

      #3
      Looks bad. Reminds me of an engine with neglected valve adjustments.
      Ed

      To measure is to know.

      Mikuni O-ring Kits For Sale...https://www.thegsresources.com/_foru...ts#post1703182

      Top Newbie Mistakes thread...http://www.thegsresources.com/_forum...d.php?t=171846

      Carb rebuild tutorial...https://gsarchive.bwringer.com/mtsac...d_Tutorial.pdf

      KZ750E Rebuild Thread...http://www.thegsresources.com/_forum...0-Resurrection

      Comment

      • GregT
        Forum Sage
        • Jul 2009
        • 3541
        • New Zealand

        #4
        The valve looks like many I've seen since lead was phased out of fuel.

        If the motor still has compression within the limits in the manual, I'd keep riding it.

        Comment

        • Rob S.
          Forum Guru
          Past Site Supporter
          • Dec 2013
          • 9393
          • New York City

          #5
          Originally posted by GregT
          The valve looks like many I've seen since lead was phased out of fuel.

          If the motor still has compression within the limits in the manual, I'd keep riding it.
          I wouldn't even check the compression. Bottom line is: "starts, runs, idles good..." so, "if it ain't broke, don't fix it."

          Does it pull strong to redline in every gear except top? If so, then just ride it.
          1982 GS1100E V&H "SS" exhaust, APE pods, 1150 oil cooler, 140 speedo, 99.3 rear wheel HP, black engine, '83 red

          2016 XL883L sigpic Two-tone blue and white. Almost 42 hp! Status: destroyed, now owned by the insurance company. The hole in my memory starts an hour before the accident and ends 24 hours after.

          Comment

          • DomsKat550
            Forum Apprentice
            • Nov 2023
            • 47
            • Patchogue NY

            #6
            Thanks for the varied responses! Since I'm more of a paint/fabricator than mechanic I will go for the just ride it and if it turns into an unrideable mess then I will open engine up.

            Comment

            • Nessism
              Forum LongTimer
              GSResource Superstar
              Past Site Supporter
              Super Site Supporter
              • Mar 2006
              • 35790
              • Torrance, CA

              #7
              Originally posted by DomsKat550
              Thanks for the varied responses! Since I'm more of a paint/fabricator than mechanic I will go for the just ride it and if it turns into an unrideable mess then I will open engine up.
              Did you check and adjust valve clearances as needed?
              Ed

              To measure is to know.

              Mikuni O-ring Kits For Sale...https://www.thegsresources.com/_foru...ts#post1703182

              Top Newbie Mistakes thread...http://www.thegsresources.com/_forum...d.php?t=171846

              Carb rebuild tutorial...https://gsarchive.bwringer.com/mtsac...d_Tutorial.pdf

              KZ750E Rebuild Thread...http://www.thegsresources.com/_forum...0-Resurrection

              Comment

              • DomsKat550
                Forum Apprentice
                • Nov 2023
                • 47
                • Patchogue NY

                #8
                Yes, some were on tighter side, shimmed to make them on wider end of range gap, .08 .09 mm

                Comment

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