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Please critique these 83-86 cylinder head removal pics

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    #16
    Wow all that looks terrible.

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      #17
      What's the seats look like under those valves? If there are no impact marks on the pistons they have to be burnt but they look "chipped" to me.
      I can top that one though
      1983 GS 1100E w/ 1230 kit, .340 lift Web Cams, Ape heavy duty valve springs, 83 1100 head with 1.5mm oversized SS intake valves, 1150 crank, Vance and Hines 1150 SuperHub, Star Racing high volume oil pump gears, 36mm carebs Dynojet stage 3 jet kit, Posplayr's SSPB, Progressive rear shocks and fork springs, Dyna 2000, Dynatek green coils and Vance & Hines 4-1 exhaust.
      1985 GS1150ES stock with 85 Red E bodywork.

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        #18
        please pop a broken valve and its neighbor out for pic...

        The valve could simply be worn out, if you take them off is there a groove worn all around the valve face?

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          #19
          A popped out poppet

          The less damaged valves show a smooth seat. The one under this valve would need to be re-cut for sure.

          I measured the valve stem and it is right on spec throughout the length so its still good................



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            #20
            That valve is burnt. It overheated then a chunk broke off.
            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

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              #21
              Zero compression indeed!
              1983 GS 1100E w/ 1230 kit, .340 lift Web Cams, Ape heavy duty valve springs, 83 1100 head with 1.5mm oversized SS intake valves, 1150 crank, Vance and Hines 1150 SuperHub, Star Racing high volume oil pump gears, 36mm carebs Dynojet stage 3 jet kit, Posplayr's SSPB, Progressive rear shocks and fork springs, Dyna 2000, Dynatek green coils and Vance & Hines 4-1 exhaust.
              1985 GS1150ES stock with 85 Red E bodywork.

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