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How to part the cylinder head from the cylinders - stuck gasket - 1980 gs550e

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    Bike still going fine - 400 miles down the line.
    The power difference is staggering - Never thought by doing a full upper engine overhaul
    could make such a massive difference. - I had played around with carb sync, timing ...... and previously had
    never got it to tickover correctly. It is now sweet.

    Now need another project bike to sort out.
    I want a 1980's ish GS750 or a 1980's ish GSX 250 (my second ever bike) needing attention.
    UKJULES
    ---------------------------------
    Owner of following bikes:
    1980 Suzuki GS550ET
    1977 Yamaha RD 250D
    1982 Kawasaki GPZ 750 R1
    1980 Suzuki GSX 250E

    Comment


      Just an update on this one since top end rebuild. 1500 miles and all ok. Just in case people wondered
      if my bike was now on the side of a ditch.

      - re athena gaskets and shim ground down to 1.9mm from stock shim.

      Bike still running the best I have known since top end rebuild. Superb performance still.

      - No oil leaks from gaskets
      - New (cut in half) exhaust circular clamp things) work perfectly (thanks for that one !)

      Issues:
      Have not been able to turn my wrist round past 7000 revs.
      Thats good enough for a cruise along the A39 to Lynmouth ! (uk)
      any other bike I can but not on this one that is worth too much !
      UKJULES
      ---------------------------------
      Owner of following bikes:
      1980 Suzuki GS550ET
      1977 Yamaha RD 250D
      1982 Kawasaki GPZ 750 R1
      1980 Suzuki GSX 250E

      Comment


        Just an update - on this.

        Athena gaskets (base and head) still fine and no issues with my ground down shim (yes i know i should not have done it)
        (remember however that i prepared the surfaces very very well)
        That valve lapping and valve seals transformed the bike.

        Anyway when i get another bike reliable (within a month) i will start a project on this 550 to
        tear down and powder coat frame etc.

        Still need a standard seat for it ?
        UKJULES
        ---------------------------------
        Owner of following bikes:
        1980 Suzuki GS550ET
        1977 Yamaha RD 250D
        1982 Kawasaki GPZ 750 R1
        1980 Suzuki GSX 250E

        Comment


          Question:
          Thinking ahead - where can I get pistons and rings ? cheaply in the uk ?
          I am thinking only if I have got a cylinder that has been rebored ! I have standard pistons in.
          I am enquiring - but it might be oversize 0.5 or 1.0 ? (I think the pistons are coming with it so ill know anyway)
          Just want to be ready for the worst case scenario, I am sure it has not been rebored.[/QUOTE]

          IMD pistons have been selling rings complete set (four Pistons) £99-99 on eBay (standard fit only) they have been in business 25 years
          i have just got a set they seem good quality Suzuki Oem here in uk £52 per piston and Suzuki uk say there is only two sets in uk one in Europe and the fourth would have to be ordered fom Japan.
          The big guy up there rides a Suzuki (this I know)
          1981 gs850gx

          1999 RF900
          past bikes. RF900
          TL1000s
          Hayabusa
          gsx 750f x2
          197cc Francis Barnett
          various British nails

          Comment


            Goodness this thread has opened again -- reminds me of me sledgehammering ....... I must not go there.

            anyway ill let another answer on the pistons and rings as i dont know where to get them cheaply but
            seriously would like to know myself.
            UKJULES
            ---------------------------------
            Owner of following bikes:
            1980 Suzuki GS550ET
            1977 Yamaha RD 250D
            1982 Kawasaki GPZ 750 R1
            1980 Suzuki GSX 250E

            Comment


              I have a lot of 550 heads, pistons and cylinders.
              http://img.photobucket.com/albums/v5...tatesMap-1.jpg

              Life is too short to ride an L.

              Comment

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