carb top screw size

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  • skids
    XS-XJ Super Guru
    • Jul 2002
    • 5046
    • Florissant, CO, USA

    #16
    It is easy to over-torque the allen-head screws. You don't want to strip out the holes - don't ask how I know!
    Skids (Sid Hansen)

    Down to one 1978 E. Stock air box with K&N filter, 81H pipes and carbs, 8500 feet elevation.

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    • oldyam80sg
      XS-XJ Guru
      • Apr 2007
      • 2041
      • Hackettstown , New Jersey

      #17
      The button head Allen screws -either the part where you insert the Allen key is a sloppy fit or the Allen key is worn. I got tired of trying to remove a brand new Allen head button screw as the heads stripped. I bought JIS screws on McMaster -Carr and am replacing all the top carb screws.
      1980 XS1100 SG
      Inline fuel filters
      New wires in old coils-outer spark plugs
      160 mph speedometer mod
      Kerker Exhaust
      xschop K & N air filter setup
      Dynojet Recalibration kit
      1999 Kawasaki ZRX1100
      1997 Jeep Cherokee 4.5"lift installed

      Comment

      • DEEBS11
        XS-XJ Guru
        • Feb 2023
        • 1376
        • Connecticut

        #18
        To answer the original question: M5 X 0.8 thread. 8mm length. Also shown is a typical Helicoil tool for repairing damaged threads.

        DEEBS

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        • oldyam80sg
          XS-XJ Guru
          • Apr 2007
          • 2041
          • Hackettstown , New Jersey

          #19
          I have the heli-coil tool. Worked for 25 years as a maintenance mechanic doing repairs all the time.
          1980 XS1100 SG
          Inline fuel filters
          New wires in old coils-outer spark plugs
          160 mph speedometer mod
          Kerker Exhaust
          xschop K & N air filter setup
          Dynojet Recalibration kit
          1999 Kawasaki ZRX1100
          1997 Jeep Cherokee 4.5"lift installed

          Comment

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