compression and altitude

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  • grifff
    Truly XSive
    • Jul 2004
    • 117
    • Cedar City, Ut.

    #1

    compression and altitude

    I'm at 5900 feet elevation. I have heard that the compression would be lower at these altitudes. My compression is testing 120psi on all 4. Is there a formula for elevation in testing compression?
  • skids
    XS-XJ Super Guru
    • Jul 2002
    • 5048
    • Florissant, CO, USA

    #2
    That compression is good. Don't worry about it.
    Skids (Sid Hansen)

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

    Comment

    • grifff
      Truly XSive
      • Jul 2004
      • 117
      • Cedar City, Ut.

      #3
      skids

      Looks like your from colorado. Do you get these same kinda compression readings?

      Comment

      • Shuriken
        XS-XJ Guru
        • Jul 2002
        • 1093
        • Southwest USA

        #4
        Read this.
        1985 Yamaha VMX12n "Max X" - Stock
        1982 Honda XL500r "Big Red" - Stump Puller. Unknown mileage.
        1974-78 Honda XL350 hybrid - The thumper that revs. Unknown miles.
        1974 Suzuki TC/TS125 hybrid. Trials with trail gear. Invaluable. Unknown miles.
        1971 Honda CL350. For Dad. Newtronic Electronic Ign. Reliable. Unknown miles.

        Formerly:
        1982 XS650
        1980 XS1100g
        1979 XS1100sf
        1978 XS1100e donor

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