fuel mileage

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  • mason79
    XS-XJ Guru
    • Mar 2006
    • 1351
    • los angeles, ca

    #16
    I found my formual for best fuel economy is high ambient temp (85deg. F) and speed under 65mph.
    so you say hot/ lean is more economical, but how duzit run?
    "a good man knows his limitations" dirty harry
    History
    85 Yamaha FJ 1100
    79 yamaha xs1100f
    03 honda cbr 600 f4
    91 yamaha fzr 600
    84 yamaha fj 1100
    82 yamaha seca 750
    87 yamaha fazer
    86 yamaha maxim x
    82 yamaha vision
    78 yamaha rd 400

    Comment

    • Dennyz
      XS-XJ Guru
      • Jul 2002
      • 1151
      • Olympia, Washington

      #17
      Naturally it runs better on rich/cool air. Speed and economy have always been at opposite ends of the spectrum. Particularly with an air cooled engine.


      so you say hot/ lean is more economical, but how duzit run?
      DZ
      Vyger, 'F'
      "The Special", 'SF'
      '08 FJR1300

      Comment

      • GNEPIG
        XS-XJ Guru
        • Apr 2005
        • 1647
        • fl

        #18
        .. i got super gas milage when i had the R1 can on my special also
        4:1 Jardine, R1 Can (muffler

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        • thetank2006
          XSive
          • May 2006
          • 12
          • Southwest Iowa

          #19
          i finally got better mileage. i took it out on the road today, rode 30 miles and stopped to fill before i headed home. about 28 mpg, that is running at 60-65mph into a 30-40mph headwind. i think the motor turned about 4000 rpm the whole way up. still is better than 15mpg which is what my pickup gets!!!
          1981 XS 1100 Special

          Jared "The Tank" Hansen

          Comment

          • mason79
            XS-XJ Guru
            • Mar 2006
            • 1351
            • los angeles, ca

            #20
            30-40mph headwind
            when i rode today, i felt the wind i didn't kow if it was because i was doing 90 or if it was a head wind, how does one know when there is a head wind, i feel side winds...
            "a good man knows his limitations" dirty harry
            History
            85 Yamaha FJ 1100
            79 yamaha xs1100f
            03 honda cbr 600 f4
            91 yamaha fzr 600
            84 yamaha fj 1100
            82 yamaha seca 750
            87 yamaha fazer
            86 yamaha maxim x
            82 yamaha vision
            78 yamaha rd 400

            Comment

            • oldbiker648
              Truly XSive
              • Jul 2003
              • 182
              • Richmond, VA

              #21
              When you feel like you are doing 90MPH as far as wind resistance goes, and your speedo only says 70MPH, you are riding into a 20MPH headwind. A headwind is a wind blowing directly into your face and will kill gas mileage and make riding much more difficult at speeds of 60 or above, particularly if it's blowing at 30MPH or more. Look at flags, smoke or trees to see which way the wind is blowing, or when you slow down or stop for a light it will be evident. Headwind=bad Tailwind=good
              _________________
              John
              78E
              79 SF (2)
              80 G "The Beast"
              81 H "The Dresser"
              79 XS650 II
              82 650 Maxim
              70 DT-1 Enduro
              66 Honda CL-77 Scrambler
              96 H-D Road King

              "The road to hell is paved with good intentions."

              Comment

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