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mileage

Discussion in 'XJ Technical Chat' started by oak450, Dec 21, 2008.

  1. oak450

    oak450 Member

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    Location:
    The foothills of Oregon
    What sort of mileage do you folks get? My xj650 has been holding steady at 40mpg for a few thousand miles. Seems a little low.
     
  2. HalfCentury

    HalfCentury Member

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    Location:
    Virginia Beach, VA
    Depends on how much you "get on it" and what speeds you spend most of your time. Lots of hard acceleration will eat fuel compared to going easy on the throttle.

    Wind drag goes with the square of velocity. If you double your speed, the wind drag is 4X.

    45-55 MPH is 5th gear should give you optimal MPGs.

    A 10% increase in speed increases wind resistance 21%

    Around town riding yields 40-45 mpg for me. I have not had a chance to go for an entire tank at highway speeds yet.
     
  3. brtsvg

    brtsvg Member

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    Location:
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    My 82 XJ650 has been averaging around 40 mpg around town with the 10% ethanol fuel we have here in MN.
     
  4. flash1259

    flash1259 Member

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    W.R. Wisconsin
    mine varies between 45 and 50 mpg this has been determined from 2000 miles of riding this past year. I kept the rpms steady at speed limits and avoiding trafffic in town by taking back roads. also using 93octane or midgrade gas because the bike i have recommends using 91octane. low grade around here is 87 octane.
     
  5. rpgoerlich

    rpgoerlich Member

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    I was getting a constant 45mpg @ 75mph+ on the 80 XJ650 before I sold it.
     
  6. sushi_biker

    sushi_biker Member

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    I've run through my first tank in the past 2 days and I got around 37 MPG. I admittedly got into it pretty hard the whole time with aggressive acceleration and high cruising speeds. My speedo cable snapped (again) so I don't know how fast I was going but my cruising RPM's were 6k -7k the whole time.

    Based on how I was riding, is this reasonable? I made 130 miles on 3.5 gallons.
     
  7. FastMaxim82

    FastMaxim82 Member

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    Location:
    Tarentum, north of pittsburgh, pa
    my 550 gets about 55 or so. All my back roads to work are perfect for light quick accelleration and using all 6 gears.
     
  8. bill

    bill Active Member

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    Varies greatly on how you ride and how light you are - how much you carry etc.

    Mine gets 35+-
     
  9. sushi_biker

    sushi_biker Member

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    At 214 lbs (butt nekkid), I'm a big guy. That might be part of it. I'll have to try riding nicely for a tank and see how far I get.
     
  10. alkasmeltzer

    alkasmeltzer Member

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    I don't know about that, sushi. I go 260#'s and my little 550 Maxim gets me around 45-50mpg around town. I do take it fairly easy on it though. Rarely does it see over 6K. But someitmes, I just gotta, you know!!
     
  11. TheHound

    TheHound Active Member

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    As Bill said it varies greatly, there are several threads on this.
    To me it seems that the YICS motors get far greater gas milage then the none YICS motors.
    The 550 guys alway piss me off with there 50mpg. :wink:
    but there have been many a 650 and 750 owner claiming 40-50mpg too.
    I get around 35mpg, I look to fill up about 150 miles so as not to hit resesrve.
     
  12. switch263

    switch263 Member

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    I was averaging 40+ on my 81 750 YICS motor. And I ride like I stole it.

    Haven't burnt a whole tank at highway speeds, but the highway miles I've put on seemed to be >45 mpg.

    Taking a trip to PA in july for bike fest, I'll get to find out about highway mileage!
     
  13. pvtschultz

    pvtschultz Member

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    I got an average of 41.6 MPG last year with my 650. That was mostly in-town riding to and from work. On the more open road, I have gotten a lot closer to 50 MPG.
     
  14. TwistedEvo8

    TwistedEvo8 New Member

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    I get about -20 mpg... every time i put gas in it I end up draining the gas because the fuel tank is so full of crap or it sits and gets old haha :) Ugh i want to fix it and ride
     

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