Low gas mileage on FXD

Discussion in 'General Harley Davidson Topic' started by KPFLHRSI, Sep 23, 2008.

  1. KPFLHRSI

    KPFLHRSI Member

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    Hello Guys,

    My freind just bought a 02 FXD with the stage one installed, the bike has 7000 miles, and only gets 30MPG, my son has an 03 FXD with 10000 miles same mods and gets 45 MPG, my freind would like to know where to start looking for a solution to his extremely low gas mileage.

    Thanks, Kevin
     
  2. glider

    glider Veteran Member

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    He must have some sort of tuner or programming, possibly from a SERT that doesn't stay with the bike. That is usually the only thing that will knock MPG down.
     
  3. SledDog

    SledDog Senior Member Staff Member Moderator

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    Sounds like it could be a "right hand" problem...

    How you ride has a lot to do with your mileage.
     
  4. KPFLHRSI

    KPFLHRSI Member

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    Glider, sorry I forgot to mention that both bikes are carburated. I've ridden with both riders and my son is more heavy on the right hand.

    Kevin
     
  5. glider

    glider Veteran Member

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    OK then , jetting and jet kits will kill the MPG as well as how the carb is set up.
     
  6. TPFXD

    TPFXD Member

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    Hey KPFLHRSI,

    I just saw this thread started by you a while ago. I think i might be the one you were talkin about with the heavy right hand. And i have already told you, dad, i only had a heavy hand for the first couple of months after i got the bike because i liked hearing it. Since then my hand has gotten a lot lighter and my MPG went up close to 50. Haha

    Your son,
    Travis
     
  7. Joyflyin

    Joyflyin Experienced Member Staff Member Moderator

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    That's pretty funny....:D So Travis, now that you have 'calmed' down a bit, just curious, what's your gas mileage now??
     
  8. TPFXD

    TPFXD Member

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    Well I average about 50-51 Mpg now. My best tank was all highway and i got 54, and i am happy with those numbers... but every once and a while my hand still gets a litttle heavy, haha
     
  9. Joyflyin

    Joyflyin Experienced Member Staff Member Moderator

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    That's cool, I usually get 45-50, but my best was 57. I discovered that my bike is happiest on back roads about 50mph. My throttle impairment usually happens on the highway, I can't help it, it's the bike. :D
     
  10. NEWHD74FAN

    NEWHD74FAN Experienced Member Retired Moderators

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    Could be related to that fleeting "--runaway throttle some of the baggers are talking 'bout" Ya jus never know...:D