Gas mileage wows!!

Discussion in 'Motorized Bicycle General Discussion' started by Veronica007, Oct 10, 2012.

  1. Veronica007

    Veronica007 New Member

    Joined:
    Oct 10, 2012
    Messages:
    17
    Likes Received:
    0
    Hi!! Guys!! My name is veronica!! I am new here, I have a 49cc motor that is4 months old with a boost bottle kit on it. I am only getting 40 miles per tank full!! Why??!! Help!!:-||
     
  2. MotorBicycleRacing

    MotorBicycleRacing Well-Known Member

    Joined:
    Jul 28, 2010
    Messages:
    5,738
    Likes Received:
    40
    Hey veronica
    Depending on what size tank you have that is about right.

    The smaller 2 liter tank is about 1/2 gallon so that would be
    80 mpg
    The bigger tank is 2.5 liters which 0.66 gallons.

    Boost bottles do nothing for performance or gas mileage and
    are a gimmick.
     
  3. Veronica007

    Veronica007 New Member

    Joined:
    Oct 10, 2012
    Messages:
    17
    Likes Received:
    0
    Should I take the boost bottle off? Could it be causing my problem? By the way,i have the half gallon tank.
     
  4. MotorBicycleRacing

    MotorBicycleRacing Well-Known Member

    Joined:
    Jul 28, 2010
    Messages:
    5,738
    Likes Received:
    40
    What size rear sprocket are you running and how fast are you
    cruising around?

    Do you have a lot of hills around you or a heavy hand on the gas? :D

    The sellers claims of 150 mpg is on the optimistic side.
    They say "up to" 150 mpg.

    80 mpg is on the low side......80 to 120 mpg is more realistic.
     
  5. Veronica007

    Veronica007 New Member

    Joined:
    Oct 10, 2012
    Messages:
    17
    Likes Received:
    0
    I have the sprocket that lets me go over 30 miles per hour,i only ride her at 20 or 22 miles per hour. Is it safe for her motor to go faster than that to?
     
  6. Desert Rat

    Desert Rat New Member

    Joined:
    Jul 30, 2012
    Messages:
    565
    Likes Received:
    3
    Can you take a picture of the bike so we know more about
    the kind of engine you have 2 stroke 4 stroke? that does seem to be on the low side, sounds like a 44 tooth sprocket
     
  7. Veronica007

    Veronica007 New Member

    Joined:
    Oct 10, 2012
    Messages:
    17
    Likes Received:
    0
    I have a two stroke aluminum beach cruiser with 26 inch tires.
     
  8. Desert Rat

    Desert Rat New Member

    Joined:
    Jul 30, 2012
    Messages:
    565
    Likes Received:
    3
    What gas oil mix you using 25 to 1, 50 to 1?
    Used or new? you build it or a dealer? how many cc 49 or 66/80?
    we need more info to help :)
    your right MBR I missed the 49cc comment, sorry
    I'm wondering if it could be the oil gas ratio, any thoughts?
    and yes let's see a pic to few are the women riders I've met
     
    #8 Desert Rat, Oct 10, 2012
    Last edited: Oct 10, 2012
  9. Greg58

    Greg58 Well-Known Member

    Joined:
    May 1, 2011
    Messages:
    2,937
    Likes Received:
    90
    Veronica, welcome to the forum. I have two bikes with 48cc engines that get 60 miles to a tank full, and I weigh 210. My son inlaw his brother and I all get about the same mileage. We ride in the Newnan and Senoia area so the altitude and Terrain are close to what it is in Columbus.
     
  10. Veronica007

    Veronica007 New Member

    Joined:
    Oct 10, 2012
    Messages:
    17
    Likes Received:
    0
    My motor is 49cc and I aint sure what mixture I am running,i use one bottle of lucas 2 cycle synthetic per half a gallon. I will be sure to post some pictures of me riding as soon as I get my brother to take some pictures of me riding!! I live in columbus georgia also,and I am the only female rider here I think! Also should I remove the boost bottle to see if that would help?
     
  11. Veronica007

    Veronica007 New Member

    Joined:
    Oct 10, 2012
    Messages:
    17
    Likes Received:
    0
    I also live in columbus georgia,i will post some pictures of me riding her as soon as my brother takes some!! I use 1 bottle of Lucas synthetic two stroke oil per half a gallon of gas. Should I also take my boost bottle off to see if that helps?
     
  12. VIKTR

    VIKTR New Member

    Joined:
    Jan 10, 2012
    Messages:
    193
    Likes Received:
    0
    How many oz of oil per half gallon?
     
  13. Veronica007

    Veronica007 New Member

    Joined:
    Oct 10, 2012
    Messages:
    17
    Likes Received:
    0
    2.6ounces per half a gallon of gas.
     
  14. Desert Rat

    Desert Rat New Member

    Joined:
    Jul 30, 2012
    Messages:
    565
    Likes Received:
    3
    I know the bottle you are talking about and it's good for one gallon=2 tanks
    if you have a stock 2.5 liter tank, although it will still run I think your running to much
    oil in gas, generally I hear them recommend 30 to 1, I run 3.5 oz per tank=1/2 gallon
    how about the rest of you?
     
  15. VIKTR

    VIKTR New Member

    Joined:
    Jan 10, 2012
    Messages:
    193
    Likes Received:
    0
    Then you would be running at 24-25:1

    I think your figures about right

    I figure I see similar mileage, but I ride full throttle with hills
     
  16. bigbutterbean

    bigbutterbean New Member

    Joined:
    Jan 31, 2011
    Messages:
    2,417
    Likes Received:
    0
    I run 32:1 on a 66cc ht, I weigh 280, run WOT most of the time and get about 100mpg.
     
  17. Veronica007

    Veronica007 New Member

    Joined:
    Oct 10, 2012
    Messages:
    17
    Likes Received:
    0
    What does WOT mean?
     
  18. Greg58

    Greg58 Well-Known Member

    Joined:
    May 1, 2011
    Messages:
    2,937
    Likes Received:
    90
    After about 250 miles most run at 32/1 or so. I run the Lucas semi synthetic in my bikes at 40/1. Not recommending just saying what works for me. The black bike has about 1100 miles on it.
     
  19. PAracer

    PAracer New Member

    Joined:
    Sep 14, 2012
    Messages:
    284
    Likes Received:
    0
    The boost bottle isn't hurting or helping you. I would leave it there.

    I'm going to say that your mileage is fine. 40 in a tank is okay. The best mileage is cruising rather slow on flat land with a light bike and a jockey for a rider. Once you start playing with the throttle, going up hills, or adding accessories to your bike, your mileage will suffer. Also, these engines often run rich. All that extra fuel being burned is wasted. Getting the carb tuned could net you a few more miles and a bit more power.
     
  20. PAracer

    PAracer New Member

    Joined:
    Sep 14, 2012
    Messages:
    284
    Likes Received:
    0
    Wide open throttle. pedal to the metal!
     

Share This Page