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  1. #1

    Default BX 25 fuel guage not working

    My BX 25 fuel guage is not registering correctly, the needle on the guage shows full all the time when the tank is half full. any ideas

  2. #2
    Gold Member
    Join Date
    Apr 2011
    Posts
    314
    Tractor
    Kubota BX2660

    Default Re: BX 25 fuel guage not working

    When you start the tractor, turn the switch to "ON", but don't crank the engine. Let the electrical system self check, and wait until the hour-meter display in the tachometer window. Then crank the engine.

    This procedure works on my BX2660.

  3. #3
    Super Member JOHNTHOMAS's Avatar
    Join Date
    Apr 2008
    Posts
    5,734
    Location
    Somerset, Ky
    Tractor
    currently own F3080 F2680 B2620 FEL/BH RTV1140

    Default Re: BX 25 fuel guage not working

    I had a BX2660 that had a fuel guage that was never right. Just traded it for a BX25 which solved the problem.
    2012 B2620 FEL BH, 2008 F2680 2WD 72" side Discharge Deck, 2012 F3080 4WD 72" rear discharge deck, 2010/2009 RTV1140CPX , RatchetRake, Forks, ...DEARBORN 2 BOTTOM PLOW 12" ?? FOR SALE $425).... Drawbar and Horse Drawn disk 13 Toyota Tacoma Double Cab, 13 Ford Flex. 2009 Subaru Impreza Sport

  4. #4
    Veteran Member
    Join Date
    Oct 2011
    Posts
    1,885
    Location
    Monrovia, California
    Tractor
    Kubota BX25

    Default Re: BX 25 fuel guage not working

    Here is a pic of the fuel sender. One wire and a ground wire.
    Check to be sure you have a good connections perhaps.

    3Ω resistence when full
    110ΩOhms resistence when empty

    (Not that I am any good w/ electrical, citing the WSM is all)

    Let us know what you find.
    Regards,

    Artisan

    Kubota 2012 BX25 (23H.P. / 17.7pto)
    14' Dump / Carson 12K Tow Trailer w/ movable Winch,
    Canopy, Tunes, Stabilizer Soft Pads, 10"-12"BH Buckets, FEL Grapple, Fasse Valved & Switched,
    Fire Extinguisher, ChainSaw Mount, Protective Surround / Enclosure in the works.

    Stayin' Alive (This click could save a life...)

  5. #5
    Silver Member
    Join Date
    Jun 2008
    Posts
    157
    Location
    SW Iowa
    Tractor
    BX24

    Default Re: BX 25 fuel guage not working

    What happens when you go below 1/2. The guage on my BX24 stays on full for a long time. Once it gets below half (?) it starts dropping. As easy as it is on diesel I just fill before I start on long projects and then don't worry too much about it.

    Take Care,
    Doug in SW IA

  6. #6

    Default Re: BX 25 fuel guage not working

    In order to get to the top of the fuel tank, what do you have to remove to expose it, right now it is under the fender assembly

  7. #7
    Bronze Member
    Join Date
    Jul 2011
    Posts
    94
    Location
    Northwestern Vermont
    Tractor
    Kubota BX22

    Default Re: BX 25 fuel guage not working

    Sounds like you float maybe stuck. Do you have any bumps ya can drive over to see if it giggle loose or the gauge moves at all??

    BX22
    Fel, BH, MMM, Plow/dozer blade with quick hitch. 4ft Box Blade, 3pt boom arm, 3pt 51" Meteor Snowblower!

  8. #8
    Platinum Member srs's Avatar
    Join Date
    Feb 2004
    Posts
    990
    Location
    Jarrettsville Maryland
    Tractor
    Kubota B3030 HSDC

    Default Re: BX 25 fuel guage not working

    Quote Originally Posted by Bruce Macdonald View Post
    My BX 25 fuel guage is not registering correctly, the needle on the guage shows full all the time when the tank is half full. any ideas
    What timing Bruce! After 4 years of ownership and 270 hrs the fuel gauge on my B3030 is now stuck on full. I removed the dash to check for tightness of all wires, everything appears fine. I removed the sending unit and tested it in a bucket of diesel fuel and it moves freely up and down. The weird part is when I removed the sending unit from the fuel tank and connected the two wires to it, one a ground and the other power it worked fine. Move the float up gauge goes to full, lower it and I can watch the gauge drop. Lower the float all the way the gauge goes to empty. I then reinstalled the sending unit in the fuel tank connecting the same wires in the same order but when I turn the key to on it goes right to full. Turn the key off it goes to empty. Any suggestions? FYI I have approximately 1/2 tank or less of fuel. I thank you in advance. Stanley
    Stanley----Kubota B3030 HSDC

  9. #9
    Platinum Member
    Join Date
    Apr 2007
    Posts
    575
    Location
    Northern Lower Michigan
    Tractor
    Kubota B3030HSDC

    Default Re: BX 25 fuel guage not working

    Stanley,a broken or bad connection of the power wire to the sending unit will give a full scale reading.Perhaps something changes when the sender is installed vs the out of tank situation-stress on the harness,etc.Good Luck!

  10. #10
    New Member DiggerDog's Avatar
    Join Date
    Oct 2012
    Posts
    15
    Location
    Fredericton, NB
    Tractor
    Kubota BX25

    Default Re: BX 25 fuel guage not working

    Quote Originally Posted by dougtrr2 View Post
    What happens when you go below 1/2. The guage on my BX24 stays on full for a long time. Once it gets below half (?) it starts dropping. As easy as it is on diesel I just fill before I start on long projects and then don't worry too much about it.

    Take Care,
    Doug in SW IA
    Mine does exactly the same thing, and has since it was new. I have only put five tanks of gas through it.

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