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  1. #1
    New Member
    Join Date
    Sep 2012
    Posts
    1
    Location
    Jacksonville, TX
    Tractor
    M6800

    Default Kubota starts fine, sputters, dies, then sits awhile, starts and works fine.

    My kubota M6800 starts right up, sounding great, then sputters (at which time accelerator will not change the idle at all) and dies. If it sits awhile after that, then it will usually crank up and run just fine. Anybody got an idea what the problem might be? Jill in Jacksonville, Texas

  2. #2
    Veteran Member
    Join Date
    Dec 2008
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    1,370
    Location
    Up-State New York
    Tractor
    Grand L 3540 HST-3, R4's

    Default Re: Kubota starts fine, sputters, dies, then sits awhile, starts and works fine.

    First item I would check is the fuel filter or filters, when is the last time they were changed? It seems to be a fuel issue so start with filters and fresh fuel.
    DevilDog
    He is your Friend, Your Partner, Your Defender, Your Dog. You Are His Life, His Love, His Leader. He Will Be Yours, Faithful And True, To The Last Beat Of His Heart. ...Unknown

  3. #3
    Veteran Member Bigfoot62's Avatar
    Join Date
    Aug 2008
    Posts
    1,967
    Location
    W. Central Louisiana
    Tractor
    JD 5085M; NH TN70A; Ford 2600

    Default Re: Kubota starts fine, sputters, dies, then sits awhile, starts and works fine.

    I agree with dd1, fuel filters first.
    If there is any water in the old filters, then drain the tank and fill with fresh fuel.

    BTW, to TBN.
    '10 JD 5085M Cab MFWD FEL
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    My other tractor is a '95 Kenworth.

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  4. #4
    Silver Member
    Join Date
    Sep 2011
    Posts
    106
    Location
    North Carolina
    Tractor
    Kubota B7800

    Default Re: Kubota starts fine, sputters, dies, then sits awhile, starts and works fine.

    If fuel filter is not the issue , check the fuel tank for trash , when it dies, check fuel lines for a flat hose . This is a sign of bad hose or trash in tank starving tractor of fuel . Good luck.

  5. #5
    Platinum Member
    Join Date
    Jul 2003
    Posts
    596
    Location
    under the elephant\'s tail [ ontario can.]
    Tractor
    john deere 3130, universal

    Default Re: Kubota starts fine, sputters, dies, then sits awhile, starts and works fine.

    I once had that problem and it turned out that some crap had accumulated in one of the banjo shaped fittings with the bolt going through it that was part of the fuel line.

  6. #6
    Elite Member dex3361's Avatar
    Join Date
    Aug 2008
    Posts
    3,569
    Location
    N. of Charleston WV
    Tractor
    Kubota L4400-1 HST,FEL, 3x3 remotes, TNT. BX1500 54 mmm

    Default Re: Kubota starts fine, sputters, dies, then sits awhile, starts and works fine.

    Sounds like it may be getting air into the fuel system and is forcing it out on the first round of running. I would check for a small fuel leak on the supply side either before or after fuel filter.
    Randall



    1Timothy Chapter 2:
    3 For this is good and acceptable in the sight of God our Saviour;
    4 Who will have all men to be saved, and to come unto the knowledge of the truth.
    5 For there is one God, and one mediator between God and men, the man Christ Jesus.
    From: The HOLY BIBLE

  7. #7
    Bronze Member
    Join Date
    Nov 2011
    Posts
    59
    Location
    Northern Pa
    Tractor
    farmall m, Allis Chalmers WD x2, Husky 390XP, Husky 455 Rancher

    Default Re: Kubota starts fine, sputters, dies, then sits awhile, starts and works fine.

    next time before starting try to prime the fuel system with the hand primer, is starts and runs fine you either have air in fuel or possible check valve leaking back

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