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  1. #11
    Platinum Member
    Join Date
    Jan 2012
    Posts
    528
    Tractor
    YM2000

    Default Re: Yanmar 1700 starts then blows black smoke and stops

    How about "Try Both" Hey now that sound really good.

  2. #12
    New Member
    Join Date
    Jun 2013
    Posts
    4
    Location
    hodges sc
    Tractor
    yanmar 1700

    Default Re: Yanmar 1700 starts then blows black smoke and stops

    Thanks for all the replys i will try some of these ideas this weekend ,i found out my son said it did this last year at his house while bushhogging and he said he kept fooling with it, in wide open throttle position and it quit, and started running fine ???? sounds like something may have stuck up,Does anyone know what regulates pressure in the pump?I'm thinking something maybe Stuck? It could be the rack but can the rack in this pump go past full fuel position?If i find out anything more i will post ,thanks

  3. #13
    Elite Member
    Join Date
    Dec 2009
    Posts
    2,765
    Location
    gilmer tx
    Tractor
    yanmar 2002d

    Default Re: Yanmar 1700 starts then blows black smoke and stops

    The length of the stroke of the plungers is what is regulated by the postition of the rack. Therefore the volume of fuel. The injectors are what regulates the pressure They are set to open at a designed pressure. I know the 220/226 injectors are to open at 2275psi but do not know what the 1700 injectors are to open at.
    Last edited by winston1; 06-11-2013 at 08:34 PM.

  4. #14
    New Member
    Join Date
    Jun 2013
    Posts
    4
    Location
    hodges sc
    Tractor
    yanmar 1700

    Default Re: Yanmar 1700 starts then blows black smoke and stops

    winston1 I'm not sure how the governor works on this engine ,but when i put a heavy load on it when i was plowing is it possible the governor opened the rack up all the way ,full fuel position and got stuck there ? If so this may be whats going on. Do you know how the linkage is connected between the fuel rack and the governor? Thanks again

  5. #15
    Elite Member
    Join Date
    Dec 2009
    Posts
    2,765
    Location
    gilmer tx
    Tractor
    yanmar 2002d

    Default Re: Yanmar 1700 starts then blows black smoke and stops

    Remember, I am not saying this is your problem. Anyway, notice references 31,32 and 33 in this drawing. That is the arm and related fasteners that attach it to the rack on your pump. Yanmar Tractor Parts: GOVERNOR

    To access this you will have to remove the inspection cover directly above the pump.

    Take a good look at this thread. The 1500 is very similiar to yours. http://www.tractorbynet.com/forums/y...runs-full.html

  6. #16
    New Member
    Join Date
    Jul 2013
    Posts
    1
    Location
    haddock, Ga
    Tractor
    Yanmar 1700

    Default Re: Yanmar 1700 starts then blows black smoke and stops

    Just started having same trouble, ran fine for a little while. But I did put fuel in it before I started mowing. Plan is to drain, refill and bleed system. I hope this works.

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