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  1. #1
    New Member
    Join Date
    Mar 2006
    Posts
    22
    Location
    Kenwood California
    Tractor
    Kubota L2550GST

    Default Kubota won't start

    Yesterday my L2550 wouldn't start. The battery was way past warranty and corroded around the posts so I replaced it. You guessed it, it still won't start. Here is what it does: Turning the key to the first position lights all the idiot lights but when you turn to start they go out. There is no sound, no click, nothing. When the key is returned to the off position there is a loud 5 sec buzz. If you immediately turn the key back on the lights do not come on and then there is no buzz when you return the key to the off position. If you wait half an hour or so then you get the lights, no light, then buzz as before. I'm thinking relay, but I know there are several. Or perhaps a bad starter motor. Any ideas? Your help is greatly appreciated. I'm looking at a grape harvest soon and need this tractor.

    IanM

  2. #2
    Veteran Member
    Join Date
    Aug 2005
    Posts
    1,020
    Location
    Guernsey Co. Ohio
    Tractor
    Ford 3000

    Default Re: Kubota won't start

    I suspect you'll find it's something minor. Are you certain your connection to the battery is good? That sure sounds like the symptoms of a loose connection.

  3. #3
    Super Member ronjhall's Avatar
    Join Date
    Apr 2000
    Posts
    7,440
    Location
    SE Michigan, TX when its cold in MI.
    Tractor
    Kubota 2910 HST

    Default Re: Kubota won't start

    Did you get the same polarity battery. Some batteries look the same but have positive and negative post reversed.
    Sounds like a bad connection though.


  4. #4
    New Member
    Join Date
    Mar 2006
    Posts
    22
    Location
    Kenwood California
    Tractor
    Kubota L2550GST

    Default Re: Kubota won't start

    Thanks for the help. The polarity is right and the connections look good, but I'll give them a good cleaning in the morning.

    IanM

  5. #5
    Elite Member czechsonofagun's Avatar
    Join Date
    Jun 2006
    Posts
    3,240
    Location
    Old Dominion
    Tractor
    Kubota B1750

    Default Re: Kubota won't start

    I would agree with Ron. Battery can have good enough connection for the lights, but not for the starter to turn over.
    Regards,

    Prokop


    I was put on Earth to accomplish a certain number of things. Now I'm so far behind, I'll never die!

  6. #6
    Super Member
    Join Date
    Sep 2000
    Posts
    6,553

    Default Re: Kubota won't start

    I've had similar symptoms. The cables had corroded inside the insulation and had to be replaced. Ever since, I am suspicious of any cable that has be corroded at all.

  7. #7
    Silver Member
    Join Date
    Feb 2006
    Posts
    206
    Location
    Missouri
    Tractor
    Mahindra 6000

    Default Re: Kubota won't start

    Also check the connection where the ground cable from the battery connects to the frame of the tractor. Take it loose, clean off all paint, rust, other corrosion/debris, apply a thin layer of grease, and reconnect. These ground connections are notorious.

  8. #8
    Veteran Member jimmysisson's Avatar
    Join Date
    Jul 2005
    Posts
    1,648
    Location
    W.Mass
    Tractor
    1993 NH 2120 (the best), 1974 MF 135 (sold, but solid), 1947 Farmall A (bought, sold, bought back, sold again), 1956 MH50 lbt (sold, in 1980, darn it)

    Default Re: Kubota won't start

    Probably you've tried jumper cables direct to a good ground and to the starter itself, to rule out cable problems. Sure sounds like you're not getting juice to the starter, just a little to the lights and relays. Try bypassing the solenoid also, to see if it's just that. A 12v test light on the big starter terminal should light in start position.
    Jim
    "Anything worth doing is worth doing slowly" Mae West

  9. #9
    New Member
    Join Date
    Mar 2006
    Posts
    22
    Location
    Kenwood California
    Tractor
    Kubota L2550GST

    Default Re: Kubota won't start

    I've thoroughly cleaned battery/ground conections and the starter connections and still no luck. When I attach a 12v test light to the big starter terminal it lights with the key in the off position and in the first position but then goes out when the key is moved to the start position. Jumper cable from positive battery to starter does nothing. I've tried jumper cable from neg battery to ground but get the same results. Not sure how to test the solenoid. Any other ideas would be greatly appreciated.

    IanM

  10. #10
    Elite Member dfkrug's Avatar
    Join Date
    Feb 2004
    Posts
    4,662
    Location
    NorCal
    Tractor
    05 Kioti CK30HST w/ Prairie Dog backhoe

    Default Re: Kubota won't start

    I had several L2550s, the easiest to start tractor I have ever owned
    or driven. The starter switches go bad eventually, due to their
    inability to keep water and dirt out. The easiest test is to take a
    short jumper wire and short the positive battery terminal on the
    starter motor to the start terminal a couple of inches away. If you
    get nothing, the #1 cuplrit is a bad ground strap from battery to
    engine block, in my experience.

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