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  1. #1
    New Member
    Join Date
    Aug 2005
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    8
    Location
    Felton, Delaware
    Tractor
    2005 ZD21

    Default ZD 21 wont start

    Hi i have a 2005 ZD 21 pro deck will not start just clicks, i have check all saftey switches all ohm out good, also replaced key switch, checked fuses ect. checked contintuity of black with white strip wire connected to starter and its good im wondering what you guys think? maybe the controll box ? also will start right up if you jump starter. Also cleaned ground and battery.

    Thanks in advance any help will be greatly appercated !

  2. #2
    Veteran Member
    Join Date
    Dec 2005
    Posts
    1,039
    Location
    Kentucky
    Tractor
    B2920

    Default Re: ZD 21 wont start

    Sounds like the solenoid might be bad since it will start if you jump the the starter, which is just bypassing the solenoid.

  3. #3
    Veteran Member
    Join Date
    Jan 2010
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    1,604
    Location
    Piedmont, NC
    Tractor
    Kubota L4610 & BX2230, Farmall Super M, Super A

    Default Re: ZD 21 wont start

    The battery may be about kaput and won't take a charge. If it's the original battery, it's now past due for a replacement. Has it been charged up lately? The fact the engine will start and run fine with a jump says it's probably not a mechanical or a switch/wiring problem.

  4. #4
    Silver Member
    Join Date
    Nov 2007
    Posts
    134
    Location
    PA
    Tractor
    Kubota L4740,B3030,ZD326,RTV 900,L4200

    Default Re: ZD 21 wont start

    Your missing something,my guess is a safety switch, from memory there are five, seat,PTO,Brake,left and right turn, there are two different color switchs, black and gray, and they are the weak link to the ZD21. If you jump the started by applying power to the small dia wire on the solenoid then that proves the solenoid is good,and also your battery. I have worked on ZD21 and those safety switchs were always the no start problem, testing them just doesn't prove anything,there are "Normaly Open and Closed", and everything works is a system. Best is to replace them, the ZD 21 has a very poor safety system.

  5. #5
    Elite Member dodge man's Avatar
    Join Date
    Oct 2008
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    3,635
    Location
    West central Illinois
    Tractor
    Kubota BX2350

    Default Re: ZD 21 wont start

    Seems obvious to me, like Grandad 44 said, its time for a battery. Most places like Autozone will load test it for you to make sure its bad.
    Dave,
    BX2350

  6. #6
    Silver Member
    Join Date
    Nov 2007
    Posts
    134
    Location
    PA
    Tractor
    Kubota L4740,B3030,ZD326,RTV 900,L4200

    Default Re: ZD 21 wont start

    Quote Originally Posted by wopicetti View Post
    also will start right up if you jump starter. Also cleaned ground and battery.

    Thanks in advance any help will be greatly appercated !
    It's not the battery if you "Jump the Starter" (removing small wire at solenoid and apply power to that terminal)an it started, that is a safety switch. If you had a shorted or bad battery you would have to start it using another battery or jump starting the battery.

  7. #7
    Elite Member dodge man's Avatar
    Join Date
    Oct 2008
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    3,635
    Location
    West central Illinois
    Tractor
    Kubota BX2350

    Default Re: ZD 21 wont start

    That brings up the question. Did he mean jump the starter? Meaning did he bypass everything and hook a hot wire up to the starter to make it turnover? Or did he mean jump start the tractor with jumper cables going to the battery?
    Dave,
    BX2350

  8. #8
    New Member
    Join Date
    Aug 2005
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    8
    Location
    Felton, Delaware
    Tractor
    2005 ZD21

    Default Re: ZD 21 wont start

    Battery is new and kept on tender and jump the starter. ( not with jumper cables ) i agree with kubota 2007 with the safety switches. Do you think the controller for the safety switches maybe bad? or just replace all switches first. Yes there is 5 of the dam things i am half tempted to jump all them out ? Thanks again for all the imput you guys, i appercate it!

  9. #9
    Elite Member dodge man's Avatar
    Join Date
    Oct 2008
    Posts
    3,635
    Location
    West central Illinois
    Tractor
    Kubota BX2350

    Default Re: ZD 21 wont start

    Ok, I get it now, your jumping right to the starter. I agree, its probably one of the saftey switches, you just have to figure out which one. It seems common the PTO one hangs up.
    Dave,
    BX2350

  10. #10
    Veteran Member
    Join Date
    Jan 2010
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    1,604
    Location
    Piedmont, NC
    Tractor
    Kubota L4610 & BX2230, Farmall Super M, Super A

    Default Re: ZD 21 wont start

    Yup. Sorry if I got everyone going in the wrong direction by misreading what wopicetti said.

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