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Old 03-22-2012, 09:31 PM   #1
Anthony
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Default John Deere mechanics, riding mower won't turn over

95 John Deere 325
Getting frustrated

Battery is at 12.6

Key on, lights work, warning lights come on, won't crank, if I turn the key a lot, 15x ish.... I'll get a click, but that's it.
Checked and cleaned connections to batt, ohm'ed them .4
Thought it was bad starter, jumped it while on motor, nothing. Pulled starter thinking it was bad..... Jumped it on the bench and the solenoid clicks and the starter motor spins. Put back in, same thing.
Tried jumping the seat switch out, nothing.

So I checked voltage from key to solenoid, 2.9v????
So I can see the solenoid not popping, but no starter motor too?

Key switch? Stater?
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Old 03-22-2012, 09:43 PM   #2
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Default Re: John Deere mechanics, riding mower won't turn over

check all the interlocks, seat, pto, shifter
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Old 03-22-2012, 09:46 PM   #3
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Default Re: John Deere mechanics, riding mower won't turn over

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Originally Posted by Anthony View Post
95 John Deere 325
Getting frustrated

Battery is at 12.6

Key on, lights work, warning lights come on, won't crank, if I turn the key a lot, 15x ish.... I'll get a click, but that's it.
Checked and cleaned connections to batt, ohm'ed them .4
Thought it was bad starter, jumped it while on motor, nothing. Pulled starter thinking it was bad..... Jumped it on the bench and the solenoid clicks and the starter motor spins. Put back in, same thing.
Tried jumping the seat switch out, nothing.

So I checked voltage from key to solenoid, 2.9v????
So I can see the solenoid not popping, but no starter motor too?

Key switch? Stater?
Solenoid failure on those is common. My 1996 STX38 has the solenoid replaced three times. Just because it clicks does mean it is getting a good contact. You can use some jumper wires to by pass the key switch. Then try using a bump start button on the solenoid.

Also your power cables could be corroded and causing voltage lose. Last year I put all new power wires on my STX. Made a big difference on how fast it cranked.
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This is why you should only build generic junk for the masses because really thats all they can handle! The moment they feel insecure straight to the key board they go! Being creative and trying to push stuff is only worth doing for yourself.
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Old 03-22-2012, 09:47 PM   #4
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Default Re: John Deere mechanics, riding mower won't turn over

2.9v to the solenoid sounds like keyswitch. Uncommon for them to go bad though. You jumped the starter straight from the battery? Can you turn the motor over by hand (assuming you can get to the spinning top vent shield)???
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Old 03-22-2012, 09:48 PM   #5
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Default Re: John Deere mechanics, riding mower won't turn over

No shifter.
Seat works. But I'm triple checking stuff and bypassed it too.

I flipped the pto switch back and forth, it's not sticking, is there something else I should do to check it?

What's a interlock?

Hahaha

It's my first riding mower
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Old 03-22-2012, 09:49 PM   #6
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Default Re: John Deere mechanics, riding mower won't turn over

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Solenoid failure on those is common. My 1996 STX38 has the solenoid replaced three times. Just because it clicks does mean it is getting a good contact. You can use some jumper wires to by pass the key switch. Then try using a bump start button on the solenoid.

Also your power cables could be corroded and causing voltage lose. Last year I put all new power wires on my STX. Made a big difference on how fast it cranked.
Good call on the battery cables. 2.9v to the solenoid has me wondering...you might have it right.

Dump a can of coke on the terminals...
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Old 03-22-2012, 09:50 PM   #7
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Default Re: John Deere mechanics, riding mower won't turn over

Interlock is slang for any safety switch. Blade, seat, clutch pedal etc...
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Old 03-22-2012, 09:51 PM   #8
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Default Re: John Deere mechanics, riding mower won't turn over

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Originally Posted by JOHNBOY66 View Post
Solenoid failure on those is common. My 1996 STX38 has the solenoid replaced three times. Just because it clicks does mean it is getting a good contact. You can use some jumper wires to by pass the key switch. Then try using a bump start button on the solenoid.

Also your power cables could be corroded and causing voltage lose. Last year I put all new power wires on my STX. Made a big difference on how fast it cranked.
I used a jumper I made up for lashing valves on my car on it, still nothing, but if I use a separate battery to jump it, it works.

I cleaned the batt cables and re-stripped the ends to be sure.
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Old 03-22-2012, 09:52 PM   #9
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Default Re: John Deere mechanics, riding mower won't turn over

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Originally Posted by bg71361 View Post
check all the interlocks, seat, pto, shifter
Good tip there! Check the deck clutch PTO. Makes sure it is not in the on position! My uncle had me come over because his rider would not start last year. He put a new battery in it still no luck. When got there I noticed the Deck was engaged. Push the the PTO to off cranked right up. He must have shut it off with the deck running.
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Quote:
Originally Posted by unlimited View Post
This is why you should only build generic junk for the masses because really thats all they can handle! The moment they feel insecure straight to the key board they go! Being creative and trying to push stuff is only worth doing for yourself.
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Old 03-22-2012, 09:55 PM   #10
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Default Re: John Deere mechanics, riding mower won't turn over

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I used a jumper I made up for lashing valves on my car on it, still nothing, but if I use a separate battery to jump it, it works.

I cleaned the batt cables and re-stripped the ends to be sure.
What do you mean it works with a diff battery? It turns over at regular speed? (the motor, not the starter)
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Old 03-22-2012, 09:55 PM   #11
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Default Re: John Deere mechanics, riding mower won't turn over

Make sure you can turn the motor over by hand. I had a lawn tractor do this and the motor had got flooded with fuel when an electric shutoff valve from the fuel tank stuck open and flooded fuel through the carb and hydro locked the motor.
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Old 03-22-2012, 09:56 PM   #12
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Default Re: John Deere mechanics, riding mower won't turn over

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Originally Posted by ScottNadeau View Post
2.9v to the solenoid sounds like keyswitch. Uncommon for them to go bad though. You jumped the starter straight from the battery? Can you turn the motor over by hand (assuming you can get to the spinning top vent shield)???
It's 2.9v on the terminal on the board that's on the back of the key switch too

I have not tried to spin by hand.

It started when I put it on trailer, drove 45min home and now this shit
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Old 03-22-2012, 09:58 PM   #13
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Default Re: John Deere mechanics, riding mower won't turn over

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Originally Posted by ScottNadeau View Post
What do you mean it works with a diff battery? It turns over at regular speed? (the motor, not the starter)
With the starter on a bench, I hooked it up to a 12v battery. Solenoid and starter motor work..... On the bench
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Old 03-22-2012, 09:58 PM   #14
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Default Re: John Deere mechanics, riding mower won't turn over

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I used a jumper I made up for lashing valves on my car on it, still nothing, but if I use a separate battery to jump it, it works.

I cleaned the batt cables and re-stripped the ends to be sure.
When you used a separate battery how did you connect it? Have you tried using jumper cables to connect the battery to the block? Stripping the ends does not help if the wires are corroded inside.
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Quote:
Originally Posted by unlimited View Post
This is why you should only build generic junk for the masses because really thats all they can handle! The moment they feel insecure straight to the key board they go! Being creative and trying to push stuff is only worth doing for yourself.
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Old 03-22-2012, 10:00 PM   #15
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Default Re: John Deere mechanics, riding mower won't turn over

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Originally Posted by JOHNBOY66 View Post
Good tip there! Check the deck clutch PTO. Makes sure it is not in the on position! My uncle had me come over because his rider would not start last year. He put a new battery in it still no luck. When got there I noticed the Deck was engaged. Push the the PTO to off cranked right up. He must have shut it off with the deck running.


It's got a big switch on the dash. It's in the off position. When I flip it, I can hear something click. I believe that's all there is to get the blades to spin
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