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12 volt ssystem on John Deere 2 banger


 
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Ole Johnny
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PostPosted: Mon Oct 08, 2012 11:15 am    Post subject: 12 volt ssystem on John Deere 2 banger Reply to specific post Reply with quote

Do you replace the starter on an older John Deere 2 cylinder when you go to 12 volts from 6 volts??
 
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biggear
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PostPosted: Mon Oct 08, 2012 12:25 pm    Post subject: Re: 12 volt ssystem on John Deere 2 banger Reply to specific post Reply with quote

No run the 6 volt it will spin a lil faster but will last a long time...promise
 
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730d se
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PostPosted: Mon Oct 08, 2012 1:27 pm    Post subject: Re: 12 volt ssystem on John Deere 2 banger Reply to specific post Reply with quote

Unless you like replacing the bull nose on the starter and/or the ring gear, it is wise to have it rewound to 12 volts.
 
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Ole Johnny
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PostPosted: Mon Oct 08, 2012 2:27 pm    Post subject: Re: 12 volt ssystem on John Deere 2 banger Reply to specific post Reply with quote

What would cause these failures??
 
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BushogPapa
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PostPosted: Mon Oct 08, 2012 3:24 pm    Post subject: Re: 12 volt ssystem on John Deere 2 banger Reply to specific post Reply with quote


If you have a basically stock JD 6V 2-Cylinder..12V will spin it pretty fast...
You might tame it a little by using smaller Battery Cables, for more resistance, to get some voltage-Drop...
I never like to "Jump" my JD "B" with 12V..it spins it over mighty fast..

Ron..
 
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jd b puller
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PostPosted: Mon Oct 08, 2012 4:23 pm    Post subject: Re: 12 volt ssystem on John Deere 2 banger Reply to specific post Reply with quote

If you're replacing the bull nose on the starter you don't have it timed right. It's firing too soon before TDC and at the slower cranking speeds, it's building pressure and kicking back on you.

Pull the starter you have off, clean up the commutator, put new brushes in it and throw 12V at it.

Another thing you can do that will help is to hit the starter with the ignition off, once it's rolling, then hit the key,.
 


Last edited by jd b puller on Mon Oct 08, 2012 4:28 pm; edited 1 time in total
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Rusty wheel
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PostPosted: Mon Oct 08, 2012 4:39 pm    Post subject: Re: 12 volt ssystem on John Deere 2 banger Reply to specific post Reply with quote

Shouldn't hurt anything as long as you don't have to crank on it too long to get it started.
 
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Ole Johnny
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PostPosted: Mon Oct 08, 2012 6:25 pm    Post subject: Re: 12 volt ssystem on John Deere 2 banger Reply to specific post Reply with quote

Thats what I thought Ray,, Thanks for the info..
 
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Loosehandle
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PostPosted: Tue Oct 09, 2012 4:36 am    Post subject: Re: 12 volt ssystem on John Deere 2 banger Reply to specific post Reply with quote

If you need to crank it that fast there must be somthing else wrong.
 
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Ole Johnny
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PostPosted: Tue Oct 09, 2012 4:43 am    Post subject: Re: 12 volt ssystem on John Deere 2 banger Reply to specific post Reply with quote

It's a hand crank now and has too much compression for me to man handle like i did when it was 6 to 1 compressiion. Im changing it to electric start and was concerned about using a alternator and 12 volt battery on it but using the 6 volt starter still. I knowI could get a 6 volt starter but then I would have to have a 6 volt GENERATOR and I dont want that.
 
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48farmall
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PostPosted: Sat Oct 13, 2012 5:56 pm    Post subject: Re: 12 volt ssystem on John Deere 2 banger Reply to specific post Reply with quote

I"ve been running mine on 12V for a long time now. No problems. I"ve never had any problems using 12V on 6V starters on anything.
 
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