WD Battery Question

So my dad and I recently inherited a couple tractors and one is a WD. We were working on it a little bit tonight and we are getting to the point that we are getting ready to try and turn it over. It is a 12v system and we had a spare 8v battery laying around in the garage. Can this be used or do we need to bite the bullet and go buy a 12v battery? I think I know the answer already but just thought I would throw it out there to you guys.

Thanks
 
The battery would not last very long since it would be getting 14 volts in which will fry an 8 volt battery in short order. So yes you need a 12 volt battery
 


Another question. The ignition switch seems to be jammed and you cannot turn the key. Will it still fire if the key is off? I'm not sure if it is stuck in the on or off position but wasn't sure if it affected whether it will fire or not
 
How did you determine that it was converted from 6 to 12 volts? Does it have an alternator? Regarding the key switch, it is normally in a vertical position when it is off.IIRC there is one screw to remove to slide the cover off, so you could access the wiring inside the cover. You could remove the wires from the stuck switch.
 
It was my great uncles and he passed about a year and a half ago and his daughter and her husband had no use for it and wanted to keep it in the family. Her husband told me that it had been converted to 12v and yes it does have an alternator on it. The key right now is in the vertical position and will not turn. Sounds like I may need a new switch as well...
 
As for the key switch. Unhook
the wire coming into the coil and
run a hot wire from the battery.
That way you know it will get
fire.
 
If the switch will not turn then you need a new switch but you can run a hot wire from the nonground side of the battery to the ignition side of the coil to see if it will fire up
 

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