"Brand New" JD 790 needs a little help

   / "Brand New" JD 790 needs a little help #11  
I had a similar situation and changed the oil using John Deere "break-in " oil. It's in gallon containers. Just ask for it.

I have a 790 and have some thoughts. I suspect the fuel is good enough for now. Look in with a flashlight to see if green with algae. If it looks OK, I would wonder if the fuel system may have lost it's "prime" or has air in the system and needs to be bled.
Thiipossiblity would seem higher on the list than some of the things mentioned so far. It's worth a thought.
It's easy to do but harder to explain. Find an owner's manual for the tractor and follow the instructions.
I've seen tractors sit for far longer in bad climates and eventually start right up and get back to the task at hand. After you get it fully warmed up and used for a couple of hours I woudl change every fluid I could find. Don't forget the anti-freeze.
 

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