If/when looking for parts, keep in mind that Owatonna was likely building these for Deere. I had a gas Owatonna Mustang, and it had some very similar parts (but think mine was an older model with two control levers and not the single joy stick).
update. i have it turning over good now (new starter and battery) but it will not start.
i pulled the fuel filter and poured half of the fuel into a soda bottle and it was orange? nothing separated
i filled up the rest of the filter with diesel 911 and purged the system. i put air to the tank and fuel was spewing out of the bleeder but didnt look orange but hard to see.
i even loosened each line to the injectors and they are all getting fuel when i turn it over.
put the test light on each glow plug they are all getting power when i turn the key back.
so i guess it may be the fuel. any advice or anything else i should try?
I would drain the tank and fuel lines and start with fresh fuel. Have a couple of extra fuel filters on hand too. Purge as much of the crap out of the fuel system as you can. Make sure the return lines are cleaned and cleared too.
I pulled all the lines today and blew them all out with air
i ran the line to a fuel jug with fresh diesel
the only thing i didnt do was get a fuel filter and pull the injectors
i tried starting it some but i think i mainly need a filter.
when i was turning it over i noticed smoke coming from the block relief valve
and hardly any coming from the muffler. I pulled the muffler and a lot more came out of the exhaust and didnt notice any from the valve.
i guess the rings could be shot from sitting so long