Traditional Farmer has mentioned twice that the Lombardini 2 cyl used in the AC 920 and the Simplicity 7790 (model I am working on) are noted hard starters. That jives with other Google results I have found.
The comment about possibly not having enough fuel for starting may have some beaing. The owners manual and experience from others shows that the fuel control must be wide open while starting.
I have not tried any starting aids. I'm not a fan of ether, but might try some of the other suggestions.
I know I need to get a compression test. Despite it not having many hours on the meter, the history is unknown and it is very possible that the cylinders and rings are worn. I'll have to look at what it will take. The engine is air cooled so there is a really long reach through the head to get to where a tester would have to seal against.
All the adjusting screws on the injector pump still have wire and lead seal crimps on them. Leads me to think that nobody has messed with those. Not to say that it might not need adjusting, but that's above my pay grade.
Again, thanks to all for the advice. It is helpful to get different minds with different experiences passing out things to consider.
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Today's Featured Article - Third Brush Generators - by Chris Pratt. While I love straightening sheet metal, cleaning, and painting old tractors, I use every excuse to avoid working on the on the electrics. I find the whole process sheer mystery. I have picked up and attempted to read every auto and farm electrics book with no improvement in the situation. They all seem to start with a chapter entitled "Theory of Electricity". After a few paragraphs I usually close the book and go back to banging out dents. A good friend and I were recently discussing our tractor electrical systems when he stated "I figure it all comes back to applying Ohms Law". At this point
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