While cranking it over, loosen each fuel tube individually till you get a good squirt of fuel with no air from each tube. A few more cranks with a very little ether should get you going. Make sure you are getting a good flow of fuel at each line.
I have a spare Kubota 15K V1902-BG1 generator in one of my bays. Missing a few parts such as water pump, radiator, alternator, and fuel pump. Well I put a fuel pump on it, had to use ether, and she started up (for just a few seconds) then shut down.
Very hard to start without ether. I pulled the head to take a peek. Before I get further, any suggestions? Since it did fire up, do you think it may be fuel starvation since it died? I loosened the injector tubes at the engine and fuel is definately making it there.