Tractor Repair: kubota wont start, kubota b7100, injector lines

Question
I have a Kubota B7100 that hasen't run for 3 yrs. but    
ran fine when it was parked. I put a fresh battery
in it but i may have made a mistake by not putting in fresh fuel. It turns over fine and chuffs out a little black smoke but doesn't want to start. Where would you suggest that i start?
Thanks in advance,
Zero

Answer
Zero drain the fuel and refill with fresh fuel change the filter and then bleed the system as would normaly do after running out of fuel then open all the injector lines
Crank the engine over till fuel comes out the injector lines then close them up and crank over till it starts if it still won't start give it a "SMALL SNIFF" of starting fluid eg aero start or the other brand which is called start ya bastard.
Sorry for the bad languige but not sure of the brand name Zero the starting fluid is not liked by my self because if you use to much it will destroy the engine.
SO PLEASE ONLY USE A SMALL AMOUNT OF IT AS IT IS LIKE DRUGS AND PEOPLE THE ENGINE WILL RELY ON IT OK.
Hope this all helps drop me a line and tell me how you go with it.



   Kind regards Danny Last