John Deere 500 C TLB with 4270D engine will not start !!! HelpPPP !!!!

Hello all,new to the forum, glad I found it.
Have a JD 500C TLB that is my buddies that i'm using to put a couple grinder pumps in, then i'm going to clean and fix it up and sell it for him.
I was running it the other day and she was running fine, just driving it across the yard and all of a sudden it shut right down, the throttle was open,
tried starting,she would kick with a shot of either but thats it. I took the fuel lift pump off, it was gummed up bad so i bought a new one, and put...

John Deere 500 C TLB with 4270D engine will not start !!! HelpPPP !!!!

John Deere 500 C TLB with 4270D engine will not start !!! HelpPPP !!!!