2009 Rancher depression plz help

I have a 2009 Honda Rancher 420 Fm 4x4. Long story short I took it to the shop to have the case replaced and the shop doing it f**ked me over for 7 months and skipped town on me, plus everyone else he was doing business with. Leaveing me with a half done job and my top end M.I.A. So i purchase a new 1, printed the manual, and went to work. Everything back in place and the engine just turns over but doesn't start. I have went with a new ignition coil, battery(M.I.A TOO), spark plug(replaced 3x), & fuel injector. I still get the same results just turns but won't start. But when i spray gas into the carb and put the air filter back on it start and runs. But when i hit the gas it starts to die. I'm leaning towards the fuel pump but I hear the fuel pump coming on. I'm beginning to give up because of the loot I'm losing. If anyone has any info that could help me I would be unbelievably grateful. Please