2012 Arctic Cat 425 EFI 4x4 won't start
 

Hello, new to the forum, need some tech help! I have a 2012 Arctic Cat 425 EFI 4x4 that I am having issues with. For about 6 months it would start and run fine but would not idle over about 5 seconds before it would die. Now it will not start unless I spray it with starting fluid, but still will not idle very long. Here's what I have done so far: Replaced spark plug, Cleaned air filter, Pulled fuel pump assembly and checked filter in gas tank, (is there another fuel filter besides in the tank?). This ATV is garage kept, never been in deep water or deep mud. Thanks!

UPDATE - I cleaned out the gas tank and added fresh gas this morning. Still have to spray with starting fluid if engine is cold. Once it is started and warmed up it will start without starting fluid. Ran it pretty hard for about 20 minutes, still will not idle.