New Gator owner and need some help

Just bought a 6x4 gator and need some help. I cant find the year on it or what engine on it. Bought it from a woman whos husband passed away and she didnt know much about it. serial # w006x4x037484. It seems to run fine but it wont idle every time ok most times it wont but if I stay on the gas it runs fine. I want to get it running and all fixed up so I can make my life easier on the farm but just need a little help to start. I would rather not got to the local dealership because they are way over priced for everything they sell.
Thanks for any help anybody can offer