Need Help 2013 RZR Running Lean

I recently rebuilt my rzr. All stock no big bore kit etc. When you put it in gear it sputters a little and then clears out. While it sits and idles its like it starving for fuel. You can spray starting fluid in the snorkel and it clears right up and runs great. I’ve had people tell me I have a air leak somewhere and tell me to buy a programmer. Looking to see if anybody has had this issue. RZR is a 2013 with 2,000 miles only had to rebuild the motor. Any help is appreciated.

Need Help 2013 RZR Running Lean

I recently rebuilt my rzr. All stock no big bore kit etc. When you put it in gear it sputters a little and then clears out. While it sits and idles its like it starving for fuel. You can spray starting fluid in the snorkel and it clears right up and runs great. I’ve had people tell me I have a air leak somewhere and tell me to buy a programmer. Looking to see if anybody has had this issue. RZR is a 2013 with 2,000 miles only had to rebuild the motor. Any help is appreciated.