Yamaha Gas Golf Cart Missing and Backfiring

Beach Cart

New Member
I have a 1997 Yamaha gas golf cart with 4 stroke engine, and started every so often it will start missing and some times evan backfiring. Then it will clear up for a while even a day or 2 and then it will do it again. I've changed the fuel pump hoses, and cleaned the carburetor. Could it be water or something in the gas? I did put some dry gas in the tank has anyone had this problem? Please let me know its driving me nuts.