2004 660 flooding

[bigherm660]

took my 2004  raptor 660 to sand mtn for first time and day 1 -3 it didnt run very well but did run figured it was jetting issues day 3 it quit runing. it would start but act like it was always flooded and die  if i turned the fuel off it would run the same as days prier until it either ran out of gas or i would turn the fuel on and it would flood again i dont know what the original owner put in it for jets(or if he did) but it has a k&n air filter no lid and full alba exhaust those are the only mods any help would be appriciated