motor sputters

[Brademay]

05 450r. When u gas on it and let off and get right back on it,it sputters and kind of dies out and then picks up again.changed spark plug, checked valves, changed out gas,cleaned carb air filter clean. it just happened all of the sudden. ran fine one day and the next it started this. anyone had this trouble?

[Bwild]

Could maybe be tps sensor or accellerater pump, Can you try a diffrent carb?

[Brademay]

i don';t have another carb, is there a way to check those?