my suzuki runs fine when the motor is cold but when it gets hot it spits and sputters loses power and dies.?

[Melissa Brown]

when my fourwheeler gets hot it spits and sputters like it flooding out,then it will die and want start back until i let it cool down. I've changed spark plug,cleaned carburater ,and air filter. Could it be that im using casteral oil 10w-30 and not fourwheeler oil?