What type of gas do i put in my 2004 yamaha raptor 50 ATV?

do i premix it or? what types of liquids do i need to keep it is good running order?|||Here's a 7 year old on his http://www.youtube.com/watch?v=ISQ9yd0sd鈥?/a>


It's a 4 stroke not a 2 stroke.


Oil mix is 2 stroke.


Learn what the difference is.