Normally a twenty to one ratio will work just add 6 ounces of two cycle oil to a gallon of gas shake well and add to your bike this mixture is a little rich but it works well on older bikes
How Do You Mix Petrol With Two Stroke Oil For A Mini Quad Bike Engine?
You need to find out what ratio of gas and oil your min quad requires. If you can't then just make up one that's on the rich side. Then just ass the two together and shake...pretty easy.