Go to the tuning tag and you can see what is needed to make your super 9 faster than a GY6 150cc.
Super 9 is a 2 stroke, you don't change the oil, it burns it off and you have to make sure you keep the
oil tank topped up. Under your seat you have 2 tanks one for oil and one for gas. You don't change the oil you just
top it up as it gets burned away.