I have a new to me yz426f and I am doing my 1st oil change on it. I drained the oil from both the frame and motor. Idk how much came out. I was told by the people at ride now all my bike takes is 1qt so I bought 2qts. I have both of them in and it still does not even show on the dipstick. How much do I need? And is it bad to mix oils. One qt it Honda 10-40 and the other is some thumper something 10-40?