What is the fuel ratio of a suzuki dt 150 engine?

My DT150 has an automatic oiler on it. When ideling the service manual say it mixes at about a 100:1 ratio and at wide open throttle it is 50:1. I have read several things stating that if you do not use the automatic oiler you shoul mix you ratio at 50:1.thats 16 oz. oil to 6 gallons gas