hi guys, new to the boating world so bear with me, I just purchased a 90 cajun bass boat from a friend, and ive been on the boat several times in the years and its just awesome. i head that the oil tanks that feed the motor have issues and people reccomend unhooking the tank, and just adding 2 stoke oil to the gas tank between fill-up. i would like to know what the ratio is and if someone could send me a link to where and the proper way to disable the tank that would be great. my model number for the outboard is E150STLESB. thanks!!