I am a newbie at trying to get my 1957 Johnson Sea Horse out on this water this summer and I am not exactly sure on what type of fuel to use. I had read one posting that a 24:1 mixture should be used but I just wanted to verify it so that I am not using a mixture that is for another type of motor. The motor I had read this mixture for was for a 1961 motor, so I just wanted to get the correct mixture for my motor.