Re: 1968 Evinrude Fastwin 6 Gallon Tank Issue

[David Stanton]

The early single line tanks in the late 1950s/early 1960s had a 2-way vent on that little pin the gas line connector pushes and these did let out gas when the level in the tank was high or when it sloshes around a lot in waves. Maybe your tank is an older one like that. I’m not sure just what year these were changed to a one-way valve, (someone here should know) but I know 1969 was one way because I had one. Dad bought a new 40 Johnson in 1960 and this was a problem from day one due to the design.
Dave