Re: FA-50 Vacuum lines

Bob Diehl /
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The long line from inside the metal gas tank area may be your battery vent tube and doesn't plug into anything. The fuel petcock has a vacuum line that plugs into the intake manifold (motor side of carb) to provide vacuum for the fuel pump inside the petcock assembly. The other line is the fuel line that goes to the fuel inlet on the rear (air inlet) side of the carb.

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