Pomp System Check

Pour 1/2" of gasoline into carburetor bowl, install pump inlet check ball and seat and pump discharge check ball in body and install pump plunger in cylinder. Fill pump cylinder with gasoline by raising plunger, press lightly on shaft to expel air from passages, then hold discharge ball down on seat by pressing firmly on ball with small brass rod. Press plunger downward-No fuel should be emitted from either intake or discharge passages. If discharge noted, clean passages thoroughly, and install new check balls if necessary.