Vacuum Break

Fig. 9 Vacuum break adjustment:

1. With fast idle screw on fast idle cam high step, seat diaphragm using an outside vacuum source. Cover purge hole with a piece of tape, if equipped.
2. Close choke valve to compress plunger bucking spring and seat plunger stem.
3. Place specified size gauge between lower edge of choke valve and air horn wall. Bend link to adjust, Fig. 9.