5. FUEL SYSTEM AGILITY 50 Screws Screws AIR CUT-OFF VALVE DISASSEMBLY Remove the two screws attaching the throttle cable set plate and the set plate. Remove the two screws attaching the air cut-off valve. Remove the spring and vacuum diaphragm. Check the vacuum diaphragm for cracks or damage and check each passage for clogging. Throttle Cable Set Plate Air Cut-off Valve Cover ASSEMBLY Install the vacuum diaphragm onto the carburetor. Install the spring and air cut-off valve cover. Install the throttle cable set plate and tighten the two screws. · Be sure to set the vacuum diaphragm lip into the groove on the carburetor. · When installing the air cut-off valve cover, make sure that the vacuum Diaphragm Spring Cover O-ring diaphragm is properly installed. Screws VACUUM CHAMBER DISASSEMBLY Remove the two vacuum chamber cover screws and the cover. Vacuum Chamber Cover Spring Vacuum Diaphragm/Piston Spring Remove the spring and vacuum diaphragm/ piston. 5-6