DISASSEMBLY

Place carburetor on a holding fixture to prevent damage to the throttle body.

AIR HORN REMOVAL

• Remove choke vacuum break diaphragm hose.
• Remove vacuum break diaphragm assembly from air horn by removing two attaching screws. These screws have a tapered head and do not use lockwashers. Remove diaphragm plunger stem from diaphragm to choke lever link.

CAUTION: Screw that retains vacuum break lever to choke shaft is installed with thread torque retaining compount. It is not necessary to remove this screw and lever unless choke shaft replacement is required

• Remove fast idle cam attaching screw; then remove fast idle cam
• Remove choke rod from choke coil lever on end of choke shaft
• Remove electric thermostatic coil assembly from choke housing by removing (3) screws and retainers
• Choke coil housing need not be removed from float bowl unless replacement is necessary. To remove choke housing, remove three attaching screws from float bowl. Two screws have lockwashers and the one facing the choke housing has a tapered head for locating choke housing.
• Remove four remaining air horn to bowl attaching screws and lockwashers (three long and one short screw)
• Reove air horn by lifting and twisting back toward choke housing so that the choke coil lever link will disengage from the choke coil lever at the choke housing, invert and place on clean bench.

AIR HORN DISASSEMBLY

• If required, the choke valve and choke shaft can be removed from air horn by removing the screw that retains the vacuum break lever to the choke shaft. Care should be exercised when removing this screw because it is retained in place by thread torque retaining compount. Remove the two attaching screws from the choke valve, then, remove the choke valve and choke shaft from air horn.