Throttle Body
Invert carburetor and remove fast idle cam and choke rod, idle mixture screws and springs, idle air by-pass screw and spring, and vacuum hose fitting. Remove throttle body-to-main body attaching screws (one large screw and lockwasher located in counterbore in center of throttle body - see Fig 1); lift throttle body off. Remove secondary auxiliary throttle valve assembly from lower side of main body
CAUTION:
(Do not attempt to disassembly auxiliary throttle valves; valve spring tension is calibrated and setting will be lost if assembly disturbed).
This completes throttle body disassembly. Do not disassemble throttle levers or remove throttle valves (throttle body is serviced as an assembly with throttle valves, levers, and linkage).