Carburetor - NIKKI 4-Bbl: Overhaul: Disassembly

Remove vacuum sensing tubes for altitude compensator valve and choke delay valve. Remove choke heater lead, choke diaphragm No. 2 vacuum sensing tube and altitude compensator valve.
Remove throttle opener and bracket assembly, No. 1 choke diaphragm vacuum sensing tube, dashpot diaphragm and bracket assembly (Man. Trans. only) and throttle return spring.
Remove sub-return spring, return spring bracket, bi-metal spring housing and bracket assembly. Remove split pin and fast idle rod, hot start assist lever spring and bracket assembly and choke lever.
Remove the choke return diaphragm and bracket, No. 2 choke diaphragm and air horn assembly from main body. Disconnect float pin and remove float, needle valve, spring, valve stem and retainer.
From main body, remove accelerator pump rod, secondary throttle valve rod, throttle sensor and main body attaching bolts. Remove main body from throttle body.

Fig 1: Removing Jets and Air Bleeds
Remove secondary throttle attaching screws, cover, return spring, pin and clip, diaphragm, housing and gasket. Remove "E" clip, washer and shaft, accelerator pump lever, attaching screws, cover, diaphragm and return spring.
From main body, remove accelerator pump injection screw, nozzle, gasket, weight, outlet check valve, check valve seat, weight and inlet check valve. Remove retainer, blind plug and washer, primary main jet and secondary main jet.
Remove air bleeds and jets. See Fig 1 . Using a hacksaw, remove idle limiter cap by cutting through limiter cap, 0.4" (10 mm) from cap end. Remove and discard mixture adjusting screw and spring.