Assembly
Fig. 2 Jet & air bleed identification:
Fig. 3 Throttle return spring installation:
1. Install mixture adjusting screw, turning screw in until lightly seated, then backing screw out number of turns recorded during disassembly. Do not install new pin sealing mixture screw until mixture adjustment has been checked.
2. Position new throttle plate gasket on body, hook throttle valve side of return spring as shown in Fig. 3, then install throttle plate and torque retaining screws to 3 - 5 ft. lbs.
3. Install primary and secondary main jets, float bowl drain plugs and retainer, then bend over tabs on retainer to secure plugs.
4. Install float bowl sight glass seal, sight glass and retainer, ensuring that index mark on glass is toward float bowl.
5. Install fuel cut solenoid, secondary throttle actuator and idle-up compensator.
6. Install micro switch and bracket assembly, then connect linkage springs to bracket. After assembling carburetor, check adjustment of micro switches as outlined in ``Computer Controlled Emission Control System'' section. Wide open throttle switch is adjusted prior to carburetor installation, while the idle switch is adjusted after carburetor is installed.
7. Install metering tubes, jets and air bleed orifices, Fig. 2.
8. Install injector weight and spring, accelerator pump check balls and pump spring, positioning U-shaped bend of spring downward.
9. Install accelerator pump piston and MC solenoid in air horn.
10. Install filter, needle and seat, and the float, then adjust float level as outlined under ``Carburetor Adjustments.''
11. Install primary and secondary slow air bleed orifices in air horn.
12. Position new air horn gasket on float bowl, coat MC solenoid seal with silicone grease, then install air horn.
13. Install choke thermostat and housing assembly, and the bowl vent solenoid.
14. Install accelerator pump link lever and retaining bolt, then connect vacuum and fuel hoses.
15. Check choke, accelerator pump and secondary throttle adjustments and correct as needed.