Carburetor - Carter-Weber Single Bbl: Description

TYF carburetor is a single barrel downdraft type, consisting of 5 systems which enable it to provide correct fuel/air ratio under various operating conditions and loads. The 5 systems are:

• Float Circuit System
• Low-Speed System
• High-Speed System
• Accelerating Pump System
• Choke System

TYF also incorporates a pulsing air control solenoid, providing electronic feedback fuel control. This provides a narrower air/fuel ratio band, permitting maximum efficiency from the catalytic converter.

The TYF also utilizes an idle control solenoid, which prevents engine "dieseling". When ignition is turned off, solenoid de-energizes, retracts and closes the throttle valve.

The TYF's idle control solenoid (Solvac) is a 2-stage solenoid used on A/C-equipped models. Electrical stage is an idle solenoid to prevent engine "dieseling". Vacuum stage is a diaphragm, activated by vacuum from solenoid that is energized when A/C clutch is engaged. It increases idle speed to compensate for added engine load.