Weber 28/32 ADHA 2-Barrel: Description

Carburetor is a two stage, two barrel downdraft type unit. Primary stage is mechanically operated by accelerator linkage. Secondary stage is operated by mechanical linkage and a vacuum diaphragm. Primary stage includes idle and transition, main metering system and acceleration system. Secondary stage includes power enrichment, secondary main metering and transfer circuits. A single fuel bowl supplies fuel for both stages. A coolant heated choke bi-metal spring operates the choke plate through linkage and is completely automatic. An idle stop solenoid shuts off fuel supply when ignition switch is in "OFF" position.