HITACHI 4-Barrel: Description

Carburetor is of 4-barrel, 2-stage design. Primary stage includes idle system, slow speed circuit, accelerator pump system and main metering system. In addition, Federal models are equipped with a sub-zero starting device which admits fluid into the primary stage.

Secondary stage contains secondary vacuum diaphragm operating system, stepping circuit and main metering system. Choking is accomplished through a semi-automatic choke. Other features include a deceleration control system, automatic choke return, hot start assist, idle compensation and dashpot (manual transmission).