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HITACHI 4-Barrel: Overhaul: Reassembly

To assemble, reverse disassembly procedure. Discard all old gaskets, using new ones. Clean and inspect all parts. Prevent primary and secondary system parts from becoming mixed. When installing bi-metal spring housing, fit choke shaft lever to bi-metal spring by closing choke valve and pulling vacuum diaphragm shaft.

CARBURETOR ADJUSTMENT SPECIFICATIONS

Application Idle Speed (Engine RPM) Float Level Setting In. (mm) Float Drop Setting In. (mm) Choke Linkage (Off Car) In. (mm) Accelerator Cable Free Play Choke Valve Opening In. (mm)
Hot Fast
RX7 750 (1) .61-.65 (15.5-16.5) 1.8-2.2 (46-56) .22-.24 (5.5-6.2) .04-.12 (1-3) .03-.04 (0.8-1.0)
(1) Manufacturer does not supply fast idle speed. See CHOKE LINKAGE (FAST IDLE OPENING ANGLE) .