Carburetor - AISAN 2-Bbl: Description

Carburetor is a 2-barrel, downdraft type with vacuum-operated choke breaker to improve cold engine operation. A secondary slow port helps fuel mixing at start of secondary valve opening. Improvement of operation is noticed during low speed load. A piston-type accelerator pump is incorporated into the primary barrel.

Other equipment includes a diaphragm to open secondary valve at high speed and full throttle operation. A throttle stop solenoid is also used to prevent dieseling during engine shutdown.