Service Repair Manual

GENERAL (FBC)
GENERAL INFORMATION (FBC SYSTEM)
The Feedback Carburetor (FBC) system provides a positive
air-fuel ratio control for maximum reduction of emissions. The
Electric Control Unit (ECU) receives signals from various sensors
and then modulates two solenoid valves (FBSV, SCSV) installed
on the carburetor to control the air-fuel ratio.
The ECU also controls the ignition timing, electric choke, throttle
opener by switching on-off the solenoid valves.
FBSV : Feedback Solenoid Valve
SCSV : Slowcut Solenoid Valve
ECU : Electric Control Unit
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