Thermostatic Air Cleaner: Description

All carbureted models are equipped with an Automatic Temperature Control (ATC) air cleaner assembly. This device maintains the temperature of the air entering the carburetor within a constant range, thereby providing a leaner air/fuel mixture to reduce harmful exhaust emissions. In addition, the ATC air cleaner improves engine warm-up characteristics and helps prevent carburetor icing. The ATC air cleaner assembly consists of an air cleaner housing, vacuum motor, temperature sensor, blow-by gas filter, idle compensator, hot air duct, fresh air duct and various connecting hoses.