Coasting Valve

This valve adds additional fuel to the lean air fuel mixture caused by deceleration. This additional fuel insures more complete combustion and reduces exhaust emissions.

This valve is controlled by two switches; the speedometer switch and accelerator switch. Both of these switches must be closed in order for the coasting richer valve to function. The accelerator switch closed the coasting richer circuit whenever the accelerator pedal is in the released position. Depressing the accelerator pedal opens the circuit. The speedometer switch completes the circuit at speeds above 17 to 23 mph.