Electric Assist Choke: Operation

The choke thermostatic coil spring reacts to engine temperature; however, an electric heating element (located next to a bimetal spring inside the choke well) will assist engine heat during both summer and winter operations to shorten choke on time.

This single-stage electric assist choke is designed to give a more rapid choke opening at temperatures above about 60°F, and slower choke opening below this temperature.

A wire from the choke heater is connected to an electrical control switch. Above 60°F, the control switch will energize the choke heater.

Since the heater control switch is mounted to the engine, some cold weather operation may energize the choke heater. This could occur after the choke has opened without benefit of electric heat. No adverse reaction will occur.