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Choke Switch & Full Choke Switch

  1. Warm engine to normal operating temperature. Disconnect water temperature switch. Disconnect carburetor choke heater lead at connector and connect voltmeter to choke heater lead (from control unit).
  2. Connect tachometer to engine. On California vehicles, current should flow to choke heater lead, when engine is started with choke knob out. Knob should return after 20-60 seconds from engine starting time.
  3. Connect jumper wire to both terminals of disconnected carburetor choke heater lead (from control unit). Set engine speed at 2000 RPM with choke knob. Current should flow to choke heater lead. Current should stop flowing when choke knob is completely pushed in.
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