The Best Way to Wire an Electric Choke

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Many older vehicles, and even some racing cars, use carburetor assemblies instead of fuel injection systems within the engine compartment. Carburetors require proper wiring configurations for a newer electric choke installation.

Function

  • An electric choke resides on top of a carburetor. The choke blocks the carburetor's air flow influx, creating pressure beneath the choke for pulling more fuel into the engine's combustion chamber system.

Features

  • An electric choke uses two polarized wires for connection to a power source. Connect the positive "+" wire to a 12-volt fused ignition power source. Attach the negative "-" wire to ground, or the vehicle's chassis. Do not connect the wires in a reverse manner, with positive attached to ground. A fire can result from improper connections.

Considerations

  • Do not use the ignition coil as the 12-volt power source. Use a voltmeter for probing possible power source candidates, such as a windshield wiper motor. Each vehicle can differ in their electrical configuration.

References

  • Photo Credit Jupiterimages/BananaStock/Getty Images
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