How Does Electric Choke Work On Weber Carb

Photo 2 though all choke systems work basically the same there will be design differences with each model.

How does electric choke work on weber carb.

The automatic choke is the main component that regulates the air fuel mixture while the engine is being cranked. When i first installed the edelbrock 1406 carb with electric choke i had problems with running way too rich not opening the secondaries and the choke staying on way too long. The choke is adjusted by loosening the three screws on its ring then rotating the choke clockwise for less choke and counter clockwise for more choke. As the engine warms up the automatic choke adjusts to the temperature change to regulate the fuel air mixture to the proper ratio.

If the choke stays on too long or does not come all the way off then turn the choke housing clockwise until the choke just begins to open and stop and tighten the screws. Over time the automatic choke can become out of adjustment and will. These used a 12 volt heating element much like a low powered toaster in place of hot air. This would not be enough voltage to properly operate your electric choke.

Additional weber carb notes. Watch the full video for more. When using any of the other american autowire wiring kits such as a classic update power plus highway or builder series you simply need to take any ignition fused 12 volt feed use about a 10 amp fused and connect it to your electric choke assembly. The fast idle speed screw is located behind the choke itself and can be adjusted to increase or decrease the fast idle rpm.

After i ran out of ideas and the installation manual wasn t much help i finally broke down and did the thing we all hate to do. If the choke does not close enough turn the choke housing counter clockwise until the choke is just closed. If not clean the carburetor and work the butterfly with your hand to loosen it up. With the engine cold loosen the screws in the cover.