When Setting An Automatic Choke the vehicle must be cold (hasn’t run for 4-5 hours): Remove the air cleaner assembly and depress the throttle twice. The first throttle press is to set the choke plate, and the second is to give the motor a shot of fuel. The choke blade should be completely closed at this point.Aug 21, 2017
If you have a multimeter you can test the power supply by disconnecting the automatic choke and touching the meter leads onto the wires which the choke was connected to whilst running the engine at a fast tickover – (make sure not to touch them together!) The wires should give you a reading of 12-14volts AC.
Treat your electric choke like a manual choke. Push gas all the way to floor and release. Engine should start right up. Don’t pump it.
Most new cars are fitted with an automatic choke rather than a manual one. The choke automatically opens and closes the choke butterfly (or valve ) in the carburettor depending on the temperature of the engine .
At 5°-10°C (41°-50°F), the choke plate should be fully open in about ten minutes. Check for bent choke linkage and a defective thermostat cap. And ensure the fast idle cam (screw) is properly set.
The choke is a plate in the carburetor that opens and closes to allow more or less air into the engine. … When doing a cold start, the choke should be closed to limit the amount of air going in. This increases the amount of fuel in the cylinder and helps to keep the engine running, while it is trying to warm up.
Leaving the choke on while operating will result in excessive fuel consumption, irregular engine power performance and eventually may even damage the engine. … Some engines utilize a manual fuel primer bulb to enrich the ratio of fuel in the fuel air mixture for initial engine starting.
Factory chokes were connected to the stator terminal of the alternator. That connection provides around 7 volts. Aftermarket chokes need a full 12 volts.
You should check the carburetor choke when the engine is cold. Lift the hood and remove the air cleaner to observe the choke. Have a friend sit in the car and tap the gas pedal lightly, just once. With this you should see the choke plate fully close.
When the choke butterfly is allowing the most air flow, without restriction, it is open. Like a door. Open lets things through. when the choke is restricting the flow of air, it is closed.
Leaving the choke on for too long will cause unnecessary engine wear and waste fuel. … The engine needs its fuel to be vaporised in order to burn it. This is done by the carburettor where the fuel is mixed with clean air coming from the air filter, and sent into the pistons to be ignited.
The “choke” is off when the choke lever is down or when the choke lever is facing you if your choke is a handle bar mount. Choke off means that the choke plate is not covering the carb throat.
3 Answers. It will not damage the engine at all. All that will happen is that it will run richer, thus using more fuel. If you did it for thousands of miles you’d probably end up with more deposits in the engine/exhaust, but even that is easy to sort.
If your lawn mower only runs with the choke on, check the carburetor. … The carburetor brings air and fuel together and mixes them in the perfect ratio for combustion before they enter the engine. There are several passages in the carburetor that allow fuel to enter the air stream depending how the throttle is set.
If its stuck open the car will run rich once warm, throttle response will be poor & it will probably stall eventually at idle. A sticking choke, automatic or otherwise will result in excessive fuel use, engine racing, driving like a pig.
The conventional remedy for a flooded carbureted engine is to steadily hold the throttle full open (full power position) while continuing to crank the engine. This permits the maximum flow of air through the engine, flushing the overly rich fuel mixture out of the exhaust.
Check from red plug to ground to be sure you have power first. Your photo shows the choke in it’s cold or closed position. When you work the throttle the fast idle cam (other side of the carb) should rotate into the fast idle position. Turn the ignition on and wait a minute…..now work the throttle again.
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