Jul 30, 2017 · The expression; "choke the engine " refers to placing the carburetor manual choke control into the engaged (starting) position. When an engine carburetor is "choked", the fuel to air mixture ratio becomes richer (more fuel & less air) than normal, for easier cold starting and to assist in getting the fuel flowing through the system. To do this, shoot off a rest at a center mark in a 30-inch circle at 40 yards. Full choke should put 70 percent of the shot in the circle, modified 60 percent, improved cylinder 45 percent. Cylinder, or no choke at all, should shoot from 25 to 35 percent. With interchangeable choke tubes, a hunter can use the

This system consists of a controller, stepper motor, and in some cases a magnetic pick up. The pick up tells the controller how fast the engine is running and the controller tells the stepper motor to open the throttle more or less to keep the desired speed. 1) Choke Operation The choke operation (opening and closing) can be adjusted by rotating the choke cap. There is a center pointer and index marks on the choke mounting along with an index mark on the thermostatic choke caps. When the vehicle’s ignition is turned on, the heating element inside the choke cap unwinds and allows the choke to open. The time required for the choke to re-close from normal operating temperature will vary from 1530 - minutes, depending on the ambient temperature. If the abovetest passes , rest assured the auto choke components are working properly and the cause of thestarting problem is likely something else. The original 1954 Rochester BC carburetor has an automatic choke that has a heat tube that went from the choke mechanism on the cab to a stove on the exhaust manifold (as you describe, but not like the carb in the photo). As the airflow increases, the fuel distributor automatically increases the flow of fuel to the injectors to keep the fuel/air mixture correctly balanced. For cold starting, a choke on the dash or, on later models, a microprocessor control unit brings a special cold-start injector into operation, which injects extra fuel to create a richer mixture. The time required for the choke to re-close from normal operating temperature will vary from 1530 - minutes, depending on the ambient temperature. If the abovetest passes , rest assured the auto choke components are working properly and the cause of thestarting problem is likely something else. After that, the mower would start on first pull, run great for a few minutes, and then as it warmed up, the autochoke starts surging. Being the mower is so new, I took it to the local Honda repair center, they said it was fixed, I brought it home. The mower literally only gets used for trim work where the riding mower can't get to. As the choke warms up (electrically) it will start to open the choke horn ( on top off carb) and rotate the fast idle cam as you work the throttle. This choke is easily adjusted by loosening the three screws on the black plastic body and rotating the body. In an internal combustion engine, a choke valve modifies the air pressure in the intake manifold, thereby altering the ratio of fuel and air quantity entering the engine. Choke valves are generally used in naturally aspirated engines with carburetors to supply a richer fuel mixture when starting the engine. The electrical choke works same as an inductor. When the current flowing through the choke coil and it changes continuously then a magnetic field is produced which work against the flowing current. As the AC current changes continuously the choke coil try to block the AC current. As the DC does not change so the choke coil easily passed it. Oct 15, 2015 · How much air enters the carburetor depends on the setting of the choke, which covers the valve the more open the choke is, the more air can enter The air is pushed through an opening that narrows called the venturi. The time required for the choke to re-close from normal operating temperature will vary from 1530 - minutes, depending on the ambient temperature. If the abovetest passes , rest assured the auto choke components are working properly and the cause of thestarting problem is likely something else. Sep 21, 2007 · The car operates in "open loop" or mechanical settings only when the engine is cold. Once it warms up the loop closes and the computer takes over the timing and fuel/air mix for the best miles per... As the airflow increases, the fuel distributor automatically increases the flow of fuel to the injectors to keep the fuel/air mixture correctly balanced. For cold starting, a choke on the dash or, on later models, a microprocessor control unit brings a special cold-start injector into operation, which injects extra fuel to create a richer mixture. Sep 23, 2016 · Autochoke Process A cold engine causes the internal spring to exert a consistent pressure on the engine choke control to ensure a closure on the choke plate. When the engine starts up, the engine... Jan 17, 2012 · Make sure your choke coil only gets 12v when the key is in the on or acc positions. Don't worry about the choke light, as it won't work unless you get back into the factory oil switch setup. Keep in mind that the 12v to the coil is just a choke heater that opens the choke during the first few minutes of running. If you wire to an IGN source, you can burn the choke up if the motor is not running - when the motor runs it pulls air though the choke housing cooling it. If the motor is not running and the key left on, the choke housing will burn up. Just make sure the key is off that's all. Read up on how an automatic choke works. If you dont understand how a carburator works, no one can really explain. you need to start learning how a car works, otherwise its just going to be frustration for you. get a 1974 TSM and study it. Feb 05, 2013 · The generator is built with the capability of remote start and has an automatic choke, so that removes two hurdles. There is no provision for turning the fuel valve on/off, so it would have to stay on all the time, but I don't see that as a big problem as long as there are no leaks (which there shouldn't be.) Oct 15, 2015 · How much air enters the carburetor depends on the setting of the choke, which covers the valve the more open the choke is, the more air can enter The air is pushed through an opening that narrows called the venturi.