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Video Carburettor
Video Single carburettor 1
Video Single carburettor 2
Video Ecotronic Carburettor
Video Const. Depr. Carbur.
Video Motorc. Carburettor 1
Video Motorc. Carburettor 2
Video 2-barrel Carburettor
Video Diaphragm Pump
Video Intake Pipe
Video Automatic Choke
Video Acceleration
Video Cold Idle Speed
Video Cold Start
Video Part Load
Video Transition
Video Full Load
Video Warm Idle Speed
Video Mikuni carburettors
Video 14 Tasks Carburettor

          A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Automatic Choke


This is an example of a component in a single-choke carburetor. It is an automatic choke, which can be heated either electrically, or through the coolant. It was responsible for closing the choke-flap during cold starting.The air supply was thereby reduced, and through the increasing vacuum, the fuel amount was raised.

With the increasing warmth of the engine, the choke-flap is automatically opened again. This occurs through a bi-metal spring, around whose two connections on the left, the coolant flows. At the same time, through the electric heating, a time-dependent controller is reached. A bi-metal spring by the way, consists of two metals, which when heated, expand differently from each other, thereby decreasing the spring tension. 04/10               Top of page               Index
2001-2015 Copyright programs, texts, animations, pictures: H. Huppertz - E-Mail
Translator: Don Leslie - Email:

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