A choke valve is sometimes installed in the carburetor internal combustion engines. Its purpose is to restrict the flow of air so as to enrich the fuel-air mixture while starting the engine. The carbureter (American spelling, a. ... It has been suggested that Car engine be merged into this article or section. ... Look up air in Wiktionary, the free dictionary. ... For the workstation, see SGI Fuel. ...

The choke valve used to be a standard item in car engines until the 1970s. The valve could be activated manually, by a lever or pull handle on the dashboard, or automatically by a heat-sensing mechanism. A small variety of cars, the most popular kind of automobile. ... The principle of the lever tells us that the above is in static equilibrium, with all forces balancing, if F1D1 = F2D2. ... Image:Oldtimer-Dashboard. ... A red-hot iron rod cooling after being worked by a blacksmith. ...

This device fell into disuse after the development of fuel injection and electronic ignition systems, but is still found in carbureted motorcycles and other special-purpose engines. Fuel Injection is a method or system for metering fuel into an internal combustion engine. ... The ignition system of an internal-combustion engine is an important part of the overall engine system. ... Imme R 100,Germany, 1948/1949 A 125 cc motorcycle, the Italian-manufactured Cagiva Planet. ...