By Mick Bailey
 
Manual transmission, also referred to as a “standard transmission” (and less commonly, a manual gearbox), is a type of transmission that utilizes a clutch that is manually operated by the driver, hence the name. The clutch is engaged and disengaged by a foot pedal for automobiles or by a hand lever for motorcycles and similar vehicles, and by a hand (automobile) or foot (motorcycle) operated gearstick. A conventional 5-speed model is most often the standard equipment for a base-model car. Manual transmission is characterized by certain gear ratios that can be selected by locking the selected pair of gears to the output shaft inside the system.

By Mick Bailey
A carburetor is a device used by older models of cars to combine air with fuel to make cars run. The primary principle behind the technology of carburetors for cars is Bernoulli’s principle. This means that when air moves faster, its static pressure becomes lower and its dynamic pressure becomes higher. Contrary to what some people believe, it is not the
accelerator that controls the flow of liquid fuel.  What it controls is the carburetor mechanisms that are responsible for the measurement of the air flow into the engine.  The speed of this air flow and its pressure then determine the measurement of fuel brought to the airstream.