Engine Block
Structure which contains the cylinder, plus any cylinder sleeves and coolant passages.
Piston
An object in an engine moving up and down, pulling fuel in then making it into a spark to create energy for an engine
Fuel Bowl
Piece under a carburetor that allows fuel through the emulsion tube and vent into the carburetor throat
Choke Valve
Chokes the air supply in order to provide the proper ratio of fuel to air
Carburetor Barrel / Throat
The passage that air and fuel move through, between the choke and the throttle
Crankshaft
Converts the reciprocating motion into rotational motion. Pumps the piston up and down in the combustion chamber.
Throttle Plate
Allows more air to enter the engine and thereby increases engine power.
Connecting Rod
Rod connecting the Cylinder head to the crankpin of a crankshaft
Venturi
Causes air / fuel to flow faster through it’s cone shape
Emulsion Tube
Mixes fuel and air for the main circuit. Maintains the air fuel ratio at all speeds.
Float
Controls fuel flow, maintaining the fuel level in the chamber. When the fuel level raises this high enough, the needle and seat are forced to close.
Carburetor Fixed Jet
Mixes air and fuel by means of several jets.
Carburetor Adjustable Jet
Controls fuel / air mixture between idle and 1/4 throttle