Carburetor - A device in internal combustion engines that mixes air with a fine spray of liquid fuel., Spark Plug - A component that ignites the air-fuel mixture in the combustion chamber., Crankshaft - The main rotating component of an engine that converts reciprocating motion into rotational motion., Camshaft - A rotating shaft within an engine that controls the opening and closing of the engine's valves, Piston - A cylindrical component that moves back and forth within the engine cylinder., Cylinder - A cylindrical chamber in the engine where combustion takes place., Ignition System - The system responsible for generating the spark needed to ignite the air-fuel mixture., Compression Ratio - The ratio of the cylinder's maximum volume to its minimum volume., Flywheel - A heavy rotating wheel that helps maintain the engine's momentum and smooth out fluctuations in power., Governor - A device that regulates the speed of an engine to keep it running at a constant speed., Two-stroke Engine - An engine cycle that completes a power cycle with two strokes of the piston (compression and power)., Four-stroke Engine: - An engine cycle that completes a power cycle with four strokes of the piston (intake, compression, power, and exhaust)., Sump - The bottom of an engine where oil collects., Fuel Injector - A device that delivers fuel into the combustion chamber in a controlled manner., Throttle - A valve that regulates the amount of air or fuel entering the engine., Exhaust System - The system responsible for expelling the burned gases from the engine., Starter Motor - An electric motor that cranks the engine to start it., Muffler - A device that reduces the noise produced by the exhaust gases., Cooling System - The system that prevents the engine from overheating by dissipating heat., Air Filter - A device that removes impurities from the air entering the engine., Oil Filter - A device that removes impurities from the oil circulating in the engine., Lubrication System - The system that provides oil to various engine components to reduce friction., Tune-up - Routine maintenance procedures to optimize engine performance., Choke - A valve that controls the air-fuel mixture during engine startup., Stroke - The distance the piston travels in a single direction within the cylinder.,

Small Engine Key Terms

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