Fuel Describe fuel types and manufacturers' recommendations for outboard and stern drive engines. Additives Identify various types of fuel additives. Engine fuel systems Identify engine fuel system tank, line, filter, pump, and hose components and explain their operation. Carburetors Identify the major types of two and four cycle carburetors and carburetor components and explain their operation. Reed valves Describe reed valve operation as used in two cycle engines.
Fuel pumps Explain two and four cycle fuel pump operation.
Two cycle fuel systems Explain two cycle carburetor theory and operation. Four cycle fuel systems Explain four cycle fuel carburetor theory and operation. Identify components of a four cycle carburetor. Carburetor circuits Explain carburetor metering circuit operation. Oil metering systems Identify the different types of oil metering systems used on outboard motor fuel-oil mixtures.