2003+ Mercury Mariner 225 HP EFI 4-Stroke Service Manual, Page 290Get this manual

2003+ Mercury Mariner 225 HP EFI 4-Stroke Service Manual, Page 290

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EMISSIONS
Emissions are what comes out of the exhaust system in the exhaust gas when the engine is runningThey are formed as result of the process of combustion or incomplete combustionTo unders