Mercury Mariner Outboard 40/50/55/60 2-stroke Service Manual, Page 163Get this manual

Mercury Mariner Outboard 40/50/55/60 2-stroke Service Manual, Page 163

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Table of Contents Exhaust Emissions Standards What Are Emissions? Hydrocarbons HC Carbon Monoxide CO Oxides of NitrogenNOx Controlling Emissions Stoichiometric (14.7:1) AirFuel Ratio Outboard Hydrocar