Mercury Mariner 30/40 4-Stroke Outboard Service Manual 1998, Page 173Get this manual
EMISS10NS
FUEL SYSTEM
Section 3CEmissions
Table of Contents
Exhaust Emissions Standards What Are Emissions? HydrocarbonsHC Carbon MonoxideCO Oxides of NitrogenNOx Controlling Emissions Stoichiometric (14.7: 1) AirFuel Ratio Outboard Hydrocarbon Emissions Reductions 13 .1Per Year Over Model Years 3C-2 3C-2 3C-2 3C-2 3C-2 3C-2 3C-3 3C-3 3C-3