2008 Honda Aquatrax ARX1500T3/T3D factory service manual, Page 37Get this manual
GENERAL INFORMATION
EMISSION CONTROL SYSTEMS
SOURCE OF EMISSIONS
The combustion process produces carbon monoxide, oxides of nitrogen and hydrocarbonsControl of oxides of nitrogen and hydrocarbons is very important because, under certain conditions, they react to form photochemical smog when subjected sunlightCarbon monoxide does not react in the same way, but is toxicHonda Motor Co Ltdutilizes lean injection settings as well as other systems, reduce carbon monoxide, oxides of nitrogen and hydrocarbons