2009-2012 Honda MUV700 Big Red Service Manual, Page 50Get this manual
GENERAL INFORMATION
EMISSION CONTROL SYSTEMS
Th U.SEnvironmental Protection Agency (EPA), the California Air Resources Board (CARB), and Environment Canada (EC) require that MUVs comply with applicable exhaust em issions standards du ing its useful life, when operated and ma intained according to the instruction prov ided
SOURCE OF EMISSIONS
The combustion process produces ox ides of nitrogen (NOxlca bon monoxide (CO) and hydrocarbons (HC)' Controlling oxides of nitrogen and hydrocarbon emissions is very important because, under certain conditions, they react to form phot ochem ica smog when subjected to sunlightCarbon monoxide does not react in the same way, but it is toxicHonda Motor Co Ltd uti lizes various system to reduce carbon monoxide, oxides of nitrogen and hydrocarbons
EXHAUST EMISSION CONTROL SYSTEM
The exhaust emission control system is composed of the PGM-FI system and no adjustments should be madeThe exhaust emission control system is separate from the crankcase emission con trol system