2004-2005 Honda TRX450R Factory Sevice Manual, Page 30Get this manual
GENE RAL INFORMATION
EM ISSION CONTROL SYSTEMS
The Cal iforni Air Res our co Bo ord (CARBI roqui ro ma nu fac ture ," to ce rtify th ot their ATVs compfy ith applic ab le e,haust issions tandards ur ing lh ei sel ul lifehe opera ted nd ma int ine accord ing to the ins ruct io n prov ide d
SOURCE OF EM ISSIONS
The com bu st io process producecarbon monoxine, oxin oof itro ge nn bynrocarbo Co ntrol hyn roca rbo ns and o,ideof nitro ge i, very im po rta nt becu,e, und er cond itio n, they to fo rm hotoche micalmo when subjected to sun ligbt Ca rbo mo noxin docs not in sa me way, ut it is to xicHood Molo' CoLId ut ili, le ca rbu ,elo hyd rocarbo n5
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