Honda 1981 GL1100 interstate Owner's Manual page 91

#EMISSION
CONTROL SYSTEM (U.S.A. ONLY)-
a Sources ol Emissions
The combustion process produces carbon monoxide and hydrocarhons-
Control of
hydrocarbons is very important because, under certain conditions,. they react
to form
oiroiolft".i"ul smoi when subjected to sunlight Carbon monoxide does
not react in the
iame way, but it is toxic-
Ho n d a Mo tor c o'' Lt d. ut ili z es le an c a rb u re tols et ti ng sandothe'system st ol educe
carbon monoxide and hydrocarbons.
I Exhaust Lmission Conlrol System
T h eex hau st e m is sio n c o ntlols ys t emisc ompos edof leancarbul etol sett ings ,andno
adjustments shoutd be made except idle speed adjustment with the throttle stop screw
The exhaust emission contlol system is separate fron the crankcase emission contlol
system.
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