EMISSION CONTROL SYSTEM INFORMATION
Source of Emissions
The combustion process produces carbon monoxide, oxides of
nitrogen, and hydrocarbons. Control of hydrocarbons and oxides of
nitrogen is very important because, under certain conditions, they
react to form photochemical smog when subjected tosunlight.
Carbon monoxide does not react in the same way,but it is toxic.
Honda utilizes lean carburetor settings and othersystems to reduce
the emissions of carbon monoxide, oxides of nitrogen,and
hydrocarbons.
The US and California Clean Air Acts
EPA and California regulations require all manufacturers tofurnish
written instructions describing the operation and maintenance of
emission control systems.
The following instructions and procedures must be followed in order
to keep the emissions from yourHonda engine within the emission
standards.
Tampering and Altering
Tampering with or altering the emission control systemmay increase
emissions beyond the legal limit. Among those acts that constitute
tampering are:
•Removal or alteration of any partof the intake, fuel, or exhaust
systems.
•Altering or defeating the governor linkage or speed-adjusting
mechanism to cause the engine to operate outside its design
parameters.
Problems that may Affect Emissions
If you are aware ofany of the following symptoms, have your engine
inspected and repaired by your servicingdealer.
•Hard starting or stalling after starting.
•Rough idle.
•Misfiring or backfiring under load.
•Afterburning (backfiring).
•Black exhaust smoke or high fuel consumption.
MAINTENANCE
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