MAINTENANCE & ADJUSTMENTS
l Disconnect the spark plug cap and wear heavy gloves
when working near the mower deck, belts, or blades.
l Never support or stand the riding mower on either side
or end. Fuel, oil, or battery electrolyte can leak out.
EMISSION CONTROL SYSTIEMI 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 to sunlight. Carbon monoxide does not react the
same way, but it is toxic.
Honda utilizes lean carburetor settings and other systems to
reduce the emissions of carbon monoxide, oxides of nitrogen,
and hydrocarbons.
The U.S. and California Clean Air Acts EPA and California regulations require all manufacturers to
furnish written instruction describing the operation and
maintenance of emission control systems.
The following instructions and procedures must be followed to
keep the Honda engine emissions within the emission
standards.
Tampering and Altering Tampering with or altering the emission control system may
increase emissions beyond the legal limit. Among those acts
that constitute tampering are:
l Removal or alteration of any part of the intake, fuel, or
exhaust systems.
l Altering or defeating the governor linkage or
speed-adjusting mechanism to cause the engine to
operate outside its design parameters.
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