Emission Control System Information - TOHATSU MFS 50A Owner's Manual

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EMISSION CONTROL SYSTEM INFORMATION

ENOM01000-0
Emission Sources
Carbon monoxide, oxides of nitrogen and
hydrocarbons are produced in the course
of the combustion process. Controlling
production of oxides of nitrogen and
hydrocarbons is very important because
they react to form a photochemical smog
under certain conditions when subjected
to sunlight. Carbon monoxide does not
react in the same way, but is a toxic
byproduct.
ENOM01001-0
Ignition Timing Control System
To reduce the amount of HC, CO and NOx
produced, the ignition timing control sys-
tem continuously adjusts the ignition tim-
ing.
ENOM01002-0
EFI (Electronic Fuel Injection) system
The EFI system relies on, multiport fuel
injection for both engine control and fuel
control. The Engine Control Unit (ECU) has
several sensors to determine how much
fuel is needed for injection under all oper-
ating conditions.
ENOM01003-0
Clean Air Acts of the United States
and California, and Environment
Canada
EPA, California, and Canadian regulations
require all manufacturers to provide written
instructions that describe the operation
and maintenance of commercial emission
control systems.
The following instructions and procedures
must be followed in order to keep the
emissions from your engine within these
emission standards.
ENOM01004-0
Tampering and Modifications
Tampering is a violation of the Federal
Laws of the United States and California.
TTampering with or altering the emission
control system could cause emissions to
increase beyond legal limits. The following
acts, although not all inclusive, are consid-
ered as tampering:
Removing or modifying any part of the
intake, fuel or exhaust system.
Modifications that cause the engine to
operate outside its design parameters.