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7.10 EMISSION CONTROL SYSTEM
Emission Source
Exhaust gas contains carbon monoxide, nitrogen oxides (NOx) and hydrocarbons.
It is very important to control the emissions of NOx and hydrocarbons as they
are a major contributor to air pollution. Carbon monoxide is a poisonous gas. The
emission of fuel vapors is a source of pollution as well. The pressure washer engine
utilizes a precise air-fuel ratio and emission control system to reduce the emissions
of carbon monoxide, NOx, hydrocarbons and evaporative fuel emissions.
Regulation
Your engine has been designed to meet current Environmental Protection Agency
(EPA) clean air standards. The regulations dictate that the manufacturer provides
operation and maintenance standards regarding the emission control systems. Tune
up specications are provided in the Specications section and a description of the
emission control system may be found in the appendix to this manual. Adherence
to the following instruction will ensure your engine meets the emission control
standards.
Modification
Modication of the emission control system may lead to increased emissions.
Modication is dened as the following:
Disassembling or modifying the function or parts of the intake, fuel or
exhaust system.
Modifying or destroying the speed governing function of the pressure
washer.
Engine faults that may affect emission
Any of the following faults must be repaired immediately. Consult with your
authorized service centre for diagnosis and repair:
Hard starting or shut down after starting.
Unstable idle speed.
Shut down or backre after applying an electrical load.
Backre or after re.
Black smoke and/or excessive fuel consumption.
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