Polaris Trailboss 7174820 - Manual (Page 57)

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EMISSION CONTROL SYSTEMS
Noise Emission Control System
Do not modify the engine, intake or exhaust components, as doing so
may affect compliance with U.S.A. EPA noise control requirements (40
CFR 205) and local noise level requirements.
Operation on Public Lands in the U.S.A.
Your Polaris vehicle has a spark arrestor that was tested and qualified
to be in accordance with the USDA Forest Service Standard 5100-1C.
Federal law requires that this spark arrestor be installed and functional
when the vehicle is operated on public lands.
Operation of off-road vehicles on public lands in the U.S.A. is
regulated by 43 CFR 8343.1(c). Violations are subject to monetary
penalties. Federal regulations can be viewed online at
www.gpoaccess.gov/ecfr/.
Crankcase Emission Control System
This engine is equipped with a closed crankcase system. Blow-by
gases are forced back to the combustion chamber by the intake system.
All exhaust gases exit through the exhaust system.
Exhaust Emission Control System
The emissions from the exhaust of this vehicle are controlled by engine
design, including factory-set fuel delivery and ignition. The engine
and related components must be maintained at Polaris specifications to
achieve optimal performance.
Engine idle speed is the only adjustment Polaris recommends that the
operator perform. Any other adjustments should be performed by an
authorized Polaris dealer.
The emissions label is located on the crossbar under the seat .
Electromagnetic Interference
This spark ignition system complies with Canadian ICES-002.
This vehicle complies with the EMC requirements of European
directives 97/24/EC and 89/336/EEC.