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Technical Information
236
Emission Control Systems
Problems That May Affect ATV Exhaust Emissions
If you are aware of any of the following symptoms, have the vehicle
inspected and repaired by your ATV dealer.
Symptoms:
1.
Hard starting or stalling after starting
2.
Rough idle
3.
Misfiring or backfiring during acceleration
4.
After-burning (backfiring)
5.
Poor performance (driveability) and poor fuel economy
Federal regulations prohibit removing or disabling a device or
element of design that may affect your engine’s emission
performance unless your ATV will be used exclusively in competition.
If you modify your engine for use in sanctioned competition events,
you must deface or destroy the emission control information label.
17MY TRX420FE1 31HR3830.book Page 236 Monday, September 19, 2016 1:43 PM
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