Honda GC160 Owner's Manual page 30

Problems That May Affect Emissions
If you are aware of any of the following symptoms, have your engine
inspected and repaired by your servicing dealer.
• Hard starting or stalling after starting.
• Rough idle.
• Misfiring or backfiring under load.
• Afterburning (backfiring).
• Black exhaust smoke or high fuel consumption.
Replacement Parts
The emission control systems on your Honda engine were designed,
built, and certified to conform with EPA and California emission
regulations. We recommend the use of genuine Honda parts whenever
you have maintenance done. These original-design replacement parts
are manufactured to the same standards as the original parts, so you
can be confident of their performance. The use of replacement parts
that are not of the original design and quality may impair the
effectiveness of your emission control system.
A manufacturer of an aftermarket part assumes the responsibility that
the part will not adversely affect emission performance. The
manufacturer or rebuilder of the part must certify that use of the part
will not result in a failure of the engine to comply with emission
regulations.
Maintenance
Follow the maintenance schedule on 13. Remember that this schedule
is based on the assumption that your machine will be used for its
designed purpose. Sustained high-load or high-temperature operation,
or use in unusually wet or dusty conditions, will require more frequent
service.
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