Honda BF5A Owner's Manual page 69

TECHNICAL & CONSUMER INFORMATION
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.
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Hard starting or stalling after starting.
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Rough idle.
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Misfiring or backfiring under load.
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Afterburning (backfiring).
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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 recom-
mend 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 page 40. 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, will require
more frequent service.
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