Operation Manual

180
Crankcase Emission Control System Problems That May Affect Motorcycle
Exhaust Emissions
Emission Control Systems
Technical Information
The engine is equipped with a closed
crankcase system to prevent discharging
crankcase emissions into the atmosphere.
Blow-by gas is returned to the combustion
chamber through the air cleaner and the
carburetor.
If you are aware of any of the following
symptoms, have the vehicle inspected and
repaired by your authorized Honda
motorcycle dealer.
Symptoms:
Hard starting or stalling after starting
Rough idle
Misfiring or backfiring during
acceleration
After-burning (backfiring)
Poor performance (driveability) and
poor fuel economy
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