MAINTENANCE
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Air Intake and Exhaust System
Fuel & Exhaust Detecting System
Fuel & exhaust system optimization is detected by oxygen
sensors
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. An oxygen sensor installed on each exhaust pipe
detects air & fuel combustion condition by measuring oxygen
density and transferring it as an electrical signal to the ECU. If
the ECU determines that combustion is not optimal, it will make
adjustments to fuel injection in accordance with signals from the
TPS and Intake Air Temperature sensors. By this way, the ratio
of air against fuel can be optimized for complete combustion.
Air Intake Valve
An air intake valve is essentially a valve which allows fresh air to flow only from the air filter into the
engine. Any air that passes through the air intake valve is prevented from returning. Have a dealer inspect
the air intake valves in accordance with the Periodic Maintenance Chart. Also, have the air intake valves
inspected whenever stable idling cannot be obtained, engine power is greatly reduced, or there are
abnormal engine noises.
Air intake valve removal and inspection should only be performed by an authorized CFMOTO dealer.
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