2014 Kawasaki VERSYS 650 ABS Owners Manual - Page 116

MAINTENANCE AND ADJUSTMENT 115 The Kawasaki Clean Air System (KCA) is a secondary air suction system that helps the exhaust gases to burn more completely. When the spent fuel charge is released into the exhaust system, it is still hot enough to burn. The KCA System allows extra air into the exhaust system so that the spent fuel charge can continue to burn. This continued burning action tends to burn up a great deal of the normally unburned gases, as well as changing a significant portion of the carbon monoxide into carbon dioxide. Air Suction Valve The air suction valve is essentially a check valve which allows fresh air to flow only from the air cleaner into the exhaust port. Any air that has passed Kawasaki Clean Air System the air suction valve is prevented from returning. Inspect the air suction valve in accordance with the Periodic Maintenance Chart. Also, inspect the air suction valve whenever stable idling cannot be obtained, engine power is greatly reduced, or there are abnormal engine noises. Air suction valve removal and inspection should be done by an authorized Kawasaki dealer.