2015 Kawasaki Vulcan 900 Classic Owners Manual - Page 110

2015 Kawasaki Vulcan 900 Classic Manual

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MAINTENANCE AND ADJUSTMENT 109 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 Valves The air suction valve is essentially a check valve which allows fresh air to flow only from the air cleaner into the Kawasaki Clean Air System exhaust port. Any air that has passed the air suction valve is prevented from returning. Inspect the air suction valves in accordance with the Periodic Maintenance Chart. Also, inspect the air suction valves whenever stable idling cannot be obtained, engine power is greatly reduced, or there are abnormal engine noise. Air suction valve removal and inspection should be done by a competent mechanic following the instructions in the Service Manual.

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MAINTENANCE AND ADJUSTMENT
109
Kawasaki Clean Air System
The
Kawasaki
Clean
Air
System
(KCA) is a secondary air suction sys-
tem that helps the exhaust gases to
burn more completely. When the spent
fuel charge is released into the ex-
haust 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 chang-
ing a significant portion of the carbon
monoxide into carbon dioxide.
Air Suction Valves -
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
the air suction valve is prevented from
returning. Inspect the air suction valves
in accordance with the Periodic Main-
tenance Chart.
Also, inspect the air
suction valves whenever stable idling
cannot be obtained, engine power is
greatly reduced, or there are abnormal
engine noise.
Air suction valve removal and inspec-
tion should be done by a competent
mechanic following the instructions in
the Service Manual.