Crankcase Emission Control System Description - Suzuki 2005 GSF1200 Service Manual

1B-2 Emission Control Devices:

Crankcase Emission Control System Description

The engine is equipped with a PCV system to prevent discharging crankcase emissions into the atmosphere. Blow-by
gas in the engine is constantly drawn into the crankcase, which is returned to the combustion chamber through the
PCV hose, air cleaner box and carburetors.
1. To PAIR control valve
2. PCV hose
1
2
"A": Blow-by gas "C": Fuel/Air mixture
"B": Fresh air "D": Fuel emulsion
B649G11201006
"A"
"B"
"C"
"D"
"E"
"F"
I649G1120006-02
"E": Vacuum
"F": Exhaust gas