Crankcase Emission Control System Description - Suzuki GSF1250 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 (breather) hose, air cleaner and throttle body.
1. Air cleaner box
2. Oil breather separator
2
3
3. Oil return
"A": Fresh air
"B": Fuel/Air mixture "D": Engine oil
"C": Blow-by gas
B718H11201002
1
"A"
"B"
"C"
"D"
I718H1120038-04