Crankcase Emission Control System Description - Suzuki VLR1800 Service Manual

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.
2
1
1. PAIR control solenoid valve (For E-02, 19, 24, 33)
2. PAIR control solenoid valve (For E-03, 28)
3. PCV hose "B": Fuel/Air mixture
"A": Fresh air "C": Exhaust gas
Emission Control Devices:
B822H11201002
3
"A"
"B"
"C"
"D"
"E"
"D": Blow-by gas
"E": Return oil
1B-2
I822H1120030-03