Mercury 305 CID - Emissions System Connections

BOS / SAV EMISSIONS - 5F-1190-823225--1 1096
Emissions System Connections
1. Install the positive crankcase ventilation (PCV)
valve in the port valve cover.
2. Connect hose to PCV valve. Connect opposite
end of hose to fitting on front of carburetor.
71925
73701
b
a
c
a - PCV Valve
b - Hose
c - Carburetor Fitting (Connect Hose Here)
3. Connect hoses to ported vacuum switch (PVS)
as shown.
71924
73702
a
b
a
b
c
d
c
d
e
a - Ported Vacuum Switch
b - Hoses (Switch to Y-Fitting)
c - Hoses (To Front Side of Carburetor)
d - Hose (Y-Fitting to Back Side of Carburetor)
e - Sight Tube from Mechanical Fuel Pump (Clear Hose)