Evinrude 4906B 4HP 1969 Owner's Manual page 148

12- Swing the hinge up over the pump
bowl, and then secure it in place
ing the plastic thumb screw.
13- ~."ount the fuel pump onto the engine
and secure it with the two screws on top and
one behind the fuel inlet nipple,
FULLY connect the vacuum hose and the
two fuel hoses to their
identified during disassembling.
cation was net made
described. Connect the vacuum hose (from
the engine) to the nipple on the pump cover.
Connect the inlet hose (from the fuel tank)
to the inside nipple (the one closest to the
engine). Connect the outlet
carburetor) to the remaining nipple.
by tighten-
CARE-
proper nipples, as
If identifi-
the hoses as
£0110\,1
hose (to the
FUEL TANK AND LINE
Functional diagram illustrating
tank fuel system from the fuel tank
4-12 FUEL TANK
The procedures
cover service of or iginal equipment
ed by Johnson/Evinrude.
Pressurized Fuel System
A pressure-type
the early model engines not equipped with a
fuel pump. Two hoses were connected
tween the tank and the engine.
served as the fuel transfer
other supplied p ressur ized air to the tank.
For the system to operate,
on the tank must be completely
making the tank air-tight.
The system is primed by operating
primer pump located on top of the fuel tank.
Obsolete pressure-type
on
operated primer pump
to
pump fuel the engine.
pressure forces fuel from the tank
......
"'"
a
complete pressure
to the cylinder.
AND LINE SERVICE
outlined in this section
produc-
fuel tank was used with
One hose
line and the
the fuel fill cap
closed,
fuel tank. A manually-
the fuel tank is worked
After engine start,
to the engine.
4-57
-,
-
be-
the
to
air