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10-58
GROUP 10-
FUEL SYSTEM
NO. 12·32
x
2" SCREWS
(2
REQ'O.)
NO. 12 NUTS
(6
REQ'O.)
ADJUST BOTH NUTS TO FLOAT
HEIGHT SPECIFICATIONS
FIG. 24-
Float Gauge and
Bending Tool
Details
BENDING TOOL-
1/
16"
DIAMETER
SPRING STEEL WIRE OR WELDING
ROD, 8" LONG
82859·8
BEND TAB TO RAISE OR LOWER FLOAT
FIG. 25-
Float
Setting.
6.
Remove the air cleaner anchor
screw and the air horn to main body
retaining screws, and the carburettor
identification tag.
7.
Lift the
air
horn off the fuel
bowl.
8.
Remove the gasket.
INSTALLATION
1.
Make
sure
all holes in the new
gaskets have been properly punched and
V 115l·A
that no foreign
material has
adhered
to the
gaskets Gasket surfaces
must
be
clean
and
flat and free of nicks or
burrs.
2.
Install the gasket
on the car-
burettor
main body.
3.
Carefully position
the
air
horn
assembly over the main
body. Guide the
accelerator
pump
plunger
and
the
secondary throttle dash
pot
piston in
to
their chambers as the air horn is gently
lowered into position.
4.
Install the longest of the air horn
v
1152-4
FIG. 26- Auxiliary (Supplemental) Valve
Setting
retaining
screws in the
left rear hole.
5.
Install the
other air horn
retaining
screws and the carburettor identification
tag.
6.
Insert
the
accelerator
pump
control
rod
into
the
pump
lever. Install
the
pin
and
the
retainer or spring.
7.
Insert
the choke control rod end
into the automatic choke
lever.
With
long
nose pliers,
install
the
retainer.
8.
Connect the fuel inlet
line.
9.
Connect
the
choke clean air
pick-up
and
heat tubes.
10.
Install
the air cleaner.
11. Adjust
the idle
fuel mixture
and
engine
curb
idle
speed.
MAIN AND AUXILIARY
~UPPLEMENTAL)
FUEL INLET
VALVE
REMOVAL
1. Remove the air horn assembly
from the main
bo~y
of the
carburettor.
2.
Pull the float pivot pin
and
remove the float
and
lever
assembly.
3.
Remove the main
fuel inlet
needle
valve. then use the proper size
screwdriver
ACCELERATOR PUMP
DISCHARGE NEEDLE
....
MAIN JETS
v
115S.4
F /G. 27
-
Main Body Valves and Jets
-
Model
4300
4-
V
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