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 LEGEND FOR FIGURE 5-83
Arm
13.
1.
F u e l pump
7.
Lockwasher
2.
Stud
8.
Capscrew
14.
Retainer
3.
Gasket
9.
Lockwasher
15.
Cover & Valve
4.
Repair kit
10.
Screw
16.
Cover
5.
Diaphragm k i t
11.
Retainer
17.
Lockwasher
12.
Body
18.
Capscrew
6.
Nut
machined surface. The float setting is measured
with the shortest distance between the
from the machined surface (no gasket) of cover to
s c r e w holes and beveled edge into place
top side of float bodies at highest point.
first. The throttle plates are made with two
o p p o s i t e edges beveled to-fit the throttle
2. Bending Float Lever. To increase or decrease
b o d y bore when the plate is closed. The
distance between float body and machined surface,
throttle plate will not close tightly if
use long nosed pliers and bend lever close to float
installed upside down. Pressure on the plate
must be maintained with the finger until
body.
t h e screws are tightened. When properly
installed, the side of the throttle plate
Note
f a r t h e s t away from the mounting flange
R e p l a c e with new float if position is off
will be aligned with the idle port when the
more than l/l6 inch.
plate is closed.
q. Insert venturi in fuel bowl bore, small opening
k. Install idle adjusting needle and friction spring
in threaded passage on side of throttle body. Seat
down.
l i g h t l y with screwdriver and back out 1-1/4 full
turns as preliminary adjustment.
Note
1 . Install idle jet in counter-bored passage in
The flat side of venturi must be toward the
machined surface.
well vent jet.
Assemble Carburetor Bodies.
m. Install fuel valve seat and fibre washer, using
wrench.
r. Assemble the two completed bodies and four
screws and lo&washers and tighten screws evenly
n. Place new throttle body to fuel bowl gasket on
and firmly.
machined surface of fuel bowl cover.
s . Hold the throttle lever in a closed position
o. Install fuel valve needle in seat followed by
and turn the throttle stop screw in until it just
float and float axle;
c o n t a c t s the stop pin, then turn screw in l-l/Z
additional turns as a preliminary adjustment of
p. Float Level. Check position of float assembly
the idle speed.
f o r correct measurement to obtain proper float
l e v e l , using a depth gauge. The "A" dimension
5-82.
INSTALLATION.
should be 1-5/32 inch plus or minus 1/32 inch, see
a. Place the carburetor against the manifold
1 . With bowl cover assembly in an inverted
f l a n g e and install fasteners. Tighten evenly to
position, viewed from free end of float, the float
prevent vacuum leaks, and always install a new
bodies must be centered and at right angles to the
gasket.
5-58
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