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14-58
CARBURETOR-WWC3
should be
5/32
inch from the surface of the bowl (gas-
ket removed) to the top of the float at the center.
If an adjustment is necessary, hold the float on the
bottom of the bowl, then bend the float lip toward
or
away from the needle, using Tool
73605.
Recheck the
inch setting again, then repeat the lip bending op-
eration as required.
CAUTION: When bending the float lip, do not al-
low the lip to push against the needle as the rubber
tip can be compressed sufficiently to cause a false
setting which will affect correct level of fuel in the
bowl. After being compressed, the rubber tip is
very slow to recover its original shape.
It is very important that the float lip be perpendicu-
lar to the needle or slanted not more than 10 degrees
away from the needle when the float is set correctly.
(7)
Reassemble the air horn.
Spring Staged Choke Adjustment
The new spring staged choke, shown in (Fig.
25)
is
a device incorporated in the choke mechanism which
limits the choke blade closing torque when cranking
the engine at temperatures below zero. Thus the
spring staging of the choke is a better match for the
engine's starting mixture requirements at the low
temperatures.
To test the spring staged choke for correct operat-
ing clearance,
refer
to (Fig.
25),
then proceed
as
fol-
S T E P - U P PISTON C O V E R
PLATE
I
A C C E L E R A T O R P U M P LI N K
\
FUEL
I N L E T
FITTING
PRESSURE
A P P L I E D T O
HUB LEVER
3
F O R A D JU S T M E N T
Fig. 25-Spring
Staged Choke Clearance
lows:
(1) Push on the hub lever with the finger, at the
closed choke position. A small opening should exist
between the shaft and the hub levers, as shown in
(Fig.
25).
(2)
Using a drill or gage, measure the opening. The
opening should be from .010 to
.040
inch.
(3) If an adjustment is necessary, bend the hub
lever tang until the correct opening has been ob-
tained.
STEP-UP
PISTON
C O V E R
PLATE
A C C E L E R A T O R P U M P
P L U N G E R S T E M
A C C E L E R A T O R P U M P
C H O K E
\
R O C K E R A R M
C H O K E
OPERATING
L I N K
A C C E L E R A T O R P U M P
CONNECTOR R O D
L
MAIN B O D Y
\
DISTRIBUTOR
P R I M A R Y THROllLE
SHAFT
A R M (OUTER)
NK585
VACUUM
TUBE
FITTING
Fig. 1 4 a r b u r e t o r Assembly IAfB)
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