Reassembly:
1.
See Figure 6-20. Turn the carburetor upside
down and install the new needle valve, float,
float hinge pin and fuel bowl gasket in the repair
kit. Make sure the wire clip properly engages
the groove around the end of the needle valve
and loops around the metal tang
of
the float.
(The clip pulls down on the needle valve when
the float level drops, breaking the needle loose
if
it is stuck.) Check to see that the float moves
freely without binding.
2. See Figure 6-21. Check the float level as
shown while the carburetor is still upside down.
Measure the height above the bowl gasket
flange on the side opposite the hinge. Make
sure the full weight of the float is resting on the
needle valve. Remove the float and bend the
metal tang
to
adjust the height.
lA CAUTION! Remove the float before bend-
ing
the tang
so
as
not
to
damage the
soft
nose
of
the needle valve.
3.
Install the float bowl and the main mixture
screw assembly.
4. Install the idle and main fuel mixture screws.
Turn them lightly by hand until they seat. Then
tum
the idle mixture screw out 1 turn and the
main fuel mixture screw out 1-3/8 turns so that
the engine will start and run.
5. If it is necessary
to
reassemble the throttle
or
choke, secure the plate screws such that they
will not loosen.
lA CAUTION! Loose
throttle
or
choke
plate
screws
can
get
drawn
into
the engine
and
cause serious engine damage.
6-24
WIRE CLIP
FLOAT
HINGE PIN
NEEDLE VALVE
-·~---~
FLOAT HINGE PIN
RETAINING SCREW
FIGURE 6-20. FLOAT INSTALLATION (GASOLINE)
0.59-0.63 INCH
(15-16
mm)
BEND METAL TANG TO
ADJUST FLOAT HEIGHT
THE FULL WEIGHT
OF
THE FLOAT MUST
REST ON THE NEEDLE VALVE WHILE
MEASURING FLOAT HEIGHT
FIGURE 6-21. FLOAT LEVEL (GASOLINE)
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