IMPORTANT: The inlet needle and float valve
seat must
be
replaced
as
a set.
Needle Valves
Inspect the tapered end of the needle valve for
nicks, scratches, grooves, or signs of distortion.
63324
Carburetor Body
Check all drillings and passages with a syringe
filled with
isopropyl alcohol.
FUEL SYSTEM
CARBURETOR
Visually inspect all gasket surfaces for nicks or
irregularities.
Check for excessive
throttle shaft
play.
Check for
throttle valve misalignment.
If
necessary, remove the calibration pocket core
plug to inspect the pocket for damage or restric-
tions.
• Drive a small punch not more than 1/8 in.
(3
mm) through plug and pry out.
• Install a new core plug with the convex side
up.
Seat the plug using a flat end punch and plastic
mallet. Apply
Gasoila sealer to the
rim
of the
core
plug after
it
is
seated.
1--
__
~
1.
Core plug
9490
If
necessary, remove the lead shot to inspect pas-
sage for restrictions or
leaks. Gently pry up on
lead shot with a sharp edged tool.
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