Service Manual

FUEL SYSTEM 3-13
Carburetor
With the float [A] assembly installed onto the carburetor body [B],
hold the carburetor upside down at eye level. Gently support the float
with a finger and bring it down slowly so that the float arm tab [C]
just touches the float valve [D]. The float lower surface [E] should be
parallel with the carburetor body mating surfaces [F].
If the float position is not correct, replace the float with a new one.
Inspect the float valve for excessive wear or damage. The tip should
be smooth, without any grooves, scratches, or tears. The rod at the
other end of the needle should move smoothly when push in and
released.
If either the needle or the seat is worn or damaged, replace the float
assembly and carburetor body as a set.
Inspect the tapered portion [A] of the pilot screw [B] for wear or
damage.
If the pilot screw is worn or damaged on the tapered portion, replace
it.
Check the spring for weakened condition, replace it, if necessary.