Turn in the pilot screw [A] fully but not tightly, and then
back it out the same number of turns counted during dis-
For the United States and Switzerland models, install the
pilot screw plug as follows:
Install a new plug [B] in the pilot screw hole [C], and apply
a small amount of a bonding agent [D] to the circumfer-
ence of the plug to fix the plug.
Do not apply too much bond on the plug to keep the
pilot screw itself from being fixed.
Turn the carburetor body upside-down, and drop the nee-
dle jet [A] into place so that the smaller diameter end [B]
of the jet goes in first.
Carefully screw in the needle jet holder. It will seat against
the needle jet, pushing the end of the jet into the carbu-
Do not force the needle jet holder [A] and main jet
[B] or overtighten them. The needle jet or the car-
buretor body could be damaged requiring replace-
Slip the jet needle through the hole in the center of the
vacuum piston, and put the spring seat [A] on the top of
the needle. Turn the seat so that it does not block the hole
[B] at the bottom of the vacuum piston.
FUEL SYSTEM 2-13