FUEL SYSTEM 2-17
Do not apply force to the jets and needle jet holder
or overtighten them, as this could damage the jets
or the carburetor body, requiring replacement.
First insert the smaller end  of the needle jet [A]to the
Then, screw in the needle jet holder [C].
Olnstall the needle jet holder, noting the following.
The #1 and #4 carburetor has 0.7 mm x 14 holes [A]
The #2 and #3 carburetor has 0.6 mm x 18 holes 
.Install the float valve needle [A]in the valve seat  and
hook the needle hanger onto the float tang [C].
.Insert the float pivot pin into the pivot and the float holes
(see Service Fuel Level Adjustment).
. Set the float to the standard height (see Service Fuel
.Insert the needle intothe hole in the center of the vacuum
piston [A],and place the spring seat  over the needle.
OThe spring seat must be installed without blocking the
After installing the upper chamber cover, check to make
sure that the vacuum piston moves smoothly in the car-
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 U.S.A., Canada and Taiwanmodel, installthe pilot
screw plug as follows: install a new plug  in the pilot
screw hole of the carburetor body [C], and apply a small
amount of a bonding agent [D]to the circumference of the
plug to fix the plug.
Do not apply too much bonding agent to the plug or
the pilot screw itself may be fixed.