Toro TC 1000 - Page 22

Carburetor Reassembly (cont’d)
the appearance of one piece. Remember that
the pump diaphragm seals against the pump
cover and that the gasket seals against the
carburetor body. See Fig. 20.
Figure 20
3. Remove the 4 screws with lock washers
securing the main diaphragm cover assem-
bly to the carburetor. Carefully lift off the
main diaphragm cover assembly.
NOTE: The main diaphragm assembly and
the main diaphragm packing are thin and
may stick together giving the appearance of
one piece, not two. Remember that the main
diaphragm gasket seals against the car-
buretor body. See Fig. 21.
Figure 21
NOTE: Before removing inlet needle pieces,
inspect inlet needle arm height using the
special “Height gauge” or a depth micro-
meter. The correct height is 1.4 1.6 mm
.062”). See Fig. 22.
I INLET NEEDLE ARM HEIGHT
INLET NEEDLE SPRING
Figure 22
4. Remove the inlet needle pieces from the
carburetor by removing the inlet needle pin
set screw and carefully lifting out the inlet
needle arm with inlet needle pin, the inlet
valve spring and the inlet needle valve. See
Fig. 23.
INLET NEEDLE
ARM AND PIN
Figure 23
5. Remove the throttle adjusting screw, throttle
adjusting screw spring and the high speed
mixture screw. See Fig. 24.
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