Cub Cadet MTD 70 Series - Manual (Page 64)

61, 65 and 70 Series Vertical Shaft Engines
58
NOTE: Fuel enters the central column through a
port about 1/2” (1cm) from the bottom, to
help prevent the ingress of any residue in
the bottom of the bowl.
NOTE: The orifice in the main jet meters fuel into
the central column.
NOTE: Air from the main jet emulsion port enters
the central column near the top, then gets
bubbled through the emulsion tube into the
metered fuel flow to promote atomization.
NOTE: The main jet secures the emulsion tube in
the central column of the carburetor. See
Figure 4.49.
7. The throttle stop screw has a large pliable lip around
the head of the screw. That lip secures a metering
plug for the pilot and transition ports. Remove the
screw to reach the plug. See Figure 4.50.
8. Carefully pry out the metering plug using a small
screwdriver. See Figure 4.51.
Figure 4.49
Bowl vent ports
Emulsion air port: main jet
Emulsion air port: pilot jet
Emulsion tube
Main jet
Figure 4.50
Welch plug
Fuel feed leg
on central
column for pilot
and transition
shot plug in feed bore
Fuel port to
central column
Figure 4.51