Evinrude 4906B 4HP 1969, Owner'S Manual

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4-28 FUEL
ADJUSTING
KNOB
4-8 TYPE
n
CARBURETOR
DISASSEMBLING
The following steps outline service pro-
cedures for the Type II carburetor. Except
for the choke system, this carburetor is very
similar to the Type I carburetors covered in
the previous section.
1- Remove the knobs from the low-
speed needle valve. This is accomplished by
holding the knob firmly and at the same
time backing out the retaining screw from
the center of the knob. Once the screw is
removed, the knob may be pulled free of the
needle valve. If the carburetor being ser-
viced has a front shield installed, remove
the top screw.
2- Remove the two screws on the front
side of the carburetor cover. Remove the
cover from the front of the carburetor.
3- Remove the small screen and gasket.
4- Loosen the packing nut and rotate the
low-speed needle valve counterclockwise to
remove it from the carburetor. After the
needle valve has been removed, back-out
the packing nut.
5- The low-speed needle valve has a
removable sleeve. To remove this sleeve,
use an OLD needle valve as follows: First
screw the old valve into the sleeve. Next
clamp the needle valve in a vise. Now, tap
on the carburetor and remove the packing
and sleeve. The packing is installed in front
of the sleeve.