20
SEAT
5/32" (3.969 mm)
FLAT PUNCH
THROTTLE
END
CLIP
CHOKE
END
51
52
Inlet Needle and Seat
Make sure the seat cavity is clean. Moisten the seat
with oil and insert the seat with the grooved side down
and away from the inlet needle. Press the seat into
the cavity using a 5/32" (3.969 mm) flat punch, making
sure it is firmly seated (diag. 51). On Series "7"
carburetors, install the seat retainer into the cavity
and push it down using the flat punch until it contacts
the seat.
PUSH IN UNTIL
SEAT RESTS ON
BODY SHOULDER
IF YOUR CARBURETOR
HAS A STEEL SEAT
RETAINING RING
RE-INTSALL AFTER
SEAT INSTALLATION
INSERT THIS
FACE FIRST
INLET NEEDLE
SEATS AT THIS
POINT
OPEN END OF CLIP
53
LONG END
OF CLIP
OPEN END
OF CLIP
CLIP
54
55
POINTS TOWARD
THE CHOKE END
LONG END
OF CLIP
Points toward choke
end
Points toward choke end
SERIES 7 WALBRO / LMK
The inlet needle hooks onto the float tab by means of
a spring clip. To prevent binding, the long, straight
end of the clip should face the choke or air filter end
of the carburetor as shown (diag. 52).
Float Installation
On Series 7 carburetors, slide the hinge pin into the
hinge on the float. Position the needle into the fuel
inlet and snap the float pin into the tabs on the float
bowl. Float height is not adjustable.
On Series 7 carburetors and the Walbro LMK, reinstall
the inlet needle on to the float and place it into the
carburetor (diag. 53).
1. When rebuilding a carburetor with a clip on
the needle, position carburetor float side up
for assembly.
2. Place the inlet needle and spring clip onto
the float as shown. The long end of the spring
clip must point towards the choke end of the
carburetor. This will ensure that the inlet
needle will move up and down in a straight
line (diag. 53).
3. To set the proper float height on carburetors
except Series 7 and Walbro LMK, see
adjusting procedure.
4. Some Tecumseh float style carburetors have
a damper spring which is installed as shown
in diag. 55.
