Kohler MAGNUM M18

SECTION 6A
FUEL SYSTEMS AND GOVERNORS
4. Operate the throttle lever and check for binding
between the throttle plate and carburetor bare.
Loosen screws and adjust plate as necessary;
then tighten screws securely.
Reassemble Carburetor
Refer to the following “Reassembly” portion of this
section.
Reassembly
1. install the fuel inlet seat gasket and fuel inlet seat
into carburetor body. Torque seat to 35/45 In. Ib.
2. Install the fuel inlet needle into inlet seat. Install
float and slide float pin through float hinge and
float hinge towers on carburetor body.
3. Set float levet: Invert carburetor so the float tab
rests on the fuel inlet needle. There should be
11/64" (+ or - 1/32") clearance between the
machined surface of body and the free end of
float. Bend the float tab with a small screwdriver
to adjust. Refer to Figure 6A-13.
Bend Tab
To Adjust
Inverted Carburetor
Figure 6A-13. Setting Float Level.
4. Set float drop: Tum the carburetor over to its nor-
mal operating position and aliow float to drop to
its lowest level. The float drop should be limited
to 1-1/32” between the machined surface of
body and the bottom of the free end of float.
Bend the float tab with a smaif screwdriver to ad-
just. Refer to Figure 6A-14.
Bend Tab
To Adjust
Figure 6А-14. Setting Float Drop.
5. Check float to float hinge tower clearance: In-
vert the carburetor so the float tab rests on the fuel
inlet needle. Insert a .010" feeler gauge between
float and float hinge towers. If the feeler gauge
cannot be inserted, or there is interference be-
tween the float and towers, file the towers to ob-
tain the proper clearance. Refer to Figure 6A-15.
0.010" Feeler Gauge
(Both Sides)
Float
М
File If
Necessary ~
Float Hinge Towers
(On Carburetor Body)
Inverted Carburetor
Figure 6A-15. Checking Float Clearance.
6. Install the bowl gasket and baffle gasket. Position
baffle gasket so the inner edge is against the float
hinge towers.
7. Install the fuel bowl so it is centered on the baffle
gasket. Make sure the baffle gasket and bowl are
positioned properly to ensure a good seal.
8. Install the bowl retaining screw gasket and bowl
retaining screw. Torque screw to 50/60 In. Ib.
6А.11