Figure 4-7. Float Setting

TM 10-3930-644-14&P

7. Install float and lever assembly on throttle body

and insert axle shaft through float lever.

8. Measure distance from gasket on throttle body.

Distance (Fig. 4-7) should be .250" from gasket

face to nearest edge of float. Use a long nosed

pliers to bend lever as necessary to attain this

measurement.

NOTE

Do not. bend, twist or apply pressure

to float bodies.

The float bodies

when viewed from the free end of the

bodies, must be centered and at right

angles to the machined gasket

surface and must move freely on the

float axle shaft.

Figure 4-7. Float Setting

9. Install choke shaft p cking in recess in choke

bracket and tap bracket in place on fuel bowl

4. Install yoke on end of accelerator cable

throat to seat packing. Secure bracket with

(Fig. 4-8) over carburetor lever and install yoke

screws.

pin through yoke and lever. secure yoke to lever

with cotter pin.

10. Install choke shaft and lever assembly and

return spring.

5. Install choke cable ( ig. 4-8) through clamp-on

choke bracket and into block. Tighten screw to

11. Insert choke valve on lever and center valve in

secure cable in block. Tighten clamp screw.

casting before tightening screws.

6. Refer to TOPIC 6 to adjust carburetor and choke

12. Install main nozzle through bottom of casting.

linkage.

Place new O-ring and gasket in recess and

install power jet in fuel bowl behind nozzle.

7. If the carburetor levers (Fig. 4-8) were removed

Install nozzle plug.

during disassembly, adjust governor lever on

13. Invert throttle body and lower fuel bowl over

shaft to angle illustrated.

floats. Be sure venturi guides float bodies into

position.

14. Install bowl screws and lockwashers.

Tighten

screws gradually until all are tight.

15. Install drain plug in bottom of bowl.

G. INSTALLATION

1. If studs were removed, install studs in threaded

holes in carburetor flange. Use a new gasket

and install carburetor on manifold.

Secure

carburetor with nuts and lockwashers.

2. Connect inlet fuel line to carburetor. Install air

cleaner hose on carburetor and tighten hose

clamps.

3. Connect governor rod to carburetor lever. Insert

threaded end of ball joint (Fig. 4-8) through lever

and secure with ball joint nuts.

Figure 4-8. Carburetor Linkage Adjustments

R-123-1

3-64