GENERAL HAND TOOLS

Note

bottom of fuel bowl, using a 7/16 inch open end

wrench.

Be sure all carbon despoits have been

removed from throttle bore and idle port.

o. Remove discharge jet and fibre washer.

d. It is advisable to reverse flow of compressed

p. Remove well vent jet from center of large

air in all passages to insure that all dirt has been

opening in machined surface of the fuel bowl with

removed. NEVER use a wire or drill to clean out

a small screwdriver.

jets.

q. Remove main jet and fibre washer from inside

e. Replace float assembly if loaded with gasoline,

of fuel bowl, using a screwdriver.

damaged, or if float axle bearing is worn

excessively. Inspect top side of float lever for wear

r . Dissemble choke as follows:

where it contacts fuel valve needle.

1. Make match marks with a file or prick punch

f. Replace the float axle if any wear can be

on choke bracket, choke lever and adjacent shaft

visually detected on the bearing surface.

boss as an aid to correct reassembly.

g. Always replace fuel valve seat and needle

2. Remove choke lever spring.

because both parts wear and may cause improper

float level.

3. Remove choke plate screws and lockwashers.

h . Idle adjusting needle point must be smooth

4. Remove the choke plate and choke shaft and

and free of ridges.

lever.

i . Inspect throttle plate for burrs or damaged

Note

edges. Never clean with a buffing wheel or sharp

instrument.

In some cases it may be necessary to bend

the bowl vent tube up a very little to give

j. Inspect air shutter for bends, butts or damaged

t h e choke clearance. (Use a screw driver

edges.

inserted in the tube.)

k . Check air shutter shaft bearing surface for

5 . Remove bracket assembly screws, packing

wear - see that shaft is straight.

washer and choke bracket.

1. Replace all gaskets and fibre washers every

6. Remove choke shaft hole plug, packing

time carburetor is disassembled.

washer and retainer, using method suggested in

t h r o t t l e body disassembly section "Disassembly

Note

Throttle Body," items K and L.

Replacement parts must be of the same

5-80. CLEANING AND INSPECTION.

part number and specifications.

a . Refer to figure 5-81 for parts identification

m . Check float level with throttle body in an

and proceed as follows:

inverted position, m e a s u r e level from machined

s u r f a c e of body to top of float at highest point.

b. Clean all metal parts thoroughly with cleaning

The measurement, "A" figure 2, should be 1-5/32

solution and rinse in solvent.

inches + or - 1/32 inch. To increase or decrease

measurement, bend float close to float body. See

c. Blow out all passages in the air intake and fuel

figure 5-82.

bowl assembly and throttle body.

5-56