Remove Carburetor - 13 H.p. Engine; Disassemble Carburetor; Choke Shaft; Removing Throttle Shaft - Columbia ParCar P4G Service Manual

Remove Carburetor - 13 H.P. Engine

1. Loosen swivel screw securing choke cable to choke
lever.
2. Remove two hex nuts holding carburetor intake elbow
and throttle cable support bracket. Remove throttle
cable support bracket and intake elbow.
3. Pry throttle cable from throttle lever swivel.
4. Slide carburetor, carburetor gasket, intake insulator
spacer, and insulator gasket from engine mounting
studs.

Disassemble Carburetor

1. Remove hex bolt from float bowl. Remove float bowl
and float bowl gasket from carburetor. See Figures 12
and 13.
2. Gently tap float pin with small punch to remove. If pin
becomes tighter, stop and push from opposite end to
remove.
Note: Do not drive pin from carburetor. Float pin standoff
holes will be enlarged, causing permanent damage to car-
buretor.
3. Remove idle mixture screw limiter cap.
4. Remove idle mixture screw with spring. Remove idle
speed screw with spring.
5. Hold throttle shaft and lever to closed position, and
remove two (2) throttle valve screws. See Figure 43.
6. Remove throttle valve, throttle shaft with lever, foam
seal, spring and upper plastic bushing.
Throttle Shaft
And Lever
Figure 43 - Removing Throttle Shaft
Foam
Seal
Rubber
Seal
Numbers
Back View
Throttle
Valve

Choke Shaft

1. Rotate choke shaft and valve to closed position, hold
and remove two screws securing choke valve. See
Figure 44.
Figure 44 - Removing Choke Shaft
2. Remove choke valve, release tension on choke shaft.
3. Remove choke shaft, foam dust seal, and choke
return spring.
4. Remove carburetor main nozzle. See Figure 45.
Figure 45 - Removing Jet Nozzle
5. Using a modified 5/16th pin punch or awl, remove
welch plug from carburetor body. See Figure 46.
Welch
Plug
Punch
Figure 46 - Removing Welch Plug
7-21
Nozzle