Adjust Accelerator Cable; Adjust Throttle Cable; Cable Adjustment - Typical; Throttle Cable Connection To Carburetor - Columbia ParCar P4G Service Manual

As accelerator is depressed to full throttle position, throt-
tle lever at carburetor opens completely for maximum per-
formance and acceleration. As maximum governed speed
is achieved, force from internal centrifical weights (within
the rear axle) begin to exceed the ability of the governor
spring to hold the throttle open. As the governor spring is
overcome by the centrifical forces in the transaxle, the
governor arm rotates, stretching spring and closing throt-
tle on carburetor in order to prevent vehicle from acceler-
ating beyond maximum governed speed. As accelerator
pedal is released to medium speed positions, centrifical
force form transaxle is no longer greater than the acceler-
ator cable/governor spring capacity. This allows for full
range of smooth consistent accelerator operation.

Adjust Accelerator Cable

1. As accelerator pedal is depressed, the long accelera-
tor cable will begin to pull the governor spring and
governor arm towards the rear of the vehicle. See
Figure 10 (#4 and #6). The accelerator cable must not
have slack or free play.
Note: Too much slack or free play will prevent vehicle
from achieving normal governed speed. If cable is too
tight, throttle will open to soon causing abrupt starting
and back fire.
2. Accelerator cable is adjusted with bulkhead fitting at
either end. Loosen jam nuts and adjust cable housing
toward cable end to add slack or away from cable end
to remove slack. Thumb screw (#10) can also be used
to adjust cable.
Note: Always, leave enough threads on cable housing for
cable dust boots to fit securely.
Removal
To remove accelerator cable, slide dust boot off fitting at
cable mount on rear axle. Loosen jam nuts and slide cable
out of slotted bracket. Unhook cable from spring (#6).
Remove front end of cable from electrical panel.
Installation
Reinstall new cable in reverse order and adjust. Always,
check cable adjustment after installation.

Adjust Throttle Cable

There should be 1/8-1/4" of slack between throttle cable
ball and governor bracket (Figure 10, #4). This slack
ensures that micro switch activates before carburetor
opens.
Bulkhead
Fitting
Figure 11 - Throttle Cable
Adjustment
Throttle cable is adjusted at bulkhead fitting, at either end
of the cable. Loosen jam nuts and adjust cable housing
toward cable end to add slack or away from cable end to
remove slack.
Figure 12 - Cable Adjustment - Typical
Note: Enough threads on cable housing must extend
through cable brackets to install cable dust boot.
Removal
Throttle cable is installed into snap fitting at carburetor.
Carburetor end of cable has formed "L" hook which is
pushed into snap fitting, locking throttle cable into carbu-
retor throttle lever. See Figure 13.
Figure 13- Throttle Cable Connection to Carburetor
2-21
Throttle Cable
Slack