Kohler COMMAND PRO CS10, Service Manual

Page: 42 / 154

5.8
Section 5
Fuel System and Governor
Figure 5-8. Governor System.
Initial Adjustment
Make this initial adjustment whenever the governor
lever is loosened or removed from the cross shaft. To
ensure proper setting, make sure the throttle linkage is
connected to the governor lever and to the carburetor
throttle lever (certain engine components removed for
clarity of illustration).
Governor Adjustment
1. Close the fuel shut-off valve.
2. Remove the air cleaner outer cover. Then either
reposition the fuel tank to access governor shaft
and lever joint, or disconnect the fuel line and
remove the tank from the engine.
NOTE: Make sure the carburetor is mounted
and secured in place when adjustment is
being made/checked.
3. Loosen the governor lever mounting bolt.
4. Move the governor lever clockwise until it stops.
When a load is applied and the engine speed (and
governor gear speed) decreases, the governor spring
tension moves the governor lever to open the throttle
plate wider. This allows more fuel into the engine,
increasing engine speed. (This action occurs very
rapidly, so a reduction in speed is hardly noticed.) As
the speed reaches the governed setting, the governor
spring tension and the force applied by the regulating
pin will again be in equilibrium. This maintains the
engine speed at a relatively constant level.
The governed speed setting is determined by the
position of the throttle control. It can be variable or
constant, depending on the application.
Figure 5-9. CS4, CS6 Governor Adjustment.
Governor
Lever
Mounting
Bolt
Governor
Shaft
Governor Lever
Governor Shaft
Mounting
Bolt
Figure 5-10. CS8.5 (spec. 92xxxx), CS10, and CS12
Governor Adjustment.
5. Rotate the governor shaft clockwise until it stops.
6. Hold both in this position and tighten the governor
lever bolt.
Torque the bolt to:
8 N·m (70.8 in. lb.) on CS4, CS6
10 N·m (88.5 in. lb.) on CS8.5, CS10, CS12