Cub Cadet 6X4 Shop Handbook page 220

Kohler Engine Speed and Throttle Adjustment Addendum
7. The governed idle can be adjusted by bending
the tab that holds the light spring that applies
tension between the governor bracket and the
governor arm. It should be set to achieve steady
idle of 1,300 RPM. See Figure 7a.3.
Governed idle
spring
Governed
idle tab
Figure 7a.3
8. After the governed idle is set, the carburetor
throttle stop should be set: See Figure 7a.4.
Figure 7a.4
• Apply light force to the governor arm, bringing
the engine below governed idle speed pushing
the throttle arm against the throttle stop screw.
• Adjust the throttle stop to 1,100 RPM using a
phillips head screw driver.
Throttle stop screw
9. After the idle and throttle stop are set, check and
adjust top no-load speed. See Figure 7a.5.
Top no-load speed
adjustment screw
• Apply light force to the governor input arm bring-
ing it against the stop.
• The engine should reach 3,600 RPM.
• If adjustment is necessary, use a pair of 6mm
wrenches to adjust the length of the bolt that
transfers movement from the governor input arm
to the silver-colored intermediate governor arm.
10. Eliminate any linkage bind and play before
attempting to adjust the linkage:
• Clean, lubricate, or replace the cable if neces-
sary to achieve proper function.
• Clean, lubricate, or repair the pedal assembly as
necessary to achieve proper function. Dry lubri-
cants such as graphite or PTFE are preferred.
216
Governor input arm
Intermediate
governor arm
Figure 7a.5