Exmark Commercial 21 4500-686 Rev. B - Manual (Page 14)

Operation
Throttle-Choke Lever (ECXHN21)
Located on the left side of the handle bar.
The lever is used to control engine speed. Moving
the throttle to the full forward (Choke) position will
place the lever in the choke position. The choke aids
in starting a cold engine. Moving the throttle control
forward will increase engine speed and moving it to
the rear will decrease engine speed.
Choke Control (ECXHNBBC21)
Located on the front left side of the engine as shown
in Figure 10.
The choke aids in starting a cold engine. Pulling
outward will place the control in the choke position.
Pushing the control inward shuts off the choke.
Blade Control Lock Lever (Blade
Brake Clutch Units Only)
The blade control lock lever is located on the right
side of the handle next to the Blade Control Bail as
shown in Figure 4.
Moving the blade control lock lever into the full
forward position releases the blade control bail.
Squeezing the blade control bail against the handle
engages the blade. Releasing the blade control bail
automatically disengages the blade. The blade control
lock lever will reset to lock the blade control bail.
Engine Stop Switch
Located on the left side of the engine in front of the
fuel tank as shown in Figure 5. The engine stop switch
is used on ECXHNBBC21 and ECXKABBC21 (see
Figure 10 and Figure 11 ).
Press the switch to “STOP” to kill the engine. Press
“|” before starting the engine.
Figure 5
Clear plastic cover removed for clarity
1. Engine stop switch
2. Press “STOP” to kill engine
3. Press “I” before starting engine
Fuel Shut-Off Valve
The fuel shut off valve is located between the
carburetor and the fuel tank. The fuel shut off valve
shuts off the flow of fuel when the machine will
not be used for a few days, when parking inside a
building, and during transport to and from the job.
Figure 6
Kawasaki Unit
1. Fuel valve
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