Exmark Commercial 21 4500-686 Rev. B - Manual (Page 15)

Operation
Figure 7
Honda Unit
1. Air cleaner 3. Fuel cap
2. Fuel valve
On ECXKA21, ECXKABBC21, and ECSHN21
units, rotate the valve 1/4 turn clockwise to shut off
fuel. Rotate the valve 1/4 turn counterclockwise to
turn on fuel.
Figure 8
1. Rotate clockwise to close
2. Rotate counterclockwise to open
On ECXHN21 and ECXHNBBC21 units, the fuel
shut off valve is located on the engine as shown in
Figure 9. Rotate 1/4 turn clockwise to shut off fuel.
Rotate the valve 1/4 turn counterclockwise to turn
on fuel.
Figure 9
1. Fuel valve
Pre-Start
Fill fuel tank on level ground. For best results use
only clean, fresh regular grade unleaded gasoline with
an octane rating of 87 or higher.
Important: Never use methanol, gasoline
containing methanol, gasohol containing more
than 10% ethanol, premium gasoline, or white
gas because the fuel system could be damaged.
Do Not add oil to gasoline.
Do Not use gasoline that has been stored since the
last mowing season or longer.
Do Not overfill fuel tank. Never fill the fuel tank so
that the fuel level rises above a level that is 1/2 inch
below the bottom of the filler neck to allow for fuel
expansion and prevent fuel spillage.
Make sure you understand the controls, their
locations, their functions, and their safety
requirements.
Refer to the Maintenance section and perform all the
necessary inspection and maintenance steps.
Operating Instructions
Handle Adjustment
The height of the handle can be adjusted for
comfortable operation. Stand behind the handle to
determine the height. To adjust the handle height,
position the hardware into one of the three holes in
the handle bracket.
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