
Figure 24
1. Center electrode insulator
2. Side electrode
3. Air gap (not to scale)
6. Install the spark plug and the gasket seal.
7. Torque the plug to 17 ft-lb (23 N
⋅
m).
8. Connect the wire to the spark plug.
Fuel System
Maintenance
Emptying the Fuel Tank and
Cleaning the Fuel Filter
The fuel filter (screen) element is located inside
the fuel tank. Clean the fuel filter element every
100 operating hours.
1. Stop the engine and wait for it to cool down.
Important:
Drain gasoline from a cold
engine only.
2. Disconnect the wire from the spark plug
3. Close the fuel valve (Figure 22).
4. Disconnect the fuel line by loosening the tube
clamp at the carburetor.
5. Open the fuel valve.
6. Drain the gasoline completely from the tank
and fuel line into an approved fuel container.
7. Remove the fuel tank from the mower.
8. Close the fuel valve.
9. Pour a small amount of fuel in the fuel tank,
move the fuel around in the tank, and pour it
out into an approved fuel container.
10. Install the fuel tank and fuel line; refer to
Installing the Fuel Tank and the Fuel Line.
Drive System
Maintenance
Adjusting the Self-propel
Drive
If the mower does not self-propel or has a
tendency to creep forward when the control bar is
more than 1-1/2 inches (3.8 cm) from the handle,
adjust the self-propel drive.
1. Loosen the nut that secures the turnbuckle
Figure 25
1. Turnbuckle
3. Cable
2. Nut
4. 1-1/2 inches (3.8 cm)
2. Turn the turnbuckle until you remove the slack
in the exposed cable (Figure 25).
3. Tighten the nut.
Note:
To check the adjustment, slowly pull
the mower backward while you gradually
move the control bar toward the handle. The
adjustment is correct when the rear wheels
stop turning and the top of the control bar is
about 1-1/2 inches (3.8 cm) from the handle.
Servicing the Wheels
Removing the Wheels
1. Stop the engine and wait for all moving parts
to stop.
2. Disconnect the wire from the spark plug
21