Exmark M216KASPC manual Adjusting the Self-propelDrive, Servicing the Spark Plug

Adjusting the Self-propel Drive

If the lawn 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 wheel drive control knob on the rear of the gear box.

1.Close the door in the lawn mower housing and remove the grass bag.

2.Rotate the control knob clockwise ￿/￿ turn if the lawn mower does not self-propel. If the lawn mower creeps forward, rotate the knob ￿/￿ turn counterclockwise to loosen the belt (Fig. 30).

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Figure 30

1. Control knob

3.Slowly pull the lawn mower backward while you gradually move the control bar toward the handle.

Note: The adjustment is correct when the rear wheels stop turning and the control bar is about one inch (2.5 cm) from the handle (Fig. 31).

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Figure 31

1. One inch (2.5 cm)

Servicing the Spark Plug

Check the spark plug after every 100 operating hours. Use an NGK BPR5ES spark plug or equivalent.

1.Stop the engine and wait for all moving parts to stop.

2.Disconnect the wire from the spark plug (Fig. 9).

3.Clean around the spark plug.

4.Remove the spark plug from the cylinder head.

Important Replace a cracked, fouled, or dirty spark plug. Do not clean the electrodes because grit entering the cylinder can damage the engine.

5.Set the gap on the plug to 0.030 in. (0.76 mm) (Fig. 32).

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Figure 32

1. 0.030 in. (0.76 mm)

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.

Changing the Oil Filter

Replace the oil filter (Fig. 33) after every 100 operating hours or yearly, whichever comes first.

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	Figure 33
1. Oil filter	2. Fuel line

1.Run the engine to warm the oil.

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