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1. The oil level is at its
maximum.
2. The oil level is too
high—remove oil from
the crankcase.
•
If the oil level is too low, add a small amount
of oil slowly to the oil-fill tube, and then repeat
steps through 9 until the oil level on the dipstick is
correct.
•
If the oil level is too high, drain the excess oil until
the oil level on the dipstick is correct. To drain the
excess oil, refer to Changing the Engine Oil (page
14).
Important: If the oil level in the crankcase is
too low or too high and you run the engine,
you may damage the engine.
10. Install the dipstick securely.
11. Recycle the used oil properly.
Servicing the Spark Plug
Service Interval: Every 100 hours
Use an Champion RN9YC spark plug or equivalent.
1. Stop the engine and wait for all moving parts to stop.
2. Disconnect the wire from the spark plug (Figure 18).
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.
Figure 21
3. The oil level is too
low—add oil to the
crankcase.
5. Set the gap on the plug to 0.76 mm (0.030 in) as shown
in Figure 22.
1. Center electrode insulator
2. Side electrode
6. Install the spark plug and the gasket seal.
7. Torque the plug to 15 ft-lb (20 N-m).
8. Connect the wire to the spark plug.
Replacing the Blade
Service Interval: Yearly
Important: You will need a torque wrench to install the
blade properly . If you do not have a torque wrench or
are uncomfortable performing this procedure, contact
an Authorized Service Dealer.
Examine the blade whenever you run out of gasoline. If the
blade is damaged or cracked, replace it immediately. If the
blade edge is dull or nicked, have it sharpened or replace it.
WARNING
The blade is sharp; contacting the blade can result
in serious personal injury.
Wear gloves when servicing the blade.
1. Disconnect the spark-plug wire from the spark plug;
refer to Preparing for Maintenance (page 13).
2. Tip the machine onto its side (Figure 23), with the
dipstick down.
3. Use a block of wood to hold the blade steady.
15
Figure 22
3. Air gap (not to scale)
Figure 23
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