Note:
Install a new paper air filter if you discarded
the old one.
9. Install the cover and secure it with the screw.
Changing the Engine Oil
Service Interval:
After the first 8 hours
Every 50 hours
Change the oil after the first 8 operating hours and than
after every 50 operating hours or every season (more
frequently in dusty or dirty conditions).
1. Run the engine to warm the engine oil.
Note:
Warm oil flows better and carries more
contaminants.
Oil may be hot after engine has been run, and
contact with hot oil can cause severe personal
injury.
Avoid contacting the hot engine oil when you
drain it.
2. Stop the engine and wait for all moving parts to stop.
3. Disconnect the wire from the spark plug (Figure 13).
4. Place a suitable drain pan under the right side of
the mower.
5. Remove the dipstick by rotating the cap
counterclockwise and pulling it out.
6. Tip the mower onto its
right
side to drain the oil
into the drain pan.
Note:
You can also remove the oil from the
crankcase using an oil extractor.
7. Return the mower to its operating position.
8. Insert the dipstick into the filler neck and rotate the
cap clockwise until it is tight.
9. Recycle the used oil according to local codes.
10. Fill the crankcase to the Full line on the dipstick with
fresh oil. Refer to the Filling the Crankcase with Oil.
11. Wipe up any spilled oil.
Servicing the Spark Plug
Service Interval:
Every 100 hours
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 (Figure 13).
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)
(Figure 30).
Figure 30
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.
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