Changing the Engine Oil
Service Interval:
After the first 5 hours
Every 50 hours
1. Run the engine to warm the engine oil.
Note:
Warm oil flows better and carries more
contaminants.
WARNING
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.
4. Place a drain pan on the ground to the right of the
machine.
5. Remove the dipstick (Figure 20).
G016924
Figure 20
6. Tip the machine onto its side, with the air filter up,
to drain the used oil out through the oil fill tube.
7. Tip the machine upright again.
8.
Slowly
pour oil into the oil fill tube, periodically
checking the level with the dipstick, until the dipstick
indicates that the engine is full as illustrated in Figure
40.
Do not overfill.
(Max. fill: 20 oz. (0.55 l),
type: SAE 30W detergent oil with an API service
classification of SH, SJ, SL, or higher.)
Note:
If you overfill the engine, pour some oil out
of it.
9. Install the dipstick securely.
10. Recycle the used oil according to local codes.
Servicing the Spark Plug
Service Interval:
Every 100 hours—Inspect, clean,
and adjust the spark plug; replace it if
necessary.
Every 200 hours—Replace the spark
plug.
Use an
NGK BPR6ES
spark plug or equivalent.
1. Stop the engine and wait for all moving parts to stop.
2. Disconnect the wire from the spark plug.
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 inch (0.76 mm)
(Figure 21).
Figure 21
1.
Center electrode insulator
2.
Side electrode
3.
Air gap (not to scale)
6. Carefully install the spark plug by hand (to avoid
cross threading) until it is hand tight.
7. Tighten the spark plug an additional 1/2 turn if it is
new; otherwise, tighten it an additional 1/8 to 1/4
turn.
Important:
A loose spark plug can become very
hot and can damage the engine; overtightening
a spark plug may damage the threads in the
cylinder head.
8. Connect the wire to the spark plug.
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