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Figure 20
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
6
through
8
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.
Important: If the oil level in the crankcase is
too low or too high and you run the engine,
you may damage the engine.
9. Install the dipstick securely.
10. Recycle the used oil properly.
3. The oil level is too
low—add oil to the
crankcase.
Servicing the Spark Plug
Service Interval: Every 100 hours—Inspect, clean, and
adjust the spark plug gap; replace the
spark plug if necessary.
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.
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 0.76 mm (0.030 inch); refer
to
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 to 23 N-m (2.3 kgf-m, 17 ft-lb).
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.
18
Figure 21
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