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1. Fill port
2. Oil cap/dipstick
2. Slowly pour approximately 80% of the specified
amount of oil into the fill port (Figure 27).
3. Add additional oil to bring the oil level to the upper
limit mark on the dipstick; refer to Checking the
Engine Oil Level (page 12).
4. Install the oil cap/dipstick (Figure 27).
Servicing the Spark Plug
Service Interval: Every 100 hours/Every 6 months
(whichever comes first)—Check the
spark plug.
Every 300 hours/Yearly (whichever comes
first)—Replace the spark plug.
Note: Use a 20 mm (13/16 inch) spark plug wrench for
removing and installing the spark plug.
Removing the Spark Plug
1. Park the machine on a level surface and turn off the
engine; refer to Stopping the Engine (page 13).
2. Ensure that the machine surfaces are cool.
3. Pull the spark-plug wire off the terminal of the spark
plug (Figure 28).
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4
Figure 27
3. Oil level (upper limit)
4. Oil level (lower limit)
1. Spark plug
4. Clean around the spark plug.
5. Rotate the spark plug counterclockwise using a 20 mm
(13/16 inch) spark-plug wrench to remove the plug
and sealing washer (Figure 29).
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Checking the Spark Plug
Note: Use a gapping tool/feeler gauge to check and adjust
the air gap. Install a new spark plug if necessary.
Air Gap: 0.7 to 0.8 mm (0.028 to 0.031 inch)
Spark plug type: BPR6ES (NKG) or equivalent
1. Look at the center of the spark plug (Figure 30). If you
see light brown or gray on the insulator, the engine is
operating properly.
Important: Never clean the spark plug. Always
replace the spark plug when it has a black coating,
worn electrodes, an oily film, or cracks.
21
Figure 28
2. Wire
Figure 29
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