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2
1. Oil fill hole
2. Dipstick
2. Replace and secure the dipstick.
3. Wipe up any spilled oil.
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.
Type: NGK BPR6ES or equivalent
Gap: 0.7 to 0.8 mm (0.028 to 0.031 inch)
Note: Use a 13/16 inch (21 mm) 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 22).
2. Ensure that the machine surfaces are cool.
3. Pull the spark-plug wire off the terminal of the spark
plug (Figure 54).
3
4
Figure 53
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 13/16
inch (21 mm) spark-plug wrench to remove the plug
and the sealing washer (Figure 55).
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Checking the Spark Plug
Note: Use a gapping tool/feeler gauge to check and adjust
the gap. Install a new spark plug if necessary.
1. Look at the center of the spark plug (Figure 56). 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.
32
Figure 54
2. Wire
Figure 55
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