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8.
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.
Spark Plug Specifications
Type: NGK BPR6ES or equivalent
Gap: 0.7 to 0.8 mm (0.028 to 0.031 inch)
Note:
Use a 21 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 shut
off the engine.
2.
Ensure that the machine surfaces are cool.
3.
Pull the spark-plug wire off the terminal of the
spark plug
(Figure
1. Spark plug
4.
Clean around the spark plug.
5.
Rotate the spark plug counterclockwise using
a 21 mm (13/16 inch) spark-plug wrench to
remove the plug and the sealing washer
47).
46).
Figure 46
2. Wire
Checking the Spark Plug
Important:
replace the spark plug when it has a black coating,
worn electrodes, an oily film, or cracks.
Note:
If you see light brown or gray on the insulator,
the engine is operating properly. A black coating on
the insulator usually means that the air cleaner is dirty.
Set the gap to 0.7 to 0.8 mm (0.028 to 0.031 inch).
g014506
(Figure
33
Figure 47
Do not clean the spark plug. Always
Figure 48
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