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Figure 45
Checking the Spark Plug
Important:
Do not clean the spark plug(s).
Always replace the spark plug(s) when it has a
black coating, worn electrodes, an oily film, or
cracks.
If you see light brown or gray on the insulator, the
engine is operating properly. A black coating on the
insulator usually means the air cleaner is dirty.
Set the gap to 0.75 mm (0.03 inch).
Figure 46
Installing the Spark Plug
Figure 47
Cleaning the Cooling
System
1.
Park the machine on a level surface, disengage
the blade-control switch, and move the
motion-control levers outward to the P
position.
2.
Shut off the engine, remove the key, and wait
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for all moving parts to stop before leaving the
operating position.
3.
Remove the air filter from the engine.
4.
Remove the engine shroud.
5.
To prevent debris entering the air intake, install
the air filter to the filter base.
6.
Clean debris and grass from the parts.
7.
Remove the air filter and install the engine
shroud.
8.
Install the air filter.
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35
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