Toro 74969 Operator's Manual page 41

Figure 51
1. Pull this tab out to the
side in the direction of the
arrow
2. Pull the shroud off this
frame tab in the direction
of the arrow
4. Remove the spark plug.
Figure 52
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3. Pull the shroud off this
frame tab in the direction
of the arrow
4. Shroud
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5. Install the left hydraulic-unit shroud
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).
Installing the Spark Plug
41
(Figure
Figure 53
Figure 54
51).
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