Checking The Spark Plugs; Installing The Spark Plugs - Toro 74906 Operator's Manual

Figure 54
1. Pull this tab out to the
side in the direction of the
arrow.
2. Pull the shroud off of this
frame tab in the direction
of the arrow.
4. Remove the spark plugs.
G008803
A
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Figure 55
5. Install the lefthand hydraulic unit shroud
3. Pull the shroud off of this
frame tab in the direction
of the arrow.
4. Shroud
B
(Figure 54).

Checking the Spark Plugs

Important: Replace the spark plugs when they have: a
black coating, worn electrodes, an oily film, cracks or
reuse is questionable.
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 0.76 mm (0.030 inch).
A

Installing the Spark Plugs

Tighten the spark plugs to 24.4 to 29.8 N-m (18 to 22 ft.-lb).
39
B
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Figure 56
Figure 57