Servicing The Spark Plug - Toro 74891 Operator's Manual

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Servicing the Spark Plug

Service Interval: Every 500 hours—Replace the spark
plug(s).
The spark plug is RFI compliant. Equivalent alternate brand
plugs can also be used.
Type: Champion XC12YC
Air Gap: 0.76 mm (0.03 inch)
Removing the Spark Plug
1. Disengage the blade-control switch, move the motion
controls outward to the park position, shut off the
engine, and remove the key.
2. Before removing the spark plug(s), clean the area
around the base of the plug to keep dirt and debris out
of the engine.
3. Remove the spark plug
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Figure 40
(Figure 41).
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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.
Note: 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 0.76 mm (0.03 inch).
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Figure 41
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Figure 42