Checking The Spark Arrester (If Equipped) - Toro 74919TE Operator's Manual

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Figure 58
5. Install the left-hand hydraulic-unit shroud
Checking the Spark Plugs
Important: Never 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 that the air cleaner is dirty.
Set the gap to 0.76 mm (0.030 inch).
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Installing the Spark Plugs
Tighten the spark plugs to 24.4 to 29.8 N-m (18 to 22 ft-lb).
57).
Checking the Spark Arrester
(if equipped)
Service Interval: Every 50 hours
WARNING
Hot exhaust system components may ignite
gasoline vapors even after the engine is stopped.
Hot particles exhausted during engine operation
may ignite flammable materials. Fire may result in
personal injury or property damage.
Do not fuel or run the engine unless the spark
arrester is installed.
1. Stop the engine, wait for all moving parts to stop, and
remove the key. Engage the parking brake.
2. Wait for the muffler to cool.
3. If any breaks in the screen or welds are observed,
replace the arrester.
4. If plugging of the screen is observed, remove the
arrester and shake any loose particles out of the
arrester, and clean the screen with a wire brush (soak it
in solvent if necessary). Install the spark arrester on the
exhaust outlet.
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