Checking The Spark Arrester - Toro Z Master Professional 5000 Series Operator's Manual

Checking the Spark Plug
Important:
Replace the spark plug(s) when it
has: 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 the air cleaner is dirty.
Set the gap to 0.76 mm (0.030 inch).
Figure 52
Installing the Spark Plug
Tighten the spark plug(s) to 24.4 to 29.8 N∙m (18 to
22 ft-lb).
Figure 53
Checking the Spark
Arrester
For a model with a Spark Arrester
Service Interval: Every 50 hours
WARNING
Hot exhaust system components may ignite
gasoline vapors even after you shut off the
engine. Hot particles exhausted during engine
operation may ignite flammable materials.
Fire may result in personal injury or property
damage.
Do not refuel or run the engine unless the
spark arrester is installed.
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1. Stop engine, wait for all moving parts to stop,
and remove key. Engage parking brake.
2. Wait for muffler to cool.
3. If there are any breaks in the screen or welds,
replace the arrester.
4. If the screen is plugged, remove the arrester
and shake the loose particles out of the arrester
and clean the screen with a wire brush (soak it
in solvent if necessary). Install the arrester on
the exhaust outlet.
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