Toro Titan X4850 Manuel D'utilisation page 42

Figure 50
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).
Figure 51
Installing the Spark Plug
Figure 52
Cleaning the Blower
Housing
Service Interval: Every 100 hours/Yearly (whichever
To ensure proper cooling, ensure that the grass
screen, cooling fins, and other external surfaces of the
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engine are kept clean at all times.
Clean the cooling fins and external surfaces as
necessary. Make sure that the cooling shrouds are
installed. Torque the blower housing screws to 7.5
N∙m (5.5 ft-lb).
Important:
Operating the engine with a blocked
grass screen, dirty or plugged cooling fins, and/or
cooling shrouds removed, causes engine damage
due to overheating.
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