Cleaning The Blower Housing - Toro TimeCutter MX 5050 Operator's Manual

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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 (0.030 inch).
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Installing the Spark Plug
Tighten the spark plug to 25 to 29 N-m (18 to 22 ft-lb).
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Figure 35
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Figure 36
Figure 37

Cleaning the Blower Housing

To ensure proper cooling, make sure the grass screen, cooling
fins, and other external surfaces of the engine are kept clean
at all times.
Annually, or every 100 hours of operation (more often
under extremely dusty, dirty conditions), remove the blower
housing, and any other cooling shrouds. Clean the cooling
fins and external surfaces as necessary. Make sure 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, will cause engine damage due to
overheating.
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