Servicing The Spark Plug - Toro Z Master Professional 6000 74922 Operator's Manual

Servicing the Spark Plug

Service Interval: Every 100 hours
Make sure the air gap between the center and side electrodes
is correct before installing the spark plug. Use a spark plug
wrench for removing and installing the spark plug(s) and a
gapping tool/feeler gauge to check and adjust the air gap.
Install a new spark plug(s) if necessary.
Type : Champion ® RC12YC or equivalent
Air Gap: 0.76 mm (0.03 inch)
Removing the Spark Plug
1. Stop the engine, remove the key, and wait for all moving
parts to stop before leaving the operating position.
2. Disengage the PTO, move the motion-control levers to
the neutral-locked position, and set the parking brake.
3. Remove the left hand hydraulic-unit shroud in the
order listed in Figure
Note: This gives you access to the front spark plug.
1. Pull this tab out to the
side in the direction of the
arrow
2. Pull the shroud off of this
frame tab in the direction
of the arrow
53.
Figure 53
3. Pull the shroud off of this
frame tab in the direction
of the arrow
4. Shroud
4. Remove the spark plug.
G008803
A
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5. Install the left hand hydraulic-unit shroud
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 0.76 mm (0.03 inch).
A
40
B
Figure 54
(Figure
B
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Figure 55
53).