Servicing The Spark Plug - Toro 74942 Operator's Manual

Servicing the Spark Plug

Service Interval: Every 200 hours—Check, clean and regap
the spark plug.
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 ® XC12YC, Champion
equivalent
Air Gap: 0.76 mm (0.030 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 lefthand hydraulic unit shroud in the order
listed with Figure 51. 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
® Platinum3071 or
g024214
Figure 51
3. Pull the shroud off of this
frame tab in the direction
of the arrow
4. Shroud
4. Remove the spark plug.
g024215
A
g027478
5. Install the lefthand hydraulic unit shroud
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).
A
37
B
Figure 52
(Figure
B
g027479
Figure 53
51).