Servicing The Spark Plug - Toro Z Master 74927 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.
Note: There are different spark plugs for the engines.
Ensure the correct spark plug is used.
Type: NGK ® BPR4ES or equivalent
Air Gap: 0.030 inch (0.75 mm)
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 52. 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
4. Remove the spark plug.
G008803
5. Install the lefthand hydraulic unit shroud (Figure 52).
37
Figure 52
3. Pull the shroud off of this
frame tab in the direction
of the arrow
4. Shroud
Figure 53