Servicing The Spark Plugs - Toro Z Master 75990 Operator's Manual

Figure 53
Note:
Ensure the oil filter gasket touches the
engine and then an extra 3/4 turn is completed.
3. Fill the crankcase with the proper type of new
oil; refer to Changing the Engine Oil (page

Servicing the Spark Plugs

Service Interval: Every 100 hours
Make sure that the air gap between the center
electrode and the side electrode is correct before
installing each spark plug. Use a spark-plug wrench
for removing and installing the spark plugs and a
g029644
gapping tool/feeler gauge to check and adjust the air
gap. Install new spark plugs if necessary.
Type : NGK ®
Air Gap: 0.76 mm (0.030 inch)
Removing the Spark Plug
1. Shut off 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 engage
the parking brake.
3. Remove the left hydraulic-unit shroud in the
order listed in
Note:
This gives you access to the front spark
plug.
g027477
41).
42
BPR4ES or equivalent
Figure 54.