Toro GrandStand 74534TE Operator's Manual page 38

Removing the Spark Plug
1. Disengage the PTO, move the motion control levers
to the neutral locked position and set the parking
brake.
2. Stop the engine, remove the key, and wait for all
moving parts to stop before leaving the operating
position.
Figure 48
Checking the Spark Plug
Important: Never 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 0.030 inches (0.75 mm).
1
Figure 49
Installing the Spark Plug
Tighten the spark plug(s) to 16 ft.-lb (22 N-m).
2
G008794
38
Figure 50