Servicing The Spark Plug - Toro 23522 Operator's Manual

A
C
E
Figure 24
6. Add oil to the machine so that the oil level reaches the
"Full" mark on the dipstick.
B
D
F
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Servicing the Spark Plug

Service Interval: Every 50 hours—Check the spark plug.
Every 100 hours—Replace the spark plug.
Ensure that 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 and a
gapping tool or feeler gauge to check and adjust the air gap.
Install a new spark plug if necessary.
Type: Champion
or NGK ® BPR6ES
Air Gap: 0.76 mm (0.030 inch)
Removing the Spark Plug
1. Park the machine on a level surface, shut off the engine,
and remove the key from the ignition switch.
2. Before removing the spark plug(s), clean the area
around the base of the plug to keep dirt and debris out
of the engine.
3. Remove the spark plug
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A
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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.
Note: 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
21
® RC12YC, Autolite ® 3924,
(Figure 25).
B
Figure 25
B
Figure 26
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