Toro TimeCutter SS 4225, Operator'S Manual

Page: 31 / 52

B A
C
D
E
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Figure 32
Servicing the Spark Plug
Service Interval: Every 200 hours—Check the spark plug(s)
condition and gap.
Every 500 hours—Replace the spark plug(s).
The spark plug is RFI compliant. Equivalent alternate brand
plugs can also be used.
Type: Champion XC12YC
Air Gap: 0.76 mm (0.03 inch)
Removing the Spark Plug
1. Disengage the blade-control switch, move the
motion-control levers outward to the P
ARK
position,
shut off the engine, and remove the key.
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 ( Figure 33 ).
B
A
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Figure 33
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).
B
A
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Figure 34
Installing the Spark Plug
Tighten the spark plug to 25 to 29 N·m (18 to 22 ft-lb).
Figure 35
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