Toro 07266TC, Operator'S Manual

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Figure 30
1. Center electrode insulator 3. Air gap (not to scale)
2. Side electrode
4. Set the air gap between the center and side of the
electrodes at 0.030 inch (0.762 mm) (Figure 30).
Install the correctly gapped spark plug and tighten
the plug to 14 ft-lb (20 N-m).
5. Install the spark plug wires.
Servicing the Spark Plugs
(Models 07273/TC only)
Service Interval: Every 800 hours
Replace the spark plugs after every 800 operating hours
or yearly, whichever occurs first, to ensure proper engine
performance and reduce the exhaust emission level.
Type: Champion RC 14YC (or equivalent)
Air Gap: 0.030 inch (0.762 mm)
Note:
The spark plugs usually last a long time; however,
the plugs should be removed and checked whenever the
engine malfunctions.
1. Clean the area around the spark plugs so that foreign
matter cannot fall into the cylinder when the spark
plug is removed.
2. Pull the spark plug wires off of the spark plugs and
remove the plugs from the cylinder head.
3. Check the condition of the side electrode, center
electrode, and center electrode insulator to ensure
that there is no damage (Figure 30).
Figure 31
1. Center electrode insulator 3. Air gap (not to scale)
2. Side electrode
Important:
A cracked, fouled, dirty, or
malfunctioning spark plug must be replaced. Do
not sand-blast, scrape, or clean the electrodes by
using a wire brush because grit may eventually
release from the plug and fall into the cylinder.
The result is usually a damaged engine.
4. Set the air gap between the center and side electrodes
at 0.030 inch (0.762 mm) (Figure 30).
5. Install the correctly gapped spark plug and tighten
the plug to 18-22 ft-lb (24-30 N-m). If a torque
wrench is not used, tighten the plug firmly.
6. Install the spark plug wires.
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